Знакомство с эволюционной генетикой (Гаевский)
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khhl\_lkl\_ggh jZ\gh • QZklhlZ \klj_qZ_fhklb Zee_ey Lm - p(Lm) jZ\gZ p(Ln) - 1200/1460 =0.822.
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p(Lm) = p(LmLm) + 0.5 p(LmLn) , |
(1) |
Z qZklhlZ Zee_ey Ln dZd p(Ln) = p(LnLn) + 0.5 p(LmLn beb p(Ln) = 1-p(Lm).
Ijh^he`Zy jZ[hlm k ij_^eh`_gguf \ur_ ijbf_jhf ihemqZ_f p(Lm) = 0.030+0.296/2 = 0.178; p(Ln qlh kh\iZ^Z_l k ihemq_ggufb \ur_ agZq_gbyfb
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Qbkeh Zee_e_c \ ehdmk_ |
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eZ Zee_e_c \ h^ghf ehdmk_
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Ng = n + [n • (n - 1)/2], |
(3) |
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polimorphyzm).
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Ke_^m_l h[jZlblv \gbfZgb_ gZ lh qlh ihebfhjnghklv ebrv hlqZklb hljZ`Z_l ]_g_lbq_kdh_ jZaghh[jZab_ hkh[_c \ ihimeypbb < jZ\ghc kl_i_gb ihebfhjnguf hdZ- au\Z_lky ehdmk k ^\mfy b iylvx Zee_eyfb B wlh \ kblmZpbb ijb dhlhjhc kh]eZkgh k^_-
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eZgghfm \ur_ \u\h^m qbkeh \ZjbZglh\ ]_ghlbih\ ijh]j_kkb\gh \hajZklZ_l k m\_ebq_-
gb_f qbkeZ Zee_e_c
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^hey ]_l_jhab]hl \ ihimeypbb JZkq_l \_ebqbgu ]_l_jhab]hlghklb G ihimeypbb ijh\h-
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H = |
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Hi |
(4) |
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>hihegbl_evguc bgl_j_k fh`_l ij_^klZ\eylv kj_^gyy ]_l_jhab]hlghklv kj_^b
ihebfhjnguo ehdmkh\ Np:
H p = |
∑ |
Hi |
(5) |
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N p |
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H[gZjm`_gbx ]_l_jhab]hl gZ hkgh\_ ZgZebaZ n_ghlbih\ f_rZ_l kihkh[ghklv h^gh]h Zee_ey ^hfbgbjh\Zlv gZ^ ^jm]bf Kms_kl\m_l ijb_f hp_gdb h`b^Z_fhc ]_l_jh- ab]hlghklb Gh`b^ gZ hkgh\_ l_hj_lbq_kdbo ij_^ihkuehd ihimeypbhgghc ]_g_lbdb <_- ebqbgm Gh`b^ dhgdj_lgh]h ehdmkZ hij_^_eyxl ih qZklhlZf _]h Zee_e_c ?keb \ ehdmk_ fh]ml ijbkmlkl\h\Zlv iZju khklZ\e_ggu_ ba n Zee_e_c k qZklhlZfb I1, f2, f3, .. fn lh ijb \uiheg_gbb mkeh\by kemqZcgh]h kdj_sb\Zgby h`b^Z_fu_ gZ hkgh\Zgbb khhlghr_- gby OZj^b <Zcg[_j]Z qZklhlu ]hfhab]hl \ ihimeypbb jZ\gu d\Z^jZlZf qZklhl Zee_e_c (f1)2, (f2)2, (f3)2,.. (fn)2 LZd dZd kmffZ qZklhl ]hfh b ]_l_jhab]hlguo ]_ghlbih\ jZ\gZ _^bgbp_ h`b^Z_fZy ]_l_jhab]hlghklv ih wlhfm ehdmkm [m^_l jZ\gZ
Gh`b^ = 1 - [(f1)2 + (f2)2 + (f3)2 +..+ (fn)2] . (6)
Kj_^gxx h`b^Z_fmx ]_l_jhab]hlghklv ihimeypbb ih \k_f bamq_gguf ehdmkZf eb[h ih ]jmii_ ihebfhjnguo ehdmkh\ gZoh^yl ZgZeh]bqgh kj_^g_c gZ[ex^Z_fhc ]_l_jhab]hl- ghklb mjZ\g_gby b
Hij_^_ebf dZd aZ\bkbl Gh`b^ h^gh]h ehdmkZ hl qbkeZ Zee_e_c b hl khhlghr_gby bo qZklhl G_ljm^gh ihdZaZlv qlh fZdkbfZevgZy \_ebqbgZ H h`b^max [m^_l ^hklb]gmlZ ijb
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H h`b^max = 1 − |
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FZdkbfZevgZy h`b^Z_fZy ]_l_jhab]hlghklv H h`b^max |
aZ\bkbl hl qbkeZ Zee_e_c Q b |
ij_^klZ\e_gZ ^bkdj_lgufb \_ebqbgZfb \ bgl_j\Ze_ hl ^h
>ey ihebfhjnguo ehdmkh\ dh]^Z qZklhlu [hevrbgkl\Z Zee_e_c g_ ba\_klgu b lj_[m_lky hij_^_eblv \_ebqbgm Gh`b^ fh`gh h^gm ba ba\_klguo qZklhl k^_eZlv g_aZ- \bkbfhc beb³\_^ms_c´b aZ^Z\Zlv agZq_gby __ qZklhluS\ bgl_j\Ze_ hl ^h Imklv
8
qZklhlu hklZevguo ©g_\_^msboª Zee_e_c [m^ml h^bgZdh\ufb Lh]^Z dZ`^uc ba gbo [m^_l bf_lv qZklhlm jZ\gmx²p)/(n—1).
