!" ! #$%& • " #$%&'(&)* ! #$%&' #$%( & • + ,- #$%&'(&)* , #$%( & . ! #$%&) / ! 0 0 + ! "*+% +, / • 1 ! " * ) ) ! . • ) ) ( ! . ! . 2 " 3 3 (&$,4$ ($ &$%%* )/*(%*(* 3 3 4%&*,B/ *% / 6 &,/ -&(* ! 37 898 " ω 3 898 8 4 5? - * 4 A? 54 @? ω .,+! / +% . . :* -% &, 4*,4;,$-" 3 ! $ ! #$%<-(-" 4 $ =%$)/$,)&*" " ! $ $ ! >2 0 = 5 # *C# &4/( :* -% C;8&C- - ($ #&)-" 8 ! :* -% ($ %&D*(- - ($ #&)- * #&)-" 8 ! 3 :* -% C$(&- - ($ )-,4&,/*" 8 . C . 1 . = 0 $ 8 % + 0 ! " 8 $ + C 2 . 1 . ! = - .3 E :* -% $=&)*D - %C " 8 + 8 $ 5 E 0 - +, * ! $ . 0 2 2 2 1 5 $ 3 ! ! + $ 1 1 ! & 4: ! ! + + + ! / ! 3 # 6 " 3 78 ω 3 78 ω 9F 3 78 7E3 ω 3 78 ω 9F E 7E3 / E 0 2 . / 3 7 8 . . ω " 3 8 8 4 4 :* -% &, 4*,4;,$-" 3 7 8 ω #$%<-(-" 4 =%$)/$,)&*" = *)&'," ω = =%$)/$,)&* *,B/ *% - #/ 5π = 5π ! G . 5? 4 H :* -% C;8&C- - ($ #&)-" ( H8 ! . :* -% ($ #&)- * #&)-" # ($ =* *I$" F $ 7E $ + =5 . ! . ( 2 @ ! ! 6 2 ! 2 ω / 6 F 0 0 ω :* -% C$(&- - ($ )-,4&,/*" ) . E = ω E ! ! " =E :* -% $=&)*D" + " = $ F 0 F + 3 ω $ 8 F 2 5 ω E = 5 5π 5 2 .3 ! ) 5 = E 0 + ! 5 8 ! . 2 * 0 5 E : JE >2 / .3 2 ! 2 . / 3 78 . ω9F . " 3 ϕ ω 5π ϕ J ( ! $ 6 ! 5EK 3 -- , % +, * ! ! 1 %$ #/$ 4* 4%*, &4-%&* " 3 3 + %$ #/$ 4* #$%C*,$,4$ $3 $ 1 0 3 $ %) 1 $ % ) 3 " • • • • +1 ! .3 $ . # + ! * =-%C* ($ -,(* L * =%$)/$,)&* L* $ )-,-)$, A -- % +" + % + ) % + = ω = ω " % 5π π ω $ . -0 " & 7 : G% --- "! ! + % + ) ) " ω = ) + = ω = =ω = ω =ω ω + πG5 π π # 5π ω 5 8 7 : G& 7 Gω) ( NEK + . 1 & 7 : G8) ( 0 -- +!,"% +" + Ω % + ) + + ω = = " φ = πG5 π 5π ω = ω = == − ω ω = ω ω − 8 7 : G& 7 ω π 5 + + NEK + . 1 M " & 7 : G8 ( # . 1 2 +. P ) % ) 00 % $ 3 %) % 7: % ! ) ω " 7: ω ) " = * P = + = 00 = = " + " = + 0 , + 1 1 2 2 # * Q" = ω + 0 +. ( " ! 3 + ! 1 ω = ω = ω = ω + ω ω = ω ω − ω ω " ω ω = ω ω = $ ω ω+ ω − ω ω + ω + − ω + ω ω . ω= " ω+ = + − ω " ω=E = O 5 5 +ω5 5 5 5 5 ω ω +ω5 # + 6 ϕ & " ω + = ω = ω −ϕ = ω ϕ− ω ϕ " 5 = ϕ ϕ = =− 5 + 5 * Q" ϕ= L 2 =− + ω5 5 ω " ω −ϕ = = = ω + 5 + ω 5 ω 5 5 $ 1 + ω5 : 5 & D %) ω ϕ + %) ϕ= . % = " ω + = 5 = ) = + ω 5 ω 5 − +ω ω 5 5 5 ω + ω N = +ω 5 5 5 ω + ω − π 5 1 # . 1 2 % +. P 00 $ 3 ) & ! % 7: % " 7: ω ω % " = * P = + = 00 " + 0 , = + 1 1 2 2 # * Q" = ω + 0 +. ( " ! ! 1 ω ω + = 3 + ω = ω ω − ω ω " ω = ω = $ ω + − ω ω + ω ω + ω − ω + ω ω . ω " = − ω E= + ω # = + 5 " =− +ω5 5 ω 5 +ω5 5 + 6 ϕ = & " ω + ω = ω −ϕ = ω ϕ− ω ϕ " = =− = ϕ ϕ * + 5 Q" ϕ= E 5 = = 5 + ω5 ω 5 L 2 ω −ϕ = = " 5 +ω5 ω ω − 5 5 $ 1 & D +ω5 5 : % ω ϕ + % % = = = 5 = +ω5 ω 5 +ω 5 " ω − 5 5 ω ϕ= . ω − ω ω = ω 5 +ω 5 5 ω − ω + π 5 2 . + + " = # = = . 1 ! " (ω =: +ϕ ) (ω =& % . (ω + ϕ ) =: & : & = 5 [ (ϕ −ϕ +ϕ ) " ϕ (ω + ϕ ) = )− (5ω + ϕ -+ +ϕ ω )] . 1 + + + 5ω * 0 + 0 " #= = E : & 5 ϕ=: & + ϕ R + R (ϕ ϕ= $ ) −ϕ . " =: . # :* & " S=: & + " :*% ϕ S . . 5 = #5 + S5 ϕ ϕ =S# # 5 S 3 / . + , + + + ,5 $ + + : $ , &5 ,5 :5 . 1 6 φ = = 5 T 5 1 0 + + φ φ = " 5 = " + ! % + .* / " + 5 ( 0 1 & + 0 = U & 5 = 5 5 &5 " : = :5 5 , $ ,5 > < 7 # " = 5 = 5 + G = 5 5 = 5 2 5 5