! ! & % , =(* , " '() *() + - ( ! . % / 0 & % + !1 /& / 2 3% " . & % & % +% / 2 7 5 7 2 3 & 6 " # $ % 6 ! 0 5 % *(( (( * / ! (4$ & ! ! (. 8 9 8 ()! 1 / 9 1 / & 2 6 % 2 A ; <= . ;< . 2 /2 ( # % /6 =. & * - 6 2 3% + 3 :% " 4( % ! % ( & % !1 "2 ! > $ (*. > !% $ B M2 M1 =(( 0( 2 ( 9 + 9 & % % ! ! 1? " 2 " @5 2 /6 2 /6 % & '() θ ω = θ θ = ω ω 3 3 > ω A ω % 3% + ( =. 9 ! 1 / 7 ω = = 0 1 / 7 & % > ! = 6 2 ! $ / *() θ θ ω = θ ω ω '( 8 = = ω *( * ! 8 8 = A = * ( B Σ@B<(CB<@, Σ@D<(C <E Σ;$<(CE A8<BA4 , ! C µ H(F8I*C µ @,<8AE 94<=F*. <(F8I* & < ( K0 C &<4 E @,G@, /6<µA <µAE C =F*. GµA E . @, $ B % Σ@B<(CB<@,J@ Σ@D<(C <E JE& Σ;$<(CE A8JE&A0<BA4 & < ( K0 C &<4 , ! 5@,J@ A4< A8J4(A0 C @,J@ <0=F* . E @,G@, /6<µA <(F8I*A5 J4( <8=F* C @ H0=F*K8=L*<8( . C @<8( . < '= E @, > $ E % / " ! / % % % M ! (A (8 ! 0A (K0 ! $ 9$ 9$ ! % !*(A (K *!((A (K ! " # ! ! ! $ !" !" # $ ! # % % ' ( ) % 5MA AN 5#A & > % ! "" ! % 52 9P 5 9M A5>9 2 5#9M 5MQK 5RAB # O% $9O% $9O% 2 + , # $ 5 AN ! E * !*(A (8 # 4!((A (K ! - # $9 $9 ∆ +∆ =O ∆ = 5 ∆ = 5& 2 − & = − ( ' 4 2 − = ( * ( 58 − 8 = 4* * S = − 8* S O = 4* * − 8* = − =' I S % O = −@ θ = =' I ∆& θ @ = −O @ =µ @ µ= θ O E= ∆& θ = −@ = =@ ( = = 00 = 00 =( 8 (' 4 ( =@ 5 + @ <= 00 D< 8 9 − ∆& 9 E = = 00 5 8 + ( 8 = 2 − = > $ − 8 =( 8 9 θ 9 ( = ** =0 + ' 4= = 2 T [] [] [8] 8 & / ; ; !; (. −. ) $& = # /α = # / . =- ( + )! ( − )− - ( % . = (8 80 + ' 4) = * 4I ! ! ' & % - −. = . −- = - [] [ ] - T $ − ( = & )= + <U ' % . =- = ( ! )! [8] & =0 * ! 2 . = =(' 4 − 8 80) = 0 0*0 ! ! × 8 80 × = ω' = − ' = * ( * = * 9 ! 9 =(8 = 8 80 9 ; + . ω( = ( =* (V= = > 6(<J(F 0 5 / ϕ 6 = *$ / / = 9 5 ϕ (* + ϕ) E ϕ = (V 0 $ (* ⋅ ( + ϕ) = *$ − (V0 = *$ + ϕ) 0 (<K(F (* ⋅ ( + ϕ) = $ (V 0 = $ 2 (* 6=$ 9 $ ϕ = −(V 7 $ϕ = $ ϕ + 7$ ϕ = −(V $ = (V + (V 0 7 = (V V = (* 6 = (V ϕ= V = + V =) % + γ= = (V = = (V8 ⋅ (V= − < ω( $ T= ω = ω( − γ = * − (V8 = =V'' "% 9 π π = = V *' ω =V'' /6 ! 7 KT! E = E ! −γ $5 = $5 − T − γ( −T ) 7 = −γ + γ( −T) = − γT − ( V8 ⋅ V *' = ((WK04F*W<8 F*W 2 6 <6( ϕ=− $ ! (ω (ω ( −Ω @( ( −Ω ) + =γ Ω = 6( γΩ ω( − Ω 2 ( + =γ Ω = 6 ( γΩ γΩ =− = −∞ ( ω( − Ω " ϕ ∈ ]− π!([ ! 6<(F γΩ = 6 ( ϕ = −π 9 2 5* J F = ! 5* + 8VI4* % 2 E @D<K ! & @<K@ < ! @= 6 = (V = - & % Ω = 6 ( Ω = (V ⋅ (V = ⋅ * = (V = ϕ@ = V = − ϕ = V = − 5 − π 9 @ = (V = 7 2 5Ω Jϕ@ ! E ) + =γ Ω : ϕ=− X 2 ϕ@Jϕ< F = @( = 6 ( @<@( 5Ω Jϕ@Jϕ ! 6( = E 6 Ω<ω(<* 9 = (V04* = 04V*W = (V = Z (V 5* + V = Y 5* + V = = (V = = (V = ⋅ (V ⋅ * 5* + V = = 5* + 8VI4* " α< 5αJπ9 = 8VI4* 6(<(F !