< khhl\_lkl\bb k \ujZ`_gb_f \_ebqbgZ Gh`b^ fh`_l [ulv aZibkZgZ ke_^mx-
sbf h[jZahf |
|
Gh`b^ = 1 - ^j2 + (n - 1) • [(1 - p)/(n - 1)]2} |
(8) |
beb Gh`b^ = [n/(1- n)] • p2 + [2/(n - 1)] • p + (n - 2)/(n - 1) . |
(9) |
< mjZ\g_gbb \_ebqbgZ Gh`b^ baf_gy_lky hl gmey j→ ^h agZq_gbc H h`b^max ijb
\u[jZgghf agZq_gbb n.
Dh]^Z agZq_gby n b G ba\_klgu ba mjZ\g_gbc b fh`gh hij_^_eblv qZklhlm
³\_^ms_]h´Zee_ey |
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p = |
1 |
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− |
1 |
− |
H × n |
n |
+ 1 |
1 |
(10) |
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n |
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n − 1 |
Ihebfhjnghklv b ]_l_jhab]hlghklv m Phoronopsis viridis
Ijhbeexkljbjm_f \ur_kdZaZggh_ gZ dhgdj_lghf ijbf_j_ < dZq_kl\_ bkoh^guo
\havf_f ^Zggu_ ih hp_gd_ ihebfhjnghklb b ]_l_jhab]hlghklb ihimeypbb fhjkdh]h
q_j\y Phoronopsis viridis > @ k^_eZgghc gZ hkgh\_ we_dljhnhj_lbq_kdh]h ZgZebaZ
[_edh\ ehdmkh\ <u[hjdZ khklZ\beZ hkh[_c < lZ[e \g_k_gu lhevdh qZklhlu
Zee_e_c ihebfhjnguo ehdmkh\
:gZeba lZ[e ihdZau\Z_l qlh ihebfhjnghklv ihimeypbb [_a mq_lZ ^hihegb-
l_evgh]h djbl_jby khklZ\ey_l J Ihke_ \\_^_gby djbl_jby ihebfhjngh-
klb jZ\gh]h qbkeh ihebfhjnguo ehdmkh\ khdjZsZ_lky ^h Z ihebfhjnghklv
klZgh\blky jZ\ghc J0.95 = 11/39 = 0.282.
Kj_^gb_ \_ebqbgu gZ[ex^Z_fhc b h`b^Z_fhc ]_l_jhab]hlghklb \dexqZy fh-
ghfhjnguo ehdmkh\ jZ\gu khhl\_lkl\_ggh
GgZ[e = 2.794/39 = 0.072 ; Gh`b^ >ey qZklb ihebfhjnguo ehdmkh\
(Np=27) GgZ[e b Gh`b^ = 3.782/27 = 0.136.
9
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LZ[ebpZ |
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H[gZjm`_ggu_ wdki_jbf_glZevgh qZklhlu Zee_e_c ihebfhjnguo ehdmkh\ m |
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QZklhlu Zee_e_c |
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i i |
1 |
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GgZ[e |
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1 |
0.995 |
0.005 |
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2 |
0.009 |
0.066 |
0.882 |
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0.005 |
0.024 |
0.160 |
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3 |
0.472 |
0.528 |
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0.224 |
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4 |
0.008 |
0.992 |
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5 |
0.076 |
0.924 |
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6 |
0.483 |
0.396 |
0.122 |
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0.443 |
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0.596 |
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7 |
0.010 |
0.979 |
0.012 |
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0.025 |
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8 |
0.010 |
0.990 |
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9 |
0.986 |
0.014 |
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0.028 |
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10 |
0.005 |
0.995 |
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0.010 |
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11 |
0.040 |
0.915 |
0.017 |
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0.011 |
0.011 |
0.006 |
0.159 |
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12 |
0.043 |
0.900 |
0.057 |
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0.130 |
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0.996 |
0.004 |
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0.008 |
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14 |
0.005 |
0.978 |
0.016 |
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0.043 |
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15 |
0.992 |
0.008 |
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16 |
0.038 |
0.962 |
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0.014 |
0.986 |
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0.004 |
0.551 |
0.326 |
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0.542 |
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0.008 |
0.987 |
0.004 |
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20 |
0.979 |
0.021 |
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0.042 |
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21 |
0.017 |
0.824 |
0.159 |
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0.125 |
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0.296 |
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0.992 |
0.008 |
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0.017 |
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0.017 |
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23 |
0.955 |
0.005 |
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0.010 |
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24 |
0.159 |
0.827 |
0.013 |
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0.221 |
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0.290 |
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25 |
0.038 |
0.874 |
0.071 |
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0.017 |
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0.185 |
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0.229 |
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26 |
0.929 |
0.071 |
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0.000 |
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27 |
0.008 |
0.004 |
0.962 |
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0.013 |
0.013 |
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0.076 |
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KmffZ |
2.794 |
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3.782 |
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< ebl_jZlmj_ bf__lky ^hklZlhqgh k\_^_gbc h \_ebqbgZo ihebfhjnghklb b ]_l_jh- |
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ab]hlghklb jZaebqguo ihimeypbc H^gZ ba k\h^hd ij_^klZ\e_gZ \ lZ[e [1]. |
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Kj_^- |
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; _ k i h a \ h g h q g u _
Drosophila |
28 |
24 |
0.529 |
0.150 |
0.284 |
Hku |
6 |
15 |
0.243 |
0.062 |
0.255 |
>jm]b_ gZk_dh- |
4 |
18 |
0.531 |
0.151 |
0.284 |
fu_ |
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14 |
23 |
0.439 |
0.124 |
0.282 |
GZa_fgu_ mebldb |
5 |
181 |
0.437 |
0.150 |
0.343 |
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I h a \ h g h q g u _ |
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Ju[u |
14 |
21 |
0.306 |
0.078 |
0.255 |
A_fgh\h^gu_ |
11 |
22 |
0.336 |
0.082 |
0.244 |
Ij_kfudZxsb_- |
9 |
21 |
0.231 |
0.047 |
0.203 |
ky |
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Ilbpu |
4 |
19 |
0.145 |
0.042 |
0.290 |
Fe_dhiblZxsb_ |
30 |
28 |
0.206 |
0.051 |
0.248 |
Q_eh\_d |
1 |
71 |
0.282 |
0.067 |
0.238 |
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J Z k l _ g b y |
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KZfhhiuebl_eb |
12 |
15 |
0.231 |
0.033 |
0.143 |
I_j_dj_klghhiu- |
5 |
17 |
0.344 |
0.078 |
0.227 |
ebl_eb |
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K j _ ^ g _ _ i h ] j m i i Z f |
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;_kiha\hghqgu_ |
57 |
22 |
0.469 |
0.134 |
0.286 |
Iha\hghqgu_ |
69 |
30 |
0.251 |
0.061 |
0.243 |
JZkl_gby |
17 |
16 |
0.264 |
0.046 |
0.174 |
GZ bkihevah\Zgb_ djbl_jby ihebfhjnghklb kkuehd g_l
IZjZf_lj hij_^_e_g \ ^hiheg_gb_ d [1].
