Ergodentheorie

25
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Transcript of Ergodentheorie

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Hykemhcghey`hn` Achcmxck axf Bhhciy§xogh

Zay`ob Yemh

1=#:9#9:11

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@cgalsvhyth`ogc`s

H`clh`xck 1

1 Hykem`t`§a 9

9 Mhy Hykemhcsat vec I`ybge 6

? Bhhciy§xogh 0

= Achcmxck mhs Hyekmhcsaths 9:

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@cgalsvhyth`ogc`s 1

H`clh`xck

M`h Hykemhcghey`h sxm`hy mas Lackth`vhygalhc mpcan`soghy _psh.nh n` naÕ. iht`hgxcksh`sh agysogh`cl`ogbh`sgheyh`soghc Nhgemhc#N`g`lfh m`hshy l§ass s`og h`c vec mhy Axssakh ghy txn saybhc Khsht mhykyeÕhc Taglhc §aqx`valhchy _at ihh`shc# [`y ihsog§af`khc xcs alse n`h`chy Felkh vec Txfallsvay`ailhc, mhyhc N`hlhy khkhc h`ch Becsac.h becvhyk`hyhc sell# Txkyxcmh l`hk maih` allhym`cks bh`ch Felkh vec xc.aig§ack`khc xcm klh`ogvhyh`lhc Txfallsvay`ailhc, secmhyc h`c sekhcacchsmpcan`soghs _pshn xcm Txfallsvay`ailhc, m`h n`g`lfh vec h`chy _hlis.aii`lmxck . m`h `nnhy xcm `nnhy `hmhy axf s`og shlis ackhhcmh `ym. mhfic`hy hymhc# _`cm macc kh`ssh Veyaxsshtxckhc hyf §xll, gaihc m`h.sh Txfallsvay`ailhc §agcl`ogh H`khcsogafhc `h xcaig§ack`k xcm `mhc`sog

vhyh`lhc Txfallsvay`ailhc#Nac bacc s`og m`h _hlisaii`lmxck `h mas Vhygalhc vec h`chy I`hchveyshllhc, m`h kh§aykhy xymh xcm cxc `h `lm `c h`chn kh`sshc Yaxnghyxn`hk# Als Txfallsvay`ailhc b§ecch nac macc mhc Axfhcgalseymhy I`hch tx vhysog`hmhchc, axfh`cacmhy felkhcmhc Th`zxcbhc §aglhc#Ca§xyl`og s`cm m`hsh macc c`og xcaig§ack`k, mhcc mhy Axfhcgalsey mhyI`hch tx h`chn ihs`nnhc Th`zxcb ihs`nn shgy egl, e s`h s`ogbxyt maccaog axfgalhc b§ecch# ]yetmhn bacc nac 'hcc nac m`h `l.mh I`hch cxy als naghna`soghs Khmacbhchwzhy`nhc ihyaogh) caogxchcml`og lackhy Flxkth` n` txf §all`khc Y`ogxcks`nzxlshc mayaxf sogl`h.

Õhc, e s`h s`og `n N`hl an nh`shc axfkhgalhc ga4 c§anl`og `c mhyN`h mhs Yaxnhs#Mas §ayh m`h Felkhyxck mhs I`ybge‐soghc Hykemhcsat, mhy `c Baz`hl 9ih`hshc hymhc sell# Txvey nxss mhy Ihky` mhy Hykem`t`§a hys h`cnalmhfic`hy hymhc, as chis th` Ih`sz`hlhc `c Baz`hl 1 khsoghghc `ym#[h`l m`h Ih`sz`hlh axs Baz`hl 1 tay kx mhc Kyxcmkhmacbhc mhy Hyke.m`t`§a vhymhxl`oghc, aihy bh`ch szhbabxl§ayh Achcmxck mhs Hykemhc.saths l`hfhyc, ellhc `y xcs `c Baz`hl ? n` h`chy acmhyhc Achcmxckihsog§af`khc# Hs hymhc Bhhciy§xogh ihgacmhl, f §xy m`h myh` shgy `chy.hssach 'xcm v`hllh`og §xihyyasoghcmh) Hykhic`ssh zy§ashc`hy hymhc#

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1 Hykem`t`§a 9

1 Hykem`t`§a

Hs sh` `n felkhcmhc `nnhy 'Ω, A, Z ) h`c [agysogh`cl`ogbh`syaxn xcmύ 4 Ω Ω h`ch nhssiayh Aii`lmxck#

Mhfic``ec 1#1 '@cvay`act)# [`y chcchc h`c Hyh`kc`s A ∇ A `cvay`ac,falls ύ ∙1'A) > A k`l xcm mhfic`hyhc @ als m`h Ϗ.Alkhiya mhy `cvay`achcHyh`kc`ssh4

@ 4>

A ∇ A 4 ύ ∙1'A) > A

#

Mhfic``ec 1#9 'NaÕyhxh)# M`h Aii`lmxck ύ 4 Ω Ω chcchc `y naÕ.yhx, falls Z 'ύ ∙1'A)) > Z 'A) f §xy allh A ∇ A k`l#Nac chcc 'Ω, A, Z , ύ ) macc h`c mpcan`soghs _pshn#

Mhfic``ec 1#? 'Hykem`t`§a)# @s ύ naÕyhx xcm Z 'A) ∇ r:, 1~ f §xy allhA ∇ @ 'm`h Ϗ.Alkhiya mhy `cvay`achc Hyh`kc`ssh `s Z .y`v`al), se chcchc`y ύ hykem`sog#

Xn cxc tx vhymhxl`oghc, as `y g`hyn` §xihygaxz mhfic`hy gaihc,ihyaoghc `y dht th` Ih`sz`hlh f §xy hykem`sogh Fxcb`echc#

Ih`sz`hl 1#=# _h` c ∇ C, c > 1# [`y shllhc xcs macc h`c c.Hob vey

xcm `mhc`fit`hyhc hs n` mhn Kyxcmyaxn Ω > T%'c)# [`y ellhc xcscxc h`ch Aii`lmxck mhfic`hyhc, m`h vec h`chy Hobh `c h`ch acmhyh Hobhaii`lmh#_h` maf §xy b ∇ r1,###,c ∙ 1~ xcm ύ 4 Ω Ω, w w " b 'nem c)#Xn h`chc benzlhhc [agysogh`cl`ogbh`syaxn tx hygalhc, §aglhc `yA > 9Ω xcm als Z m`h Klh`ogvhyh`lxck axf Ω#Macc k`l4

ύ `s hykem`sog kk]'b, c) > 1#

Ihh`s# _h` kk]'b, c) > i 3 1# Macc k`i hs h`c A ∇ A n` Z 'A) %∇ r:, 1~xcm ύ ∙1'A) > A# N` A > r:, i, 9i,###,c ∙ i~ k`l c§anl`og ύ ∙1'A) > Axcm Z 'A) > 1

i%∇ r:, 1~# ύ `s alse c`og hykem`sog#

_h` cxc kk]'b, c) > 1# ύ ga cxy h`ch Iagc xcm maghy felk axs ύ ∙1

'A) >A shs A > ∈ emhy A > Ω# Mas gh`Õ, mass @ Z .y`v`al `s xcm sen` ύ hykem`sog `s#

Ih`sz`hl 1#8# Acsa selog h`c c.Hob tx ihyaoghc, bacc nac khcaxsekx h`chc Byh`s chgnhc# Mhc `mhc`fit`hyhc `y cxc n` mhn @chyvallΩ > R:, 1) xcm mhfic`hyhc xcs als Aii`lmxck h`ch Myhgxck Ya 4 Ω Ω,w w " a 'nem 1)#_h` h`hy A > I'Ω) xcm Z mas LhihskxhnaÕ#G`hy k`l4

Ya `s hykem`sog a `s `yya`ecal#

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1 Hykem`t`§a ?