KijZ\_^eb\ \hijhk dZd bgl_jij_lbjh\Zlv ^hklb]gmluc mjh\_gv jZaghh[jZaby ]_ghlbih\ \ ihimeypbyo jZaebqguo hj]Zgbafh\ ?
Ij_`^_ \k_]h h[jZlbf \gbfZgb_ gZ \_ebqbgm iZjZf_ljZ ihebfhjnghklb WlZ \_ebqbgZ fh`_l hdZaZlvky aZgb`_gghc _keb [ue \\_^_g djbl_jbc ihebfhjnghklb gh ^Z`_ k mq_lhf wlh]h ih \b^bfhfm iheh\bgZ \k_o ehdmkh\ fhghfhjngu
<_ebqbgm ]_l_jhab]hlghklb gZihfgbf gZoh^yl dZd kj_^gxx ih \k_f bkke_^h-
\Zgguf ehdmkZf \dexqZy b l_ dhlhju_ fu kqblZ_f fhghfhjngufb Ihwlhfm kj_^gyy ]_l_jhab]hlghklv ih \k_f ehdmkZf y\gh gb`_ ]_l_jhab]hlghklb dhlhjmx g_kml iheb- fhjngu_ ehdmku
LZd dZd ]_l_jhab]hlghklv G _klv hlghr_gb_ kmffu qZklhl ]_l_jhab]hlguo ]_gh- lbih\6Jd h[s_fm qbkem bamq_gguo ehdmkh\1\dexqZy b fhghfhjngu_+ 6J 1Z ihebfhjnghklv J wlh ^hey ^b b ihebZee_evguo ehdmkh\ Ng) P = 1J 1hlghr_gb_+ 3
= Sg/1Jkhhl\_lkl\m_l kj_^g_c ]_l_jhab]hlghklb m ihebfhjnguo ehdmkh\ G_h[oh^bfh h[jZlblv \gbfZgb_ qlh \\_^_gb_ djbl_jby ihebfhjnghklb mf_gvrZ_l iZjZf_lj J b ih\urZ_l hlghr_gb_ G J < khhl\_lkl\bb k wlbf ihemq_ggu_ agZq_gby kj_^g_c ]_l_jh- ab]hlghklb ihebfhjnguo ehdmkh\ fh]ml hdZaZlvky aZ\ur_ggufb
11
Bkihevamy mjZ\g_gb_ ^ey n = (2 ÷ b \_ebqbgu ]_l_jhab]hlghklb m iheb- fhjnguo ehdmkh\ G J ba lZ[e ihemqZ_f qZklhlu \_^ms_]h Zee_ey lZ[e
LZ[ebpZ
H[t_dl |
G J QZklhlu³\_^ms_]h´Zee_ey j ijb |
|
jZaebqguo agZq_gbyo n |
n=2 n=3 n=4 n=5 n=6
;_kiha\hghqgu_ 0.286 0.827 0.837 0.840 0.841 0.842
Iha\hghqgu_ 0.243 0.858 0.865 0.867 0.868 0.868
JZkl_gby 0.174 0.904 0.906 0.907 0.908 0.908
Q_eh\_d 0.238 0.862 0.868 0.870 0.871 0.871
K mq_lhf \hafh`gh]h aZ\ur_gby mjh\gy ]_l_jhab]hlghklb J agZq_gby j fh]ml lhevdh \hajZklb LZdbf h[jZahf ijb \uy\e_gghf mjh\g_ ihebfhjnbafZ b ]_l_jhab]hl- ghklb \ ij_^_eZo ihebfhjnguo ehdmkh\ ih qZklhl_ ^hfbgbjm_l dZdhc lh h^bg Zee_ev KemqZb dh]^Z Zee_eb ij_^klZ\e_gu \ jZ\guo ijhihjpbyo \klj_qZxlky ^h\hevgh j_^dh Wlh aZdexq_gb_ kh]eZkm_lky k ^Zggufb lZ[e
FZdkbfZevgh \hafh`gu_ mjh\gb ]_l_jhab]hlghklb ihimeypbb
Ijh^he`Zy bkke_^h\Zlv ]_g_lbq_kdh_ jZaghh[jZab_ ihimeypbb fh`gh kjZ\gblv
gZ[ex^Z_fu_ \ _kl_kl\_gguo mkeh\byo b l_hj_lbq_kdb h`b^Z_fu_ ij_^_evgu_ fZdkb- fZevgu_ agZq_gby ]_l_jhab]hlghklb ihimeypbb <ur_ [ueh ihdZaZgh qlh fZdkbfZev- gZy ]_l_jhab]hlghklv hl^_evgh]h ehdmkZ ^hklb]Z_lky ijb jZ\_gkl\_ qZklhl _]h Zee_e_c b aZ\bkbl hl qbkeZ Zee_e_c Ihkdhevdm \ ]_ghlbi_ ihimeypbb _klv fhgh ^b ljb b l ^ Zee_evgu_ ehdmku g_h[oh^bfh agZlv beb hij_^_eblv \ dZdbo khhlghr_gbyo hgb ij_^klZ\e_gu G_kfhljy gZ lh qlh \ ijb\_^_gguo \ur_ ijbf_jZo kj_^gyy ihebfhjn- ghklv qZklh f_gvr_ wlh Z\lhfZlbq_kdb ij_^iheZ]Z_l ^hfbgbjh\Zgb_ fhghZee_ev- guo ehdmkh\ p_e_khh[jZagh jZkkfhljbf b ^jm]b_ \ZjbZglu dh]^Z qbke_ggh ^hfbgb- jmxl ehdmku k ^\mfy lj_fy b ^Z`_ q_lujvfy Zee_eyfb JZa^_ebf \k_ bamq_ggu_ ehdm- ku gZ deZkku ih qbkem \oh^ysbo \ khklZ\ ehdmkZ Zee_e_c >ey hibkZgby qZklhl \klj_- qZ_fhklb jZaebqguo deZkkh\ \ ihimeypbb \hkihevam_fky jZkij_^_e_gb_f ImZkkhgZ:
pn |
= |
λ k |
× e−λ , |
(11) |
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k! |
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]^_ iZjZf_ljNbaf_gy_lky hl ^h +∞ Z λ hl ^h +∞ < gZr_f kemqZ_N^he`_g hij_^_- eylv qbkeh Zee_e_cQ\ ehdmk_ b g_ fh`_l [ulv jZ\_g ihwlhfm \_jhylghklv deZkkZ k h^gbf Zee_e_f [m^_l khhl\_lkl\h\ZlvS1 ijbN bebQ NIZjZf_lj λ aZ^Z_l qbk- eh Zee_e_c \ lhf deZkk_ qZklhlZ dhlhjh]h \ ihimeypbb fZdkbfZevgZ < lZ[e ^Zgu
12
agZq_gby pk ^ey q_luj_o jZaguo khklhygbc ihimeypbb λ b ijb dhlhjuo gZb[he__ qZklh ij_^klZ\e_gu ehdmku k h^gbf ^\mfy lj_fy beb q_lujvfy Zee_eyfb < lZ[e lZd`_ kh^_j`Zlky g_h[oh^bfu_ ^ey jZkq_lh\ agZq_gby fZdkbfZevghc h`b^Z_fhc ]_l_jhab]hlghklb
LZ[ebpZ
QZklhlu \klj_qZ_fhklb deZkkh\ ehdmkh\ k jZaebqguf qbkehf Zee_e_c \ ]_ghlbiZo
ihimeypbc k jZaebqguf jZkij_^_e_gb_f ihebfhjnguo ehdmkh\
k(n) |
<_ebqbgZ pn ijb jZaebqguo agZq_gbyo iZjZ- |
GPD[ |
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f_ljZ λ \ 1 ) |
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Q |
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λ =1 |
λ =2 |
λ =3 |
λ =4 |
|
1 |
2 |
3 |
4 |
5 |
6 |
0(1) |
0.368 |
0.135 |
0.05 |
0.018 |
0 |
1(2) |
0.368 |
0.271 |
0.149 |
0.073 |
0.5 |
2(3) |
0.184 |
0.271 |
0.224 |
0.147 |
0.667 |
3(4) |
0.061 |
0.180 |
0.224 |
0.195 |
0.75 |
4(5) |
0.015 |
0.090 |
0.168 |
0.195 |
0.80 |
5(6) |
0.003 |
0.036 |
0.101 |
0.157 |
0.833 |
6(7) |
0.001 |
0.012 |
0.050 |
0.104 |
0.857 |
7(8) |
0 |
0.003 |
0.022 |
0.060 |
0.875 |
8(9) |
0 |
0.001 |
0.008 |
0.030 |
0.889 |
9(10) |
0 |
0 |
0.003 |
0.013 |
0.9 |
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P |
0.632 |
0.865 |
0.950 |
0.982 |
|
+ PD[ |
0.368 |
0.576 |
0.674 |
0.713 |
|
545 |
|
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|
H/P |
0.582 |
0.666 |
0.709 |
0.726 |
|
Hq_\b^gh ^ey lh]h qlh[u hp_gblv fZdkbfZevgmx ]_l_jhab]hlghklv ihimeypbb
+PD[ \ dZ`^hf ba q_luj_o \ZjbZglh\ g_h[oh^bfh kmffbjh\Zlv ijhba\_^_gby \_jhyl-
545
ghklb \klj_qZ_fhklb deZkkZ gZ \_ebqbgm fZdkbfZevghc h`b^Z_fhc ]_l_jhab]hlghklb
PD[ |
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∑ |
PD[ |
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SN •+ Q |
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(12) |
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GZijbf_j ^ey i_j\h]h \ZjbZglZ
+PD[ =0.368•0+0.368•0.5+0.184•0.667+0.061•0.75+0.015•0.8++0.003•0.833+0.001•0.857
545
=0.368.
AgZq_gby + PD[ ^ey hklZevguo \ZjbZglh\ ijb\_^_gu \ lZ[e <b^gh qlh h`b^Z_-
545
fu_ fZdkbfZevgu_ agZq_gby ]_l_jhab]hlghklb ihimeypbb agZqbl_evgh ij_\hkoh^yl __ j_Zevgu_ \_ebqbgu lZ[e >ey fhjkdh]h q_j\y Phoronopsis viridis lZ[e oZjZdl_j jZkij_^_e_gby bamq_gguo ehdmkh\ ih deZkkZf ihdZaZg gZ jbk JZkq_l fZdkbfZev-
13
ghc h`b^Z_fhc ]_l_jhab]hlghklb ijh\_^_gguc ih mjZ\g_gbx ihdZaZe qlh __ \_- |
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ebqbgZ khklZ\ey_l lh]^Z dZd gZ[ex^Z_fZy ]_l_jhab]hlghklv jZ\gZ |
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3KRURQRSVLV YLULGLV |
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÷ |
λ = 1 |
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fhklb |
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qZ |
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\klj |
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QZklhlZ |
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Qbkeh Zee_e_c \ ehdmk_
Jbk QZklhlu deZkkh\ ehdmkh\ k jZaebqguf qbkehf Zee_e_c m Phoronopsis viridis.
>ey kjZ\g_gby ihdZaZgh jZkij_^_e_gb_ ImZkkhgZ ijb λ =1
H[sbc \u\h^ ba ij_^klZ\e_gguo jZkkm`^_gbc b jZkq_lh\ k\h^blky d lhfm qlh ijbjh^gu_ ihimeypbb ^Ze_dh g_ iheghklvx j_Zebamxl k\h_ ihl_gpbZevgh_ ]_g_lbq_- kdh_ jZaghh[jZab_ ;hevrbgkl\h ehdmkh\ ih \b^bfhfm fhghfhjngu Z \ ihebfhjn- guo ehdmkZo ij_bfms_kl\hf ihevam_lky h^bg j_`_ ^\Z lbiZ Zee_e_c
Q:KLHLU :EE?E?C B Q:KLHLU =?GHLBIH< < IHDHE?GBYO JH>BL?E?C B BO IHLHFDH<
:mlhkhfgu_ ijbagZdb
JZkkfhljbf dZd gZke_^mxlky Zee_eb h^gh]h Zmlhkhfgh]h ehdmkZ \ iZgfbdlbq_- kdhc ihimeypbb ijb hlkmlkl\bb ^_ckl\by w\hexpbhgguo nZdlhjh\ fmlZpbb fb]jZpbb hl[hj Ih^ iZgfbdkb_c ihgbfZxl k\h[h^gh_ hkgh\Zggh_ gZ kemqZcghf khq_lZgbb \k_o lbih\ ]Zf_l kdj_sb\Zgb_ jZaghiheuo hkh[_c b i_j_dj_klghhieh^hl\hjy_fuo hj]Zgbafh\ \ ij_^_eZo ihimeypbb beb ^jm]hc \gmljb\b^h\hc ]jmiiu hj]Zgbafh\ IZg- fbdkby \Z`gZ ^ey fh^_ebjh\Zgby ]_g_lbq_kdbo kblmZpbc gh \ ijbjh^_ g_ gZ[ex^Z_lky
[2].
Dh]^Z kdj_sb\Zgb_ kemqZcgh qZklhlZ \_jhylghklv kdj_sb\Zgby hij_^_e_gguo jh^bl_evkdbo \ZjbZglh\ ]_ghlbih\ aZ\bkbl lhevdh hl qZklhl dZ`^h]h ]_ghlbiZ \ ihim-
14
eypbb b jZ\gZ ijhba\_^_gbx wlbo qZklhl >ey hij_^_e_gby \_jhylghklb jZaebqguo \ZjbZglh\ kdj_sb\Zgby m^h[gh ihevah\Zlvky \kihfh]Zl_evghc lZ[ebp_c
Fm`kdb_ |
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@_gkdb_ ]_ghlbiu |
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]_ghlbiu |
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AA |
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yx |
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y2 |
yz |
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QZklhlu Zee_e_c : b Z \ jh^bl_evkdhc ihimeypbb fh`gh jZkkqblZlv gZ hkgh\_ ba-
\_klguo qZklhl ]_ghlbih\ LZd qZklhlZ Zee_ey : h[hagZq_ggZy dZd j jZ\gZ p= x + 0.5•\ qZklhlZ Zee_ey Z h[hagZq_ggZy dZd T jZ\gZ q= z + 0.5•× \ < dZ`^hf \ZjbZgl_ kdj_sb\Zgby \_jhylghklv ihy\e_gby jZaebqguo ]_ghlbih\ hij_^_ey_lky gZ hkgh\_ ijZ-
\beZ F_g^_ey h g_aZ\bkbfhf jZkij_^_e_gbb ]Zf_l J_amevlZlu kdj_sb\Zgby m^h[gh h[h[sblv \ \b^_ lZ[e
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QZklhlu ]_ghlbih\ m ihlhfdh\ |
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lu |
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kdj_sb\Z- |
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gby |
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0.25 y |
0.5 y |
0.25 y |
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Blh]h |