Ihh`s# Ya `s `nnhy naÕyhx, xcaig§ack`k vec a ∇ ':, 1)#_h` a > z

qn` z ∇ T, q ∇ C# Mhfic`hyh macc p` > `z

q'nem 1), t` > `z

q" 1

9q

'nem 1) f §xy ` > 1,###,q xcm man` macc

A >

q`>1

Rp`, t`)

Hs k`l Y∙1a 'A) > A xcm Z 'A) > 1

9# Maghy `s Ya c`og hykem`sog#

_h` cxc a %∇ Q xcm h`c θ 3 : veykhkhihc# Macc hw`s`hyhc n,c,b ∇ C

n` n > c xcm |na ∙ ca ∙ b| < θ, eyaxs n` i > 'n ∙ c)a ∙ b felk,mass m`h Nhckh I > rbi nem 1 4 b ∇ C:~ m`og `c R:, 1) l`hk '`c mhn

_`cch, mass dhmhy Zxcb axs R:, 1) naw`nal h`chc Aisacm vec θ tx mhnc§aogshc Zxcb `c I ga)# _h` cxc A ⊉ R:, 1) `cvay`ac xchy Ya# Dht§aglh nac f §xy θ 3 : h`ch Fxcb`ec f ∇ O 'R:, 1)) n` f ∙ 1A1 < θ# Macchyg§al nac n` mhy @cvay`act vec A

f Yca ∙ f 1 < 9θ

f §xy allh c# [h`l f sh`k `s xcm m`h ei`kh H`khcsogaf axf h`chy Nhckh k`l,m`h m`og `c R:, 1) l`hk, k`l

f Y ∙ f 1 ≭ 9θ '1)

f §xy allh ∇ ':, 1)# Nac hyg§al n` f 'w) > 1:

f 'w) mf ∙

1:

f ') m

1

>

1:

1:

f 'w) ∙ f ') m

mw

xcm macc n` mhy NaÕyhxh mhy Yea`ecsaii`lmxck

f ∙

1:

f ') m

1

>

1:

1:

f 'w) ∙ f 'w " nem 1) m

mw

≭ 1:

1: |f 'w) ∙ f 'w " nem 1)| m mw

1:

1:

|9θ| m mw > 9θ, '9)

eih` `y f §xy m`h xchyhc Th`lhc hys m`h Myh`hobs.Xcklh`ogxck xcm macc'1) khcxt gaihc# Mhsh`hyhc gaihc `y n` mhy Ihm`ckxck, m`h `yacfacks f §xy f khfeymhy gaihc 1

:

|f 'w) ∙ 1A'w)| mw < θ

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1 Hykem`t`§a =

axog m`h Xcklh`ogxck

1: f ') m ∙

1: 1A') m

< θ

xcm sen` sogl hÕl`og 1:

1:

f ') m ∙ Z 'A)

mw >

1:

f ') m ∙ Z 'A)

1

< θ# '?)

N` '9), '?), mhy Myh`hobsxcklh`ogxck xcm mhy Ihm`ckxck f §xy f hyg§al nac

1A ∙ Z 'A)1 ≭ 1A ∙ f 1 "

f ∙

1:

f ') m

1

" 1

:

f ') m ∙ Z 'A)

1

< =θ

f §xy dhmhs θ 3 :# [hcc dht Z 'A) ∇ ':, 1) k`l, se k`i hs h`chc Ihyh`ogn` zes``vhn NaÕ `c R:, 1), `c mhn mhy @chkyacm |1A'w) ∙ Z 'A)| h`chczes``vhc [hy acc`nn# Felkl`og `s macc

1A ∙ Z 'A)1 3 :#

[§agl nac θ blh`c khcxk, se hyg§al nac h`chc [`mhyszyxog# Mhncaog `s @ Z .y`v`al xcm Ya hykem`sog#

Ihvey `y cxc tx mhn Hykemhcsat bennhc, ihh`shc `y h`c Lhnna,mas `y sz§ahy iyaxoghc hymhc#

Lhnna 1#6 'Nhssiaybh`)# _h` ύ naÕyhx xcm f 4 'Ω, A) 'Y, I'Y))nhssiay# Macc `s f khcax macc @ .nhssiay, hcc f ύ > f `s#

Ihh`s# Hs sh`

Zy`n$ 4> rf 4 Ω Y 4 f 'A, I'Y)).nhssiay, /f 'Ω) < ∓~

m`h Blassh mhy Fxcb`echc n` cxy hcml og v`hlhc [hyhc# Dhmh m`hshy

Fxcb`echc ga h`ch Mayshllxck

f >c

b>1

ab1Ab ,

ih` mhy a` > a d > : f §xy allh ` > d k`l xcm m`h Ab‐s zaayh`sh m`sdxcbs`cm# N` m`hshy Mayshllxck felk

f `s @ .nhssiay ύ ∙1'f ∙1'I)) > f ∙1'I) f §xy allh I ∇ I'Y)

ύ ∙1'

d∇D A d) >

d∇D A d f §xy allh D ⊉ r1,###,c~# '1)

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1 Hykem`t`§a 8

G`hyvec axskhghcm, th`khc `y cxc m`h ihgaxzhh §Aqx`valhct `c th`_ogy`hc#

„ > “ Hs k`l ύ 'Ab) > Ab f §xy allh b ∇ r1,###,c~# Man` felk m`yhbf ύ > f #

„> “ _h` d ∇ r1,###,c~ ihl`hi`k xcm π ∇ ύ ∙1'A d)# Macc k`l n` f ύ > f

cb>1

ab1Ab ύ 'π) >c

b>1

ab1Ab'π)#

[h`l `y `sshc, mass ύ 'π) `c A d `s, gaihc `y axf mhy l`cbhc _h`h cxyceog a d# Hs felk a d > a d1Ad'π), emxyog π ∇ A d sh`c nxss#_h` cxc d `h hihc, aihy π ∇ A d# Nac ga macc `hmhy

cb>1

ab1Ab ύ 'π) >

cb>1

ab1Ab'π),

eih` m`h yhogh _h`h mhc [hy a d ga# Hs felk ύ 'π) ∇ A d#@cskhsan `sshc `y alse, mass ύ ∙1'A d) > A d f §xy allh d ∇ r1,###,c~ k`l#[h`l m`hsh Nhckhc m`sdxcb s`cm, felk '1)#Allkhnh`c gaihc `y tay bh`ch Fxcb`ec, m`h cxy hcml`og v`hlh [hyh ga,meog f §xy dhmh Fxcb`ec f hw`s`hy h`ch Felkh f c, m`h khkhc f becvhyk`hy#Hs k`l

l`nc∓

f c > f xcm f c ∇ Zy`n$ f §xy allh c ∇ C# '1)

[`y th`khc m`h §Aqx`valhct `hmhy `c th` _ogy`hc#

„> “ Falls f @ .nhssiay `s, se hw`s`hy h`ch Felkh f c n` '1), ih` mhy

axog allh Felkhckl`hmhy @ .nhssiay s`cm# [h`l `y mhc _at f §xy zy`n``vhFxcb`echc ihyh`s ih`hshc gaihc, felk

f c ύ > f c f §xy allh c ∇ C#

[`y n§xsshc cxy ceog th`khc, mass s`og m`hsh H`khcsogaf axog axf mhcKyhcthy §xihyyakhc l§ass# _h` maf §xy π ∇ Ω# Macc k`l

'l`n f c ύ )'π) > l`n f c'ύ 'π))

> l`n f c'π) '9)

„> “ _h` cxc f ύ > f # Macc hw`s`hy `hmhy h`ch Felkh f c n` '1)

xcm mhy txs§atl`oghc H`khcsogaf, mass f c ύ > f c f §xy allh c ∇ C k`l#Xn m`h Nhssiaybh` tx th`khc, iyaxoghc `y m`h @cvay`act mhy Nhckh

rπ ∇ Ω 4 l`n f c'π) ∇ I~

f §xy ihl`hi`kh Nhckhc I ∇ I'Y)# Mas Xyi`lm m`hshy Nhckh xchy mhy Ai.i`lmxck ύ `s

rπ ∇ Ω 4 l`n f c ύ 'π) ∇ I~,

m`h mxyog '9) klh`og mhy ei`khc Nhckh egch mas ύ `s#

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9 Mhy Hykemhcsat vec I`ybge 6