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(x+y+z) |
(x+0.5 y)2 |
2(x+0.5y)(z+0.5y |
(z+0.5y) |
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2 |
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<b^gh qlh blh]h\u_ qZklhlu ]_ghlbih\ :: :Z b ZZ \ ihimeypbb ihlhfdh\ fh- |
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]ml [ulv hij_^_e_gu q_j_a qZklhlu ]_ghlbih\ b qZklhlu Zee_e_c m bo jh^bl_e_c |
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aa = (z+0.5y)2 = q2. |
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KmffZ qZklhl jh^bl_evkdbo ]_ghlbih\ jZ\gZ _^bgbp_ |
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p2 + 2pq +q2 = 1 . |
(13) |
Ijb wlhf qZklhlu Zee_e_c m ihlhfdh\S1 , q1 dZd ihdZau\Zxl jZkq_luS1 = p2 + 0.5•2pq = p(p + q) = p; q1 = q2 + 0.5•2pq = q(p+q) = Tg_ baf_gbebkv
LZdbf h[jZahf ijb khojZg_gbb mkeh\by kemqZcgh]h k\h[h^gh]h kdj_sb\Zgby
(iZgfbdkbb \ hlkmlkl\bb nZdlhjh\ baf_gqb\hklb qZklhlu Zmlhkhfguo Zee_e_c \ jy^m ihdhe_gbc g_ baf_gyxlky b ihimeypby hdZau\Z_lky \ khklhygbb jZ\gh\_kby ijZ-
15
\beh OZj^b <Zcg[_j]Z Ijb jZ\_gkl\_ qZklhl Zee_e_c m dZ`^h]h iheZ khhl\_lkl\b_ f_-
`^m qZklhlZfb Zee_e_c b qZklhlZfb ]_ghlbih\ mklZgZ\eb\Z_lky \ i_j\hf ihdhe_gbb < kemqZ_ g_jZ\_gkl\Z qZklhl Zee_e_c m fm`kdh]h b `_gkdh]h iheh\ jZ\gh\_kgu_ qZklhlu ihy\eyxlky \h \lhjhf ihdhe_gbb lh]^Z dZd \ i_j\hf mklZgZ\eb\Z_lky jZ\_gkl\h qZklhl Zee_e_c fm`kdh]h b `_gkdh]h iheZ
JZ\gh\_kgu_ qZklhlu m ]_ghlbih\ hij_^_ey_fuo khq_lZgb_f jy^Z Zee_e_c p, q,
U «fh`gh hij_^_eblv gZ hkgh\_ h[s_]h \ujZ`_gby OZj^b <Zcg[_j]Z
(p + q + r + ...)2 = 1 |
(14) |
Kp_ie_ggu_ k ihehf ijbagZdb
JZkkfhljbf kemqZc dh]^Z ]_g hij_^_eyxsbc ijbagZd k\yaZg k iheh\hc ojhfh-
khfhc Hij_^_e_gb_ iheZ m ^biehb^guo hj]Zgbafh\ hkgh\Zgh gZ ]_l_jh]Zfbb <uy\e_- gh g_kdhevdh lbih\ iheh\hc ]_l_jh]Zfbb >ey ^jhahnbeu q_eh\_dZ b fgh]bo ^jm]bo hj]Zgbafh\ `_gkdbc ihe oZjZdl_jbam_lky gZebqb_f ^\mo ;ojhfhkhf OO fm`kdhc
;ojhfhkhfu b<ojhfhkhfu;<DZjlbjh\Zgb_ iheh\uo;b<ojhfhkhf q_eh\_dZ \uy\beh gZebqb_ m gbo ]hfheh]bqguo kh^_j`Zl j_p_kkb\gu_ ]_gu h[mkeh\eb\Zxsb_ jZa\blb_ h[s_c p\_lh\hc ke_ihlu ib]f_glghc dk_jh^_jfu [he_agb H]mlb kiZklbq_- kdhc iZjZie_]bb wib^_jfZevgh]h [mee_aZ b g_]hfheh]bqguo mqZkldh\ <;ojhfhkhf_ wlh j_p_kkb\gu_ ^ey `_gsbg ]_gu ]_fhnbebb ^ZevlhgbafZ fur_qghc ^bkljhnbb ]bih]ZffZ]eh[mebg_fbb ^hfbgZglgh]h ]_gZ ]bihnhknZl_fbq_kdh]h jZoblZ <<ojh- fhkhf_ ]_gu hl\_lkl\_ggu_ aZ ihy\e_gb_ i_j_ihghd f_`^m iZevpZfb b \hehkZluo mr_c
IjbagZdb k\yaZggu_ k ]hfheh]bqggufb mqZkldZfb iheh\uo ojhfhkhf \_^ml k_[y \ ihimeypbb lhqgh lZd `_ dZd ijbagZdb k\yaZggu_ k ZmlhkhfZfb Ijb bamq_gbb ehdm- kh\ ehdZebah\Zgguo \ g_]hfheh]bqghf mqZkld_ O ojhfhkhfu g_h[oh^bfh mqblu\Zlv g_jZ\ghf_jgh_ jZkij_^_e_gb_ Zee_e_c f_`^m km[ihimeypb_c kZfph\ b km[ihimeypb_c kZfhd Ijb jZ\ghf khhlghr_gbb hkh[_c dZ`^h]h iheZ ^\_ lj_lb \k_o O ojhfhkhf gZ- oh^blky \ km[ihimeypbb kZfhd b lhevdh h^gZ lj_lv \ km[ihimeypbb kZfph\ < kemqZ_ dh]^Z \ fm`kdhc b `_gkdhc km[ihimeypbyo qZklhlu Zee_e_c g_ h^bgZdh\u kj_^gxx
qZklhlm Zee_ey gZijbf_j : hij_^_eyxl ih nhjfme_ |
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jkj = 2/3 j`_g + 1/3 jfm` . |
(15) |
JZkkfhljbf dZd \_^ml k_[y \ jy^m ihdhe_gbc qZklhlu Zee_e_c ehdmk dhlhjuo gZ- oh^blky \ g_]hfheh]bqghf mqZkld_ O ojhfhkhfu
16
Imklv \ i_j\hf ihdhe_gbb qZklhlu Zee_e_c \ km[ihimeypbb kZfph\ b kZfhd g_h^bgZdh-
\u b ij_^klZ\e_gu ke_^mxsbfb \_ebqbgZfb kZfpu j : TZ kZfdb j
: TZ Kj_^gyy qZklhlZ Zee_ey : \ ihimeypbb kh]eZkgh jZ\gZ jkj = 2/3•0.4+1/3•0.8=0.533.