9 Mhy Hykemhcsat vec I`ybge

[`y ellhc cxc axskhghcm vec mhy Fxcb`ec ύ xcm h`chy chxhc Aii`lmxckf h`ch Felkh vec Txfallsvay`ailhc mhfic`hyhc xcm Becvhykhctaxssakhc §xihymhc N`hlhys m`hshy Felkh yhhc#_h` maf §xy ύ naÕyhx xcm f 4 Ω Y h`ch nhssiayh Aii`lmxck# Mhfic`hyh

W c'π) > f ύ c'π) xcm _ c >c∙1b>:

W b f §xy allh c ∇ C:#

Ihvey `y xcs dht mhc Hykemhcsat acshghc, ihh`shc `y txhys h`cG`lfslhnna#

Lhnna 9#1 'Naw`nal.Hykemhclhnna)# _h` W : ∇ L1'Z )#

_hth N c > naw r:, _ 1,###,_ c~ , c ∇ C# Macc k`l

H RW :1rN c3:~^ ≨ : f § xy allh c ∇ C#

Ihh`s# _h` b ∇ C: xcm b ≭ c, macc k`l N c'ύ 'π)) ≨ _ b'ύ 'π))#Amm`hy nac axf ih`mhc _h`hc W :, se hyk`i s`og

W : " N c ύ ≨ W : " _ b ύ > _ b"1

xcm man` axog

W : ≨ _ b"1 ∙ N c ύ f §xy b > :,###,c#

[h`l W : m`hsh Xcklh`ogxck f §xy allh b > :,###,c hyf §xll, bacc nac axf mhyyhoghc _h`h axog mas Naw`nxn i`lmhc xcm hyg§al

W : ≨ naw r_ 1,###,_ c~ ∙ N c ύ# '1)

Mhsh`hyhc k`l

rN c 3 :~o ⊉ rN c > :~ ∠ rN c ύ ≨ :~ ⊉ rN c ∙ N c ύ ≭ :~ # '9)

N` '1) hyg§al nac f §xy mhc Hyayxckshy

H RW :1rN c3:~^ ≨ H R'naw r_ 1,###,_ c~ ∙ N c ύ )1rN c3:~^#

[h`l axfkyxcm mhy @cm`baeyfxcb`ec `n Hyayxckshy se`hse N c 3 :

k`l, bacc nac naw r_ 1,###,_ c~ mxyog N c hyshthc, as

H RW :1rN c3:~^ ≨ H R'N c ∙ N c ύ )1rN c3:~^

hyk`i#Als c§aogshs l§ass nac m`h @cm`baeyfxcb`ec hk xcm ga mamxyog masHykhic`s `hmhy cxy caog xchc aikhsog§at, mhcc caog '9) `s axf mhyNhckh rN c 3 :~o egchg`c N c ∙ N c ύ ≭ : # [`y gaihc alse `cskhsan

H RW :1rN c3:~^ ≨ H RN c ∙ N c ύ > H RN c^ ∙ H RN c ύ > :#

Mhy lhth Axsmyxob `s klh`og :, h`l ύ naÕyhx `s xcm maghy mhy Hyay.

xckshy vec N c iht§xkl`og Z klh`og mhn iht§xkl`og Z

ύ

`s#

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9 Mhy Hykemhcsat vec I`ybge ;

_at 9#9 'I`ybge)# @s ύ hykem`sog xcm f > W : ∇ L1'Z ), se k`l

1

c

c∙1b>:

W bc∓

∙∙∙ H RW :^ Z .fas s`oghy

Ihh`s# [h`l @ Z .y`v`al `s, `s H RW :^ h`ch Vhys`ec mhs ihm`ckhc Hyay.xckshyhs H RW :|@ # [`y th`khc mhsgali m`h Becvhykhct khkhc H RW :|@ #_h` egch Ihsogy§acbxck mhy Allkhnh`cgh` H RW :|@ > : Z .fas s`oghy 'fallsc`og, khgh §xihy tx W c > W c ∙ H RW :|@ , man` k`l macc H RW :|@ > :Z .fas s`oghy)#Hs ilh`i tx th`khc, mass

1

c

c∙1

b>: W b

c∓

∙∙∙ : Z .fas s`oghy k`l#

_hth matx

T > l`n sxzc∓

1

c_ c,

h`hy sh` θ 3 : xcm F > rT 3 θ~# Hs `s T ύ > T xcm man` `sT caog mhn Nhssiaybh`slhnna 1#6 @ .nhssiay, alse `s T ∙1'I) ∇ @ f §xyallh I ∇ I'Y) xcm man` `csihsecmhyh axog f §xy I > 'θ, ∓^, emxyogT ∙1'I) > rT 3 θ~ > F ∇ @ felk#_hth cxc

W θc > 'W c ∙ θ)1F _ θc > W θ: " ### " W θc∙1N θc > naw r:, _ θ1,###,_ θc~ F c > rN θc 3 :~ #

Hs k`l macc F 1 ⊉ F 9 ⊉ ### xcm

∓c>1

F c >

sxzb∇C

1

b_ θb 3 :

>

sxzb∇C

1

b_ b 3 θ

∠ F#

Alse k`l F c ↑ F # N` W : als Nadeyach hyg§al nac mxyog nadey`s`hyhBecvhykhct H RW θ:1F c ^

c∓∙∙∙ H RW θ: ^# Axs mhn Naw`nal.Hykemhclhnna

felk H RW θ:

1F c

^ ≨ :, maghy k`l axog f §xy mhc Kyhcthy

: ≭ H RW θ: ^ > H R'W : ∙ θ)1F ^

> H RW :1F ^ ∙ H Rθ1F ^

> H RH RW :|@ 1F ^ ∙ θZ RF

> ∙θZ RF ,

eyaxs felk : ≨ Z RF Z RF > :#N` θ : s`hg nac, mass Z RT 3 :^ > : `s# Man` `sshc `y

l`n sxzc∓

1

c

_ c ≭ : Z .fas s`oghy#

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9 Mhy Hykemhcsat vec I`ybge 7

[hcc `y dht ceog th`khc, mass axog

l`n `cf c∓

1

c_ c ≨ : Z .fas s`oghy

k`l, s`cm `y fhy`k# [`y mhfic`hyhc matx W c > ∙W c f §xy allh c ∇ C:,

_ c >c∙1b>:

W b, T > l`n sxzc∓

1

c_ c

xcm se h`hy# H`ch acalekh Veykhghcsh`sh l`hfhy macc Z RT 3 :^ > :xcm sen` axog

Z Rl`n sxzc∓

∙1

c_ c 3 :^ > Z Rl`n `cf c∓ _ c < :^ > :#

Ihnhybxck 9#?# Xn tx sb`tt`hyhc, `h mhy Hykemhcsat ackhacm hymhcbacc, khghc `y txy§xob tx Ih`sz`hl 1#=# G`hy b§ecch nac '`c mhn Fall, masskk]'b, c) > 1 `s) als Aii`lmxck f m`h @mhc`§a §aglhc xcm §xymh maccn` mhn Hykemhcsat m`h Becvhykhct

1

c

c∙1

b>:

ύ b'π)c∓

∙∙∙c ∙ 1

9

Z .fas s`oghy

hygalhc# Nac b§ecch f ca§xyl`og ceog acmhys mhfic`hyhc xcm §xymh chxhHykhic`ssh ihbennhc# Meog xn `ybl`og `chyhssach Axssakhc tx hygal.hc, hymhc `y xcs vec mhn Ih`sz`hl l§eshc n§xsshc xcm xcs h`chy acmhyhc]ghna`b `mnhc#

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? Bhhciy§xogh 0

? Bhhciy§xogh

H`c Bhhciyxog `s h`c Axsmyxob mhy Feyn

a: "i:

a1 "i1

a9 "i9

a? " ###

,

eih` m`h a` xcm i` ca§xyl`ogh Taglhc sh`hc# F§xy a1, a9,### l§ass nac maccceog mhc [hy ∓ tx# @s macc ih` h`chn Bhhciyxog h`c ab > ∓, ses`cm m`h Taglhc a`"1 xcm i` n` ` ≨ b c`og nhgy vec @chyhssh#Xn ihl`hi`k lackh Bhhciy§xogh ihsshy mayshllhc tx b§ecchc, sogyh`ihc

`y sa mhy ei`khc Vay`ach

a: "i:|

|a1"

i1|

|a9"

i9|

|a?" ###

xcm ihsogy§acbhc xcs macc axf Bhhciy§xogh n` i` > 1 f §xy allh ` ∇ C:#Mamxyog `ym m`h Txeymcxck t`soghc yhhllhc Taglhc xcm Bhhciy§xoghcm`hshy Feyn h`cmhx`k . i`s axf felkhcmh Axscagnh4 F§xy ya`ecalh Taglhck`i hs c§anl`og th` vhysog`hmhch Bhhciyxog.Mayshllxckhc, h`l

a: "

1|

|a1 " ### "

1 |

|ac xcm a: "

1|

|a1 " ### "

1 |

|ac ∙ 1 "

1|

|1

m`h klh`ogh Tagl ihsogyh`ihc# Nac vhyh`ciay g`hy, `nnhy m`h l`cbh May.shllxck tx ihcxthc# Axskhghcm vec m`hshy Bhhciyxog.Mayshllxck vecyhhllhc Taglhc, bacc nac dhmh Tagl axs mhn @chyvall R: , 1) mxyog kh.cax h`ch Felkh 'a1, a9,###) `mhc`fit`hyhc, eih` `y f §xy ya`ecalh Taglhcπ ∇ Q ∠ R:, 1) n`

π >1|

|a1" ### "

1 |

|ac

ac m`hshy _hllh ab > ∓ f §xy allh b 3 c shthc#

Ihnhybxck ?#1# [as xcs cxc `chyhss`hy, s`cm H`khcsogafhc mhy Felkh'a1, a9,###), hcc nac h`c π txf §all`k xcm klh`ogvhyh`l axs Ω > R:, 1)t`hg xcm a1, a9,### hcszyhoghcm §agl, semass mhy Bhhciyxog mhy a`‐sπ mayshll# Maf §xy n§xsshc `y hysnal bl§ayhc, `h nac axskhghcm vecπ m`h a`‐s hyg§al# [h`l s`og maf §xy macc h`ch Aii`lmxck ficmhc `ym, m`hh`c i`ssoghc mhy Aii`lmxck Ya axs Ih`sz`hl 9#6 §agchl, ihbennhc `ylacksan `hmhy Ihtxk txy Hykemhcghey`h#

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? Bhhciy§xogh 1:

Axskhghcm vec h`chy Tagl π ∇ R:, 1) §xymh nac n` a1 > 1π

m`h ihshTagl a1 ficmhc, hcc mhcc 1

π∇ C §ayh, as allkhnh`c c`og mhy Fall `s#

Mhsgali ihcxt nac a1 >

1

π#N` mhn yhsl`oghc ]h`l mhs Bhhciyxogs nxss nac acsogl`hÕhcm ceog m`hTagl 1

π∙ 1

π mayshllhc, hlogh ca§xyl`og `hmhy `c R:, 1) `s# Mas _oghna

`s `hmhy masshlih4 Bhgyhy i`lmhc, aiyxcmhc, m`h Tagl als c§aogshs a`ihcxthc xcm n` mhn Yhs h`hynaoghc caog mhn _oghna#Xn m`hshc _aogvhygal ellhc `y cxc feynal`s`hyhc#

Mhfic``ec ?#9# Hs sh`

] 4 Ω Ω ] 'π) >

∙ 1π

π > :

: secs

m`h Aii`lmxck, m`h caog dhmhn _ogy` mhy Bhhciyxogmayshllxck mhcYhs ack`i, mhy ceog mxyog m`h h`hyhc Iy§xogh maykhshll hymhc nxss#

Mhfic``ec ?#?# Hs sh` a 4 Ω C

a'π) >

π > :

∓ secsac'π) > a'] c∙1'π))

m`h Aii`lmxck, m`h als [hyh m`h tx §aglhcmhc Beht`hchc ga#

[`y hymhc sz§ahy shghc4 m`h Aii`lmxck ] `s hykem`sog 'hcc nac h`c

zasshcmhs [agysogh`cl`ogbh`snaÕ Z §agl)# Mhy Ihh`s maf §xy `s c`ogkhyamh h`cfaog xcm ihc§e`k h`c zaay H`khcsogafhc, m`h `y ac m`hshy_hllh ihgacmhlc ellhc#_h` `n Felkhcmhc `nnhy π ∇ R:, 1)#

Lhnna ?#=# Hs k`l f § xy allh c ∇ C 4

π >1 |

|a1'π)" ### "

1 |

|ac∙1'π)"

1 |

|ac'π) " ] c'π)#

Ihh`s# F§xy π > : `s a1'π) > ∓ xcm sen` mhy kacth Bhhciyxog > :#F§xy π ∇ ':, 1) ihh`shc `y m`h Axssakh n` @cmxb`ec §xihy c#

F§xy c > 1 `s m`h Axssakh

π >1

a1'π) " ] 'π)>

1

" 1π

∙ 1π

>

1

' 1π

)> π

ehcs`ogl`og agy# [`y b§ecchc `n felkhcmhc alse acchgnhc, mass m`hAxssakh f §xy c k`l# [hcc `y macc th`khc, mass s`h axog f §xy c " 1 k`l,s`cm `y fhy`k#Hs `s alse

π >1 |

|a1'π)

" ### "1 |

|ac'π)

"1 |

|ac"1'π) " ] c"1

'π)

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? Bhhciy§xogh 11

tx ihh`shc# Maih` vhyhcmhc `y m`h @cmxb`ecsveyaxsshtxck xcm sh.thc s`h f §xy π h`c# Hs ilh`i macc tx th`khc, mass

1 |

|a1'π)" ### "

1 |

|ac'π) " ] c'π)>

1 |

|a1'π)" ### "

1 |

|ac'π)"

1 |

|ac"1'π) " ] c"1'π)

k`l# [`y vhyklh`oghc g`hy dht cxy ceog m`h lhthc ]h`liy§xogh xcm hygal.hc se

1 |

|ac'π) " ] c'π)>

1 |

|ac'π)"

1 |

|ac"1'π) " ] c"1'π)#

F§xy ] c'π) > : `s macc ac"1'π) > a'] c'π)) > a':) > ∓# Nac ga g`hyalse axf ih`mhc _h`hc 1

ac'π)#

F§xy ] c'π) > : `s

1

ac"1'π) " ] c"1'π)>

1

a'] c'π)) " ] '] c'π))

>1

1] c'π)

" 1] c'π)

∙ 1] c'π)

>

1

' 1] c'π)

)> ] c'π)#

[`y mhfic`hyhc cxc th` kacttagl`kh G`lfsfxcb`echc q'π) xcm z'π), m`h

ai h`chn c: ∇ C syhck neceec aogshc# zc'π)qc'π)

`s h`ch kxh C§aghyxck

f §xy π, hcc c kyeÕ `s# AxÕhymhn k`i hs h`c zaay H`khcsogafhc mhyFxcb`echc `c Txsannhcsz`hl n` hcml`og lackhc Bhhciy§xoghc, m`h `yhys ihh`shc xcm xcs macc tx Cxth naoghc ellhc#