<h \lhjhf ihdhe_gbb qZklhlu Zee_e_c \ km[ihimeypbb kZfph\ [m^ml lZdbfb `_ dZd qZklhlu Zee_e_c \ km[ihimeypbb kZfhd i_j\h]h ihdhe_gby lZd dZd hgb [m^mqb bo fZl_jyfb i_j_^Zeb bf k\hb O ojhfhkhfu j : TZ Wlbf \Z`guf k\hckl-
\hf hij_^_ey_lky baf_g_gb_ qZklhl b \ ihke_^mxsbo ihdhe_gbyo QZklhlu Zee_e_c \ km[ihimeypbb kZfhd \lhjh]h ihdhe_gby fh`gh jZkkqblZlv ba qZklhl ]_ghlbih\ kZfph\ b kZfhd i_j\h]h ihdhe_gby IjbgbfZy mkeh\b_ k\h[h^gh]h kdj_sb\Zgby ihemqZ_f j : •0.4+0.5 (0.8•0.6+0.2•0.4)=0.6; TZ
jkj. = 2/3•0.6+1/3•0.4=0.533
< lj_lv_f ihdhe_gbb qZklhlu Zee_e_c \ km[ihimeypbb kZfph\ [m^ml jZ\gu j :
0.6, TZ M kZfhd j : •0.6+0.5(0.4•0.4+0.6•0.6) = 0.5; TZ
jkj. = 2/3•0.5+1/3•0.6=0.533.
KhihklZ\e_gb_ qZklhl Zee_e_c \ lj_o ihke_^h\Zl_evguo ihdhe_gbyo iha\hey_l k^_eZlv ke_^mxsb_ aZdexq_gby kj_^gb_ agZq_gby qZklhl Zee_e_c hklZxlky ihklh- yggufb jZaebqby qZklhl h^ghbf_gguo Zee_e_c f_`^m kZfpZfb b kZfdZfb \ ihdh- e_gbb ihlhfdh\ \ ^\Z jZaZ f_gvr_ q_f \ ihdhe_gbb jh^bl_e_c qZklhlu Zee_e_c i_jbh^bq_kdb f_gyxl k\hb agZq_gby hlghkbl_evgh kj_^g_c qZklhlu jkj ihkl_i_ggh ijb[eb`Zykv d g_c
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3 kZfpu |
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Ihdhe_gby
Jbk >bgZfbdZ qZklhlu Zee_ey j : ^ey ehdmkZ k\yaZggh]h k O ojhfhkhfhc \ km[ihimeypbyo kZfph\ b kZfhd
17
GZ jbk ^ZgZ ^bgZfbdZ qZklhl ba jZkkfhlj_ggh]h \ur_ ijbf_jZ gZ ijhly`_gbb r_klb ihdhe_gbc Ohly Z[khexlgh]h kh\iZ^_gby qZklhl Zee_e_c \ km[ihimeypbyo kZf- ph\ b kZfhd [ulv g_ fh`_l \k_]^Z kms_kl\m_l ihdhe_gb_ \ dhlhjhf jZaebqby klZgh-
\ylky klZlbklbq_kdb g_hlebqbfufb dZd ^jm] hl ^jm]Z lZd b hl kj_^g_]h agZq_gby qZk- lhlu Zee_ey < wlhf kemqZ_ jZ\gh\_kgu_ qZklhlu ]_ghlbih\ fh`gh ij_^klZ\blv ke_-
^mxsbf h[jZahf
KZfpu : jkj Z qkj (16)
KZfdb :: j2kj; :Z jkjqkj; ZZT2kj (16’)
IhebnZdlhjbZevgu_ ]_ghlbiu
:gZeba qZklhl ihebnZdlhjbZevguo ]_ghlbih\ g_h[oh^bf ijb bamq_gbb iheb]b[- jb^gh]h kdj_sb\Zgby Z lZd`_ gZke_^h\Zgby fgh]bo dhebq_kl\_gguo ijbagZdh\ gZ- ijbf_j jhklZ b fZkku l_eZ
<k_ qZklhlu Zee_e_c \ Zmlhkhfguo ehdmkZo dh]^Z bo jZkkfZljb\Zxl g_aZ\bkbfh hl qZklhl Zee_e_c \ ^jm]bo ehdmkZo ^hklb]Zxl jZ\gh\_kby \ i_j\hf ihdhe_gbb _keb hgh \hagbdeh ijb kh[ex^_gbb mkeh\bc kemqZcgh]h kdj_sb\Zgby H^gh\j_f_ggh mklZ- gZ\eb\Z_lky jZ\gh\_kb_ b ih qZklhlZf khhl\_lkl\mxsbo ]_ghlbih\ H^gZdh qZklhlu ihebnZdlhjbZevguo ]_ghlbih\ \ hij_^_e_gguo kemqZyo ^hklb]Zxl jZ\gh\_kby lhevdh ihke_ kf_gu g_kdhevdbo ihdhe_gbc
JZ\gh\_kgu_ qZklhlu ihebnZdlhjbZevguo ]_ghlbih\ fh]ml [ulv hij_^_e_gu gZ hkgh\_ ba\_klguo qZklhl Zee_e_c ih dZ`^hfm \oh^ys_fm \ _]h khklZ\ ehdmkm
(a1+a2+...+an)2• (b1+b2+...+bn)2•...• (k1+k2+...+kn)2 = 1 , |
(17) |
]^_D1, a2...an ), (b1, b2,...bn), (k1,+k2,+...+kn qZklhlu Zee_e_c ehdmkh\ : < b D khhl\_l- kl\_ggh
JZkkfhljbf ijbf_j gZke_^h\Zgby [bnZdlhjbZevguo ]_ghlbih\ \ iZgfbdlbq_kdhc ihimeypbb >ey ijhklhlu ij_^iheh`bf qlh \ dZ`^hf ehdmk_ \klj_qZxlky ih ^\Z Zee_- ey k khhl\_lkl\mxsbfb qZklhlZfb j : TZ U< s(E QZklhlu fhghnZdlhjbZevguo ]_ghlbih\ ijb jZ\gh\_kbb \ khhl\_lkl\bb k aZdhghf OZj^b <Zcg[_j]Z jZ\gu j2(AA),
jTAa), q2(DD^ey ehdmkZ : bU2(BB), 2rs(Bb), s2 (EE^ey ehdmkZ < QZklhlu ^_\ylb [b- nZdlhjbZevguo ]_ghlbih\ kh]eZkgh jZ\gu j2r2 ::<< j22rs(::<Ej2s2(Aabb), r2($D%%jT UV$D%EjT V2(Aabb), q2 r2(aaBB), q22rs(aaBb), q2 s2(aabb).