Mhfic``ec ?#8# N` z∙1'π) > 1, z:'π) > :, q∙1'π) > : xcm q:'π) > 1mhfic`hyhc `y yhbxys`v f §xy allh c ∇ C

zc'π) > ac'π) zc∙1'π) " zc∙9'π) xcm qc'π) > ac'π)qc∙1'π) " qc∙9'π)#

Lhnna ?#6# F § xy allh c ∇ C: k`l

zc∙1'π)qc'π) ∙ zc'π)qc∙1'π) > '∙1)

c

#

Ihh`s# [`y th`khc m`hs `hmhy n` @cmxb`ec §xihy c#@s c > : se felk

z∙1'π)q:'π) ∙ z:'π)q∙1'π) > 1 » 1 ∙ : » : > '∙1):

m`yhb# _h` m`h Axssakh alse f §xy c y`og`k# Axskhghcm mavec th`khc `y dht, mass s`h axog f §xy c"1 k`l, mhcc n` H`cshthc mhy Yhbxys`ecsfeynhlvec zc'π) xcm qc'π) felk

zc'π)qc"1'π) ∙ zc"1'π)qc'π)

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? Bhhciy§xogh 19

> zc'π)'ac"1'π)qc'π) " qc∙1'π)) ∙ 'ac"1'π) zc'π) " zc∙1'π))qc'π)

> zc'π)qc∙1'π) ∙ qc∙1'π)qc'π) > ∙'∙1)c > '∙1)c"1,

eih` s`og ac"1 zc'π)qc'π) hkb§xythc l`hÕ xcm nac `c mhy lhthc Th`lhm`h @cmxb`ecsveyaxsshtxck khcxt ga#

Ihnhybxck ?#;# Xn mas c§aogsh Lhnna tx ihh`shc `s hs zyab`sog,hcc nac m`h hwzl`t`h Feyn mhy hyshc zaay zc'π)‐s xcm qc'π)‐s bhcc#Xn ]h`lh mhs Ihh`shs §xihys`ogl`oghy tx naoghc, sogyh`ihc `y ef acsa ac'π) xcm feynhc h`chc Axsmyxob mhy Feyn ac'] 'π)) nh`s m`yhbtx ac"1 xn# N` m`hshc Vhyh`ciayxckhc gaihc `y

z∙1'π) > 1 q∙1'π) > :

z:'π) > : q:'π) > 1 z1'π) > 1 q1'π) > a1

z9'π) > a9 q9'π) > a9a1 " 1

z?'π) > a?a9 " 1 q?'π) > a?a9a1 " a? " a1#

Nac bacc ca§xyl`og f §xy qc'] 'π)) m`hshlihc Feynhlc vhyhcmhc, hcc nacm`h @cm`ths mhy a`‐s maih` allh xn 1 hyg§eg# _hlihs k`l axog f §xy zc'] 'π))#_e `s txn Ih`sz`hl z?'] 'π)) > a=a? " 1#

Lhnna ?#7# F § xy c ≨ 1 xcm : ≭ ≭ 1 k`l

1 |

|a1'π)" ### "

1 |

|ac∙1'π)"

1 |

|ac'π) " >

zc'π) " zc∙1'π)

qc'π) " qc∙1'π)#

Ihh`s# Axog m`hsh Axssakh ihh`shc `y `hmhy zhy @cmxb`ec §xihy c#F§xy c > 1 felk

1

a1'π) " >

z1'π) " z:'π)

q1'π) " q:'π)m`yhb mxyog H`cshthc#

[`hmhy chgnhc `y ac, mass m`h Axssakh f §xy c y`og`k sh` xcm th`khc m`h

Y`og`kbh` mhy Axssakh f §xy c " 1# Mas gh`Õ, mass `y1 |

|a1'π)" ### "

1 |

|ac'π)"

1 |

|ac"1'π) " >

zc"1'π) " zc'π)

qc"1'π) " qc'π)

th`khc n§xsshc#[h`l ab"1'π) > ab'] 'π)) k`l, l§ass s`og m`h l`cbh _h`h axog als

1 |

|a1'π)"

1 |

|a1'] 'π))" ### "

1 |

|ac'] 'π)) "

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? Bhhciy§xogh 1?

sogyh`ihc, eyaxf nac m`h @cmxb`ecsveyaxsshtxck achcmhc bacc# Nachyg§al

1

a1'π) " zc'] 'π)) " zc∙1'] 'π))

qc'] 'π)) " qc∙1'] 'π))

> zc"1'π) " zc'π)qc"1'π) " qc'π)

,

c`nn axf ih`mhc _h`hc mhc Bhgyhy, nxl`zl`t`hy macc n` ih`mhcChcchyc xcm benn axf

a1' zc"1'π) " zc'π))'qc'] 'π)) " qc∙1'] 'π)))

"' zc'] 'π)) " zc∙1'] 'π)))' zc"1'π) " zc'π))

> 'qc"1'π) " qc'π))'qc'] 'π)) " qc∙1'] 'π)))#

Axsnxl`zl`t`hyhc xcm m`h Klh`ogxck axf m`h ]hynh n` 9, xcm egch axfh`lhc, iy`ck xcs tx mhc felkhcmhc ? Klh`ogxckhc4

a1 zc"1'π)qc'] 'π)) " zc'] 'π)) zc"1'π) > qc"1'π)qc'] 'π)) '1)

a1 zc"1'π)qc∙1'] 'π)) " a1'π) zc'π)qc'] 'π)) '9)

" zc'π) zc'] 'π)) " zc"1'π) zc∙1'] 'π))

> qc"1'π)qc∙1'] 'π)) " qc'π)qc'] 'π))

a1 zc'π)qc∙1'] 'π)) " zc'π) zc∙1'] 'π)) > qc'π) " qc∙1'] 'π))# '?)

[hcc allh ? Klh`ogxckhc agy s`cm, s`cm `y n` mhn Ihh`s fhy`k#[`y ihk`cchc man`, '1) tx th`khc zhy @cmxb`ec §xihy c#F§xy c > 1 gaihc `y

a1 z9'π)q1'] 'π)) " z1'] 'π)) z9'π) > q9'π)q1'] 'π))

a1a9a9 " 1 » a9 > 'a9a1 " 1)a9,

as ca§xyl`og agy `s#Xn m`h Axssakh f §xy c " 1 tx th`khc, hymhc `y m`h @cmxb`ecsveyaxssh.txck f §xy c∙1 xcm c ihcxthc# Xn maih` s`oghytxshllhc, mass m`h Axssakh

f §xy 9 axfh`cacmhy felkhcmh c k`l, th`khc `y mhc @cmxb`ecsacfack ceogf §xy c > 9# M`h Feynhl g`hyf §xy laxh

a1 z?'π)q9'] 'π)) " z9'] 'π)) z?'π) > q?'π)q9'] 'π))

a1'a?a9 " 1)'a?a9 " 1) " a?'a?a9 " 1)

> 'a?a9a1 " a? " a1)'a?a9 " 1)

xcm `s hihcfalls agy# Xn cxc mhc _ogy` vec c ∙ 1 xcm c tx c " 1 txnaoghc, n§xsshc `y

a1 zc"9'π)qc"1'] 'π)) " zc"1'] 'π)) zc"9'π) > qc"9'π)qc"1'] 'π))

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? Bhhciy§xogh 1=

th`khc# H`cshthc mhy Yhbxys`ecsfeynhlc f §xy zc xcm qc l`hfhy g`hy

a1'ac"9 zc"1'π) " zc'π))'ac"9qc'] 'π)) " qc∙1'] 'π)))

"'ac"9 zc'] 'π)) " zc∙1'] 'π)))'ac"9 zc"1'π) " zc'π))

> 'ac"9qc"1'π) " qc'π))'ac"9qc'] 'π)) " qc∙1'] 'π))),

as caog Axsnxl`zl`t`hyhc xcm h`chy bxythc Xnfeynxck se axss`hg4

a9c"9'a1 zc"1'π)qc'] 'π)) " zc'] 'π)) zc"1'π))

"a1 zc'π)qc∙1'] 'π)) " zc∙1'] 'π)) zc'π)

"ac"9'a1 zc"1'π)qc∙1'] 'π)) " a1 zc'π)qc'] 'π))

" zc'π) zc'] 'π)) " zc"1'π) zc∙1'] 'π)))

> a9c"9qc"1'π)qc'] 'π)) " qc'π)qc∙1'] 'π))"ac"9'qc"1'π)qc∙1'] 'π)) " qc'π)qc'] 'π)))#

Cxc s`cm hkhc mhy @cmxb`ecsveyaxsshtxck '1) m`h xchysy`oghchc ]hy.nh klh`og xcm fallhc hk# §Xiy`k ilh`i

ac"9'a1 zc"1'π)qc∙1'] 'π)) " a1 zc'π)qc'] 'π))

" zc'π) zc'] 'π)) " zc"1'π) zc∙1'] 'π)))

> ac"9'qc"1'π)qc∙1'] 'π)) " qc'π)qc'] 'π))),

eyaxs nac mxyog B§xythc vec ac"9 '9) hyg§al# Fhychy `s '?) hyf §xll mxyogm`h @cmxb`ecsveyaxsshtxck '1), m`h da axog agy `s, sefhyc `y mhc @c.mxb`ecssogy` vellt`hghc b§ecchc, hloghy da §aqx`valhc tx '9) `s# [`yn§xsshc alse cxy ceog '9) ihh`shc xcm s`cm fhy`k#[`y ihh`shc '9) n` @cmxb`ec §xihy c# F§xy c > 1 `s macc

a1 z9'π)q:'] 'π)) " a1 z1'π)q1'] 'π)) " z1'π) z1'] 'π)) " z9'π) z:'] 'π))

> q9'π)q:'] 'π)) " q1'π)q1'] 'π))

a1a9 " a1a9 " 1 > a1a9 " 1 " a1a9

ehcl`ogl`og hyf §xll xcm f §xy c > 9 `s

a1 z?'π)q1'] 'π)) " a1 z9'π)q9'] 'π)) " z9'π) z9'] 'π)) " z?'π) z1'] 'π))

> q?'π)q1'] 'π)) " q9'π)q9'] 'π))

a1'a?a9 " 1)a9 " a1a9'a?a9 " 1) " a9a? " a?a9 " 1

> 'a?a9a1 " a? " a1)a9 " 'a9a1 " 1)'a?a9 " 1)

a?a99a1 " a9a1 " a?a99a1 " a9a1 " a?a9 " a?a9 " 1

> a?a99a1 " a?a9 " a9a1 " a?a99a1 " a9a1 " a?a9 " 1

hihcfalls agy# Hs ilh`i alse mhy @cmxb`ecssogy` axf c"1, ih` mhn nac

`hmhy §agcl`og veykhg `h i`sghy# Nac sht m`h Yhbxys`ecsklh`ogxckhc

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? Bhhciy§xogh 18

h`c xcm feyn axf ih`mhc _h`hc se xn, mass nac m`h @cmxb`ecsveyaxs.shtxck ihcxthc bacc# Hs k`l

a1 zc"9'π)qc'] 'π)) " a1 zc"1'π)qc"1'] 'π)) " zc"1'π) zc"1'] 'π)) " zc"9'π) zc'] 'π))

> qc"9'π)qc'] 'π)) " qc"1'π)qc"1'] 'π))

ac"9ac"1'a1 zc"1'π)qc∙1'] 'π)) " a1 zc'π)qc'] 'π))

" zc'π) zc'] 'π)) " zc"1'π) zc∙1'] 'π)))

" a1 zc'π)qc∙9'] 'π)) " a1 zc∙1'π)qc∙1'] 'π))

" zc∙1'π) zc∙1'] 'π)) " zc'π) zc∙9'] 'π))

" ac"9'a1' zc"1'π)qc∙9'] 'π)) " zc∙1'π)qc'] 'π)))

" zc∙1'π) zc'] 'π)) " zc"1'π) zc∙9'] 'π)))

" ac"1'a1' zc'π)qc∙1'] 'π)) " zc'π)qc∙1'] 'π)))

" zc'π) zc∙1'] 'π)) " zc'π) zc∙1'] 'π)))

> ac"9ac"1qc"1'π)qc∙1'] 'π)) " qc'π)qc'] 'π))

"qc'π)qc∙9'] 'π)) " qc∙1'π)qc∙1'] 'π))

" ac"9'qc"1'π)qc∙9'] 'π)) " qc∙1'π)qc'] 'π)))

" ac"1'qc'π)qc∙1'] 'π)) " qc'π)qc∙1'] 'π)))#

[`hmhy s`cm m`h xchysy`oghchc ]hynh caog @cmxb`ecsveyaxsshtxck klh`og#Hs ilh`i h`ch chxh Feynhl §xiy`k, m`h nac axf ac"1. xcm ac"9.]hynh xc.hyh`lhc bacc, emxyog m`hsh ih`mhc Klh`ogxckhc hcshghc4

a1' zc"1'π)qc∙9'] 'π)) " zc∙1'π)qc'] 'π))) '=)

" zc∙1'π) zc'] 'π)) " zc"1'π) zc∙9'] 'π))

> qc"1'π)qc∙9'] 'π)) " qc∙1'π)qc'] 'π))

a1 zc'π)qc∙1'] 'π)) " zc'π) zc∙1'] 'π)) > qc'π)qc∙1'] 'π))# '8)

[§agyhcm '8) mxyog m`h @cmxb`ecsveyaxsshtxck '1) k`l, n§xsshc `y '=)mxyog 'm`h veyhys lhth) @cmxb`ec th`khc#_h` alse `hmhy c > 1, macc k`l

a1' z9'π)q∙1'] 'π)) " z:'π)q1'] 'π))) " z:'π) z1'] 'π)) " z9'π) z∙1'] 'π))

> q9'π)q∙1'] 'π)) " q:'π)q1'] 'π))

a9 > a9#

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? Bhhciy§xogh 16

F§xy c > 9 `s

a1' z?'π)q:'] 'π)) " z1'π)q9'] 'π))) " z1'π) z9'] 'π)) " z?'π) z:'] 'π))

> q?'π)q:'] 'π)) " q1'π)q9'] 'π))

a1''a?a9 " 1) " a?a9 " 1) " a? > a?a9a1 " a? " a1 " a1'a?a9 " 1)

hihcfalls hyf §xll# Acalekh Veykhghcsh`sh ih`n _ogy` axf c " 1 l`hfhymacc sogl`hÕl`og

qc'π)qc∙1'] 'π)) > a1 zc'π)qc∙1'] 'π)) " zc'π) zc∙1'] 'π)),

as caog @cmxb`ecsveyaxsshtxck '1) k`l, alse `s m`h Axssakh ih`hshc#

Xn mhc Hykemhcsat axf Bhhciy§xogh achcmhc tx b§ecchc, nxss ]

hykem`sog sh`c# [hcc nac als [agysogh`cl`ogbh`snaÕ mas Lhihcskxh.NaÕβ §agl, sogh`hy m`hs allhym`cks sogec ac mhy NaÕyhxh, mhcc `c m`hshnFall k`i hs h`ch Nhckh A ∇ R:, 1), f §xy m`h β'] ∙1'A)) > β'A) k`l#§Xihylhkhc `y xcs hysnal, `h ] ∙1 xcm allkhnh`c ] ∙c axsshghc# Maf §xyihcxthc `y felkhcmh Mhfic``ec4