18
Ijb ^b]b[jb^ghf kdj_sb\Zgbb h[jZam_lky q_luj_ lbiZ ]Zf_l $% Ab), (aB), (DE?keb h[hagZqblv qZklhlu ]Zf_l dZd h(AB), i(Ab), j(D%b k(DElh ijb kemqZcghf khq_lZgbb Zee_e_c ^he`gu \uihegylvky ke_^mxsb_ jZ\_gkl\Z
h = pr, i = ps, j = qr, k = qs . |
(18) |
< wlhf kemqZ_ ijhba\_^_gby qZklhl ]Zf_l :B)•(ZEb Ab)•(D%jZ\gu ^jm] ^jm]m hk = LMlZd dZd h[Z hij_^_eyxlky \_ebqbghcSTUVMdZaZggh_ jZ\_gkl\h hljZ`Z_l kh]eZ- kh\Zggh_ ih hij_^_e_gbx X : Nbebiq_gdh dhgdhj^Zglgh_ khhlghr_gb_ qZklhl ]Z- f_l
Ijbgylh kqblZlv qlh ]Zf_lu :< b ZEgZoh^ylky \ khklhygbb ijbly`_gby Z ]Z-
f_lu :Eb Z< \ khklhygbb hllZedb\Zgby < hlkmlkl\b_ jZ\gh\_kby hk ≠ |
LM b f_jhc |
g_jZ\gh\_kghklb kem`bl \_ebqbgZ d jZ\gZy |
|
G = KN − LM |
(19) |
JZkkfhljbf ihimeypbx kh^_j`Zsmx \ bkoh^ghf ihdhe_gbb lhevdh ]_l_jhab]hlu :Z<EHgb h[jZamxl \k_ q_luj_ lbiZ ]Zf_l qZklhlu dhlhjuo ijb hlkmlkl\bb kp_ie_- gby h^bgZdh\u b khklZ\eyxl <_ebqbgZ d < j_amevlZl_ kemqZcgh]h h[t_^bg_- gby ]Zf_l \hagbdg_l ]_ghlbih\ kh ke_^mxsbfb qZklhlZfb m ]_ghlbih\ ::<< ::bb, ZZ<< ZZEEm ::<E:Z<< ::EEZZ<Eb m :Z<E< ke_^mxs_f ihdhe_gbb ]Zf_lu [m^ml \hkijhba\_^_gu k jZ\ghc \_jhylghklvx b bo qZklhlu \gh\v khklZ\yl Z bo kemqZcgh_ h[t_^bg_gb_ ^Zkl l_ `_ qZklhlu ]_ghlbih\ Ke_^h\Zl_ev- gh \ wlhf kemqZ_ jZ\gh\_kgu_ qZklhlu ]_ghlbih\ ^hklb]Zxlky \ i_j\hf ihdhe_gbb \hagbdr_f \ j_amevlZl_ kemqZcgh]h kdj_sb\Zgby
>jm]Zy kblmZpby \hagbdZ_l dh]^Z ihimeypby ij_^klZ\e_gZ hkh[yfb k ]_ghlbiZfb
::<< b ZZEE\ khhlghr_gbb Hgb h[jZamxl lhevdh ^\Z \b^Z ]Zf_l :< b ZEk qZklhlZfb b <_ebqbgZ d bf__l fZdkbfZevgh_ agZq_gb_ Ijb kemqZcghf khq_lZgbb ]Zf_l \h \lhjhf ihdhe_gbb \hagbdg_l lhevdh ljb \ZjbZglZ ]_ghlbih\ k qZk- lhlZfb ::<< :Z<b (0.5), ZZEENhg^ ]Zf_l \ wlhf ihdhe_gbb ij_^klZ\- e_g ke_^mxsbfb qZklhlZfb :< :b, 1/8 Z< b ZE <_ebqbgZ d < lj_lv_f ihdhe_gbb ihy\eyxlky \k_ ^_\ylv \ZjbZglh\ ]_ghlbih\ h[jZamxsbo ]Zf_lu k qZklhlZfb :< :b, 3/16 Z< ZE<_ebqbgZ d LZdbf h[jZahf hl ihdhe_gby d ihdhe_gbx m\_ebqb\Zxlky qZklhlu i_j\hgZqZevgh hlkmlkl\h\Z\rbo ]Zf_l :E b Z< b ijhihjpbhgZevgh kgb`Z_lky qZklhlZ ]Zf_l :< b ZE <_ebqbgZ d \ dZ`^hf ihke_^mxs_f ihdhe_gbb mf_gvrZ_lky \ jZaZ Ihdhe_gb_ \ dhlhjhf \_ebqbgZ dn g_ [m^_l ^hklh\_jgh hlebqZlvky hl gmey fh`gh kqblZlv jZ\gh\_kguf
19
Mf_gvr_gb_ \_ebqbgu d \ jZaZ \ dZ`^hf ke_^mxs_f ihdhe_gbb kijZ\_^eb\h lhevdh ^ey g_kp_ie_gguo ehdmkh\ dh]^Z qZklhlZ j_dhf[bgZpbb k fZdkbfZevgZ b jZ\gZ
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20