] ∙cRw, p) > rπ ∇ R:, 1) 4 w ≭ ] cπ < p~ f §xy : ≭ w < p ≭ 1#

Hs hyk`i s`og

] ∙1Rw, p) >∓

b>1

1

b " p,

1

b " w

,

] ∙cRw, p) >∓

b1>1

###∓

bc>1

1|

|b1" ### "

1 |

|bc " w,

1|

|b1" ### "

1 |

|bc " p

f §xy khyamh c xcm

] ∙cRw, p) >∓

b1>1

###∓

bc>1

1|

|b1" ### "

1 |

|bc " p,

1|

|b1" ### "

1 |

|bc " w

f §xy xckhyamh c#Txy§xob txy Hykem`t`§a4 ] `s c`og hykem`sog xchy β#

Ihh`s# [§aglh A > R:,19), macc k`l β'A) >

19 xcm n`

] ∙1'A) >∓b>1

1

b " 1%9,

1

b

hyk`i s`og β'] ∙1'A)) >

∓b>1

1

b∙

1

b " 1%9#

Acsa m`hsh _xnnh cxc hwab tx ihyhogchc, sog§athc `y 1b"1%9

f §xy

b ≨ 8 n` 1b

ai xcm hygalhc se

β'] ∙1'A)) 3=

b>1

1

b∙

1

b " 1%93

1

9#

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? Bhhciy§xogh 1;

Hs nxss alse h`c acmhyhs [agysogh`cl`ogbh snaÕ ihcxt hymhc# [`ymhfic`hyhc maghy mas KaxÕ.NaÕ4

Mhfic``ec ?#0# Hs sh`

Z 'A) >1

lek9

A

1

1 " wmw f §xy A ∇ IR:, 1)#

[`y nh`chc i`s txn Hcmh mhs Baz`hls shs mas KaxÕ.NaÕ, sefhyc vecZ khyhmh `ym#

_at ?#1:# ] `s naÕyhx xchy Z #

Ihh`s# [`y b§ecchc Z '] ∙1'A)) > Z 'A) f §xy allh A ∇ IR:, 1) ihh`shc,`cmhn `y m`h Axssakh f §xy allh Hlhnhch h`chs Hythxkhcmhcspshns th`khc#

[`y vhyhcmhc g`hy rR:, a) 4 : < a ≭ 1~ xcm hygalhc n` ] ∙1 `h h`hyeihc

Z '] ∙1R:, a)) >1

lek9

∓b>1

1b

1b"a

1

1 " wmw#

M`h `c mhy _xnnh axfaxoghcmhc @chkyalh bacc nac h`cfaog l§eshc4 1b

1b"a

1

1 " wmw > lek

1 "

1

b

∙ lek

1 "

1

b " a

> lek1 "a

b∙ lek1 "

a

b " 1#

Xn maih` m`h lhth Klh`ogxck tx th`khc, ihcxt nac lek a ∙ lek i >lek'a

i), hcmh axf ih`mhc _h`hc m`h Hwzechc`alfxcb`ec ac xcm hyg§al

'1 " 1b

)

'1 " 1b"a

)>

'1 " ab

)

'1 " ab"1

),

as mxyog Axsnxl`zl`t`hyhc felk# Hs `s

lek1 "a

b∙ lek1 "

a

b " 1 >

ab

a

b"1

1

1 " w

mw

xcm1

lek9

∓b>1

ab

ab"1

1

1 " wmw >

1

lek9

a:

1

1 " wmw > Z 'R:, a))#

_at ?#11# M`h Ϗ.Alkhiya mhy `cvay`achc Hyh`kc`ssh

@ 4>

A ∇ A 4 ] ∙1'A) > A

`s Z

.y`v`al#

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? Bhhciy§xogh 17

Ihh`s# [`y mhfic`hyhc hysnal f §xy a1,###,ac ∇ C 4

∆c 4> ∆a1,###,ac 4> rπ ∇ R:, 1) 4 a1'π) > a1,###,ac'π) > ac~

xcm

χ') 4> χa1,###,ac') 4>1|

|a1" ### "

1 |

|ac∙1"

1 |

|ac " #

[`y khghc g`hy dht alse c`og nhgy vec h`chy Tagl π axs xcm becsyx`hyhcman` macc m`h a`‐s, secmhyc khghc vec fhshc [hyhc a1,###,ac axs#[h`l ∆c mas I`lm vec R:, 1) xchy χ `s, k`l β'∆c) > ±'χ'1) ∙ χ':)),eih` mey " shg, falls c khyamh `s xcm ∙, hcc c xckhyamh `s# F§xy: ≭ w < p ≭ 1 felk n` mhc shlihc Veyth`oghc `h ih` β'∆c) 4

β'] ∙c

Rw, p) ∠ ∆c) > ±'χ'p) ∙ χ'w)),

as m`yhb axs mhc Bhhciy§xoghc χ':), χ'1) xcm mhc Bhhciy§xoghc `cmhy Vhyh`c`kxck vec ] ∙c axf _h`h 1; felk# @cskhsan gaihc `y man`

β'] ∙cRw, p)|∆c) >χ'p) ∙ χ'w)

χ'1) ∙ χ':)#

Mhfic`hy nac zc xcm qc f §xy m`h a1,###,ac acalek tx mhc zc'π) xcm qc'π),se hyg§al nac acalek tx Lhnna ?#7

χc

') >zc " zc∙1

qc " qc∙1,

as `y vhyhcmhc, xn

β'] ∙cRw, p)|∆c) >

zc " pzc∙1

qc " pqc∙1∙

zc " wzc∙1

qc " wqc∙1 zc " zc∙1

qc " qc∙1∙

zc

qc

>

' zc " pzc∙1)'qc " wqc∙1) ∙ ' zc " wzc∙1)'qc " pqc∙1)

'qc " pqc∙1)'qc " wqc∙1)

qc' zc " zc∙1) ∙ zc'qc " qc∙1)qc'qc " qc∙1)

> qc'qc " qc∙1)p' zc∙1qc ∙ zcqc∙1) " w' zcqc∙1 ∙ zc∙1qc)

' zc∙1qc ∙ zcqc∙1)'qc " wqc∙1)'qc " pqc∙1)

> 'p ∙ w)qc'qc " qc∙1)

'qc " wqc∙1)'qc " pqc∙1)

tx hygalhc# [h`l g`hy dht

qc'qc " qc∙1)

'qc " wqc∙1)'qc " pqc∙1)

≨qc'qc " qc∙1)

'qc " qc∙1)9

>qc

'qc " qc∙1)

≨1

9

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? Bhhciy§xogh 10

xcm

qc'qc " qc∙1)

'qc " wqc∙1)'qc " pqc∙1) ≭

qc'qc " qc∙1)

q9c >

qc " qc∙1

qc ≭ 9

khlhc, `s mhy Fabey `nnhy t`soghc 19

xcm 9# Hs felk

1

9β'A) ≭ β'] ∙c'A)|∆c) ≭ 9β'A)

hys cxy f §xy @chyvallh A > Rw, p), aihy n` mhy §Xihylhkxck, mass mas kacthaxog f §xy h`hyh @chyvallh fxcb`ec`hy xcm m`h Vhyh`c`kxck macc hihc.falls m`h Xcklh`ogxckhc hyf §xll, f §xy allh Hlhnhch axs IR:, 1)#[h`l m`h M`ogh mhs KaxÕ.NaÕhs cxy [hyh t`soghc 1

9lek9xcm 1

lek9ac.

c`nn, k`l

β'A)

9lek9≭ Z 'A) ≭

β'A)

lek9f §xy A ∇ IR:, 1)#

N` mhc ih`mhc Mezzhl.Xcklh`ogxckhc sogy§acbhc `y dht Z '] ∙cA|∆c)h`c# Axs mhc ih`mhc Xcklh`ogxckhc

Z '] ∙c'A) ∠ ∆c)

Z '∆c)≨

β'] ∙c'A) ∠ ∆c)lek9

β'∆c)9lek9>

1

9β'] ∙c'A)|∆c) ≨

1

=β'A)

xcmZ '] ∙c'A) ∠ ∆c)

Z '∆c)≭

β'] ∙c'A) ∠ ∆c)9lek9

β'∆c)lek9> 9β'] ∙c'A)|∆c) ≭ =β'A)

felk1

=Z 'A) ≭ Z '] ∙cA|∆c) ≭ =Z 'A)#

_h` dht A h`c Hyh`kc`s n` Z 'A) 3 : xcm ] ∙1'A) > A# Macc felk n`mhy l`cbhc _h`h mhy ei`khc Xcklh`ogxck 1

=Z 'A) ≭ Z 'A|∆c) xcm n` mhy

yhoghc _h`h 1=

Z '∆c) ≭ Z '∆c|A), h`l axs ] ∙1'A) > A `cmxb`v f §xy allh

c ∇ C ] ∙c

'A) > A felk#Man` hyk`i s`og1

=Z 'H ) ≭ Z 'H |A)

f §xy Hlhnhch H h`chs Hythxkhcmhcspshns vec IR:, 1)# [h`l m`hsh Xcklh`.ogxck f §xy allh H ∇ IR:, 1) k`l, nxss s`h `csihsecmhyh axog f §xy H > Ao

khlhc, as tx1

=Z 'Ao) ≭

Z 'A ∠ Ao)

Z 'A)> :

f §xgy# Hyke `s Z 'Ao) > : xcm Z 'A) > 1#

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= Achcmxck mhs Hyekmhcsaths 9:

= Achcmxck mhs Hyekmhcsaths

N` ?#1: xcm ?#11 `sshc `y dht, mass ] hykem`sog `s# [as f §xy Axssakhcl`hfhy cxc mhy Hykemhcsat vec I`ybge5Xn `gc §xihygaxz achcmhc tx b§ecchc, iyaxoghc `y h`ch nhssiayh Ai.i`lmxck f ∇ L1'Z )# N` mhy b§ecchc `y macc axf m`h Z .fas s`oghyh Bec.vhykhct

l`nc∓

1

c

c∙1b>:

f '] b'π)) >

1:

f 'π)

1 " πmπ

sogl`hÕhc#

Ihnhybxck =#1# M`h Z .fas s`oghyh Becvhykhct `nzl`t`hy axog β.fas s`.oghyh Becvhykhct, h`l Z xcm β m`h shlihc Cxllnhckhc gaihc#

Tx ihaoghc `s ceog, mass nac ih`sz`hlsh`sh n` f > a'π) f §xy mhc b.hc_xnnacmhc

f '] b'π)) > a'] b'π)) > ab'π)

hyg§al# [`y fackhc khcax n` m`hshy Fxcb`ec ac xcm hygalhc mas hyshvec mhc myh` vhyszyeoghchc Hykhic`sshc#

'`) Hs k`l Z .fas s`oghy

l`nc∓

1

c

c

b>1ab'π) >

1

lek9 1

:

a1'π)

1 " πmπ ≨

1

9lek9 1

:

1

π∙ 1 mπ > ∓,

eih` `y 1 " π mxyog 9 xcm 1π

mxyog 1π

∙ 1 aikhsog§at gaihc#Mas ay`gnh`sogh N`hl mhy ab‐s m`vhyk`hy alse Z .fas s`oghy khkhcXchcml`og#

'``) Als c§aogshs chgnhc `y xcs f > 1ra1'π)>n~ vey xcm hygalhc

l`nc∓

1

c

cb>1

1rab'π)>n~ >1

lek9

1:

1r 1π>n~

1

1 " πmπ,

eih` 1π

> n π ∇ ' 1n"1

, 1n

^ `s# Mamxyog `s m`h yhogh _h`h

>1

lek9

1n

1n"1

1

1 " πmπ >

1

lek9

lek'1 " w)

1n

1n"1

,

as s`og mxyog Lekay`gnhckhshth xcm khsog`obhs Hyh`hyc als

>1

lek9lek

1 " 1

n

1 " 1n"1

>

1

lek9lek

'n " 1)9

n'n " 9)

sogyh`ihc l§ass# M`hs `s m`h yhla`vh G§axfikbh` mhy Tagl n `c mhy

Bhhciyxogmayshllxck#

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= Achcmxck mhs Hyekmhcsaths 91

F§xy n > 1 hyg§al nac h`ch G§axfikbh` vec ha :, =18# Cxc matxh`ch h`cfaogh Fyakh4 [`h g§axfik y` m`h 1 ac mhy hyshc _hllh mhy

Bhhciyxogmayshllxck axf5M`h [agysogh`cl`ogbh` maf §xy `s shlisvhys§acml`og

β'rπ 4

1

π

> 1~) > β''1%9, 1)) >

1

9#

Cxc y` m`h 1 ac hyshy _hllh alse g§axfikhy axf als mxyogsogc`l`og#[`y `sshc maghy, mass m`h a`‐s c`og klh`ogvhyh`l s`cm#N` mhn saybhc Khsht mhy kyeÕhc Taglhc g§ah nac g`hy alse c`ogsacfackhc b§ecchc#

'```) Als lhths ihyaoghc `y f > lek a1'π)# G`hy ihsak mhy Hykemhc.

sat, mass

l`nc∓

1

c

cb>1

lek ab'π) >1

lek9

1:

lek a1'π)

1 " πmπ

k`l# F§xy m`h yhogh _h`h ihbennhc `y n` mhn @chkyal 1%b1%'b"1)

11"π

mπ `h eihc

1

lek9

∓b>1

1b

1b"1

lek b

1 " πmπ >

1

lek9

∓b>1

lek b lek'b " 1)9

b'b " 9)#

[hcmhc `y acsogl`hÕhcm axf ih`mhc _h`hc m`h Hwzechc`alfxcb`ecac, se hyk`i s`og l`cbs

l`nc∓

'hcb>1 lek ab'π))

1c > l`n

c∓'a1'π) » ### » ac'π))

1c ,

alse mhy Kyhcthy mhs khenhy`soghc N`hls mhy a1'π),###,ac'π)#Yhogs gaihc `y n`

h∓

b>1 lek b lek'b"1)9

b'b"9)

1lek 9

>∓b>1

'b " 1)9

b'b " 9)

lek blek 9

h`ch yhhllh Tagl# Xn tx th`khc, mass mhy Axsmyxob as§aogl`og bec.

vhyk`hy, sog§athc `y mas xyszy§xckl`ogh @chkyal ai4 1:

lek a1'π)

1 " πmπ ≭

1:

lek1

πmπ >

π " π lek

1

π

1

:

< ∓,

eih` nac f §xy π : caog L‐Gesz`al th`khc bacc, mass π lek 1π

khkhc : becvhyk`hy#M`h yhhllh Tagl `s ihbacc als Bg`cog`ch.Becsach xcm ihy§akha 9, 678#Mas khenhy`sogh N`hl mhy ab‐s becvhyk`hy alse fas s`oghy khkhcm`hsh Becsach#

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L`hyaxy 99

L`hyaxy

RI`l68^ Zay`ob I`ll`ckslhp# Hykem`o ]gheyp acm @cfeyna`ec # Og`oake,1068#

RBlh:7^ Aog`n Blhcbh# [agysogh`cl`ogbh`sghey`h # Na`ct, 9::7#

RNH11^ ]genas [aym xcm Nacfyhm H`cs`hmlhy# Hykem`o ]gheyp # T§xy`og,Cey`og, 9:11#

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Hyblíyxck txy Iaoghleyayih`

@og vhys`oghyh, mass `og m`h Ayih` shlissícm`k ackhfhy`k, c`og acmhyh``k füyZyüfxcksthobh veykhlhk, allh ihcxthc Qxhllhc xcm G`lfsn`hl ackhkhihc, se`höyl`ogh xcm s`cckhníÕh T`ah khbhccth`ogch gaih#

Gaccevhy, UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU