フェルマーの最終定理の証明 (788ﾚｽ)
フェルマーの最終定理の証明 http://rio2016.5ch.net/test/read.cgi/math/1745314067/
上
下
前次
1-
新
通常表示
512ﾊﾞｲﾄ分割
ﾚｽ栞
抽出解除
必死ﾁｪｯｶｰ(本家)
(べ)
自ID
ﾚｽ栞
あぼーん
ﾘﾛｰﾄﾞ規制
です｡10分ほどで解除するので､
他のﾌﾞﾗｳｻﾞ
へ避難してください｡
778: １３２人目の素数さん [] 2025/09/01(月) 08:57:38.67 ID:b44elzXy M(θ)=E[e^θX ]=∫_(-∞)^∞??e^θx f(x)dx? M(θ)=E[e^θX ]=1/(√2π σ) ∫_(-∞)^∞??e^θx e^(-(x-μ)^2/(2σ^2 )) ? dx=1/(√2π σ) ∫_(-∞)^∞?e^(θx-(x-μ)^2/(2σ^2 )) dx θx-(x-μ)^2/(2σ^2 )=1/(2σ^2 ) (2σ^2 θx-(x-μ)^2 )=-1/(2σ^2 ) (? (x-μ)?^2-2σ^2 θx ) =-1/(2σ^2 ) (? x?^2+μ^2-2μx-2σ^2 θx ) =-1/(2σ^2 ) (? x?^2-2(μ+σ^2 θ)x+μ^2 ) =-1/(2σ^2 ) ((x-(μ+σ^2 θ))^2-(μ+σ^2 θ)^2+μ^2 ) =-1/(2σ^2 ) ((x-(μ+σ^2 θ))^2-(μ^2+2μσ^2 θ+σ^4 θ^2 )+μ^2 ) =-1/(2σ^2 ) ((x-(μ+σ^2 θ))^2-(2μσ^2 θ+σ^4 θ^2 ) ) =-(x-(μ+σ^2 θ))^2/(2σ^2 )+μθ+(σ^2 θ^2)/2 M(θ)=1/(√2π σ) ∫_(-∞)^∞?e^(θx-(x-μ)^2/(2σ^2 )) dx =1/(√2π σ) ∫_(-∞)^∞?e^((-(x-(μ+σ^2 θ))^2/(2σ^2 )+μθ+(σ^2 θ^2)/2) ) dx =1/(√2π σ) e^(μθ+(σ^2 θ^2)/2) ∫_(-∞)^∞?e^((-(x-(μ+σ^2 θ))^2/(2σ^2 )) ) dx t=(x-(μ+σ^2 θ))/(√2 σ) x=√2 σt+μ+σ^2 θ dx=√2 σdt (x-(μ+σ^2 θ))^2/(2σ^2 )=((x-(μ+σ^2 θ))/(√2 σ))^2=t^2 -∞<x?∞ ⇒-∞<t?∞ http://rio2016.5ch.net/test/read.cgi/math/1745314067/778
779: １３２人目の素数さん [] 2025/09/01(月) 09:08:19.54 ID:b44elzXy F(ω)=∫[-∞→∞]f(t)e^(-jωt)dt f(t)= F^(-1) [F(ω)]=1/2π ∫[-∞→∞]F(ω) e^jωt ? dω g(t)={(0(t<0)：f(t)e^(-σt)t≧0) G(ω)=∫[-∞→∞]g(t)e^(-jωt)dt =∫[0→∞]g(t)e^(-jωt)dt =∫[0→∞]f(t)e^(-σt)e^(-jωt)dt =∫[0→∞]f(t)e^(-(σ+jω)t)dt s=σ+jω F(s)=∫[0→∞]f(t)e^(-st)dt s=σ+jω ds=jdω ω: -∞ → ∞ s：σ-j∞→σ+j∞ g(t)=(1/2π)[-∞→∞]F(s)e^jωtdω =(1/2πj)∫[σ-j∞→σ+j∞]F(s)e^jωtds f(t)e^(-σt)=f(t)/e^σt =(1/2πj)∫[σ-j∞→σ+j∞]F(s) e^jωtds f(t)=(1/2πj)∫[σ-j∞→σ+j∞]F(s)e^σt e^jωtds =(1/2πj)∫[σ-j∞→σ+j∞]F(s) e^(σ+jω)tds f(t)=(1/2πj)∫[σ-j∞→σ+j∞]F(s) e^stds http://rio2016.5ch.net/test/read.cgi/math/1745314067/779
780: １３２人目の素数さん [] 2025/09/01(月) 09:20:27.98 ID:b44elzXy f(θ)=a_0/2+?[k=1→∞](a_k cos(kθ)+b_k sin(kθ)) a_k=1/π ∫[-π→π]f(θ)cos(kθ)dθ) b_k=1/π ∫[-π→π]f(θ)sin(kθ)dθ e^jθ =cosθ+jsinθ e^(-jθ)=cosθ-jsinθ cosθ=(e^jθ+e^(-jθ))/2. sinθ=(e^jθ-e^(-jθ))/2j. f(θ)=a_0/2+?[k=1→∞](a_k (e^jkθ+e^(-jkθ))/2+b_k (e^jkθ-e^(-jkθ))/2j) =a_0/2+?[k=1→∞](a_k(e^jkθ+e^(-jkθ))/2+?jb?_k (e^(-jkθ)-e^jkθ)/2) =a_0/2+?[k=1→∞]((a_k-jb_k)/2 e^jkθ) +?[k=1→∞]((a_k+jb_k)/2 e^(-jkθ) ) a_(-k)=(1/π)∫[-π→π]f(θ)cos(-kθ)dθ) =(1/π)∫[-π→π]f(θ)cos(kθ)dθ)=a_k b_(-k)=(1/π)∫[-π→π]f(θ)sin(-kθ)dθ = -1/π ∫[-π→π]f(θ)sin(kθ)dθ= -b_k f(θ) =?[k=1→∞]((a_k+jb_k)/2 e^(-jkθ) ) +a_0/2+?[k=1→∞]((a_k-jb_k)/2 e^jkθ ) =(a_2+jb_2)/2 e^(-j2θ)+(a_1+jb_1)/2 e^(-j1θ)+a_0/2+(a_1-jb_1)/2 e^j1θ+(a_2-jb_2)/2e^j2θ+? =(a_(-2)-jb_(-2))/2 e^j2θ+(a_(-1)-jb_(-1))/2 e^j1θ+a_0/2+(a_1-jb_1)/2 e^j1θ+(a_2-jb_2)/2 e^j2θ+? =?_(k=-∞)^∞?((a_k-jb_k)/2 e^jkθ ) c_k=(a_k-jb_k)/2 f(θ)=?[k=-∞→∞]c_k e^jkθ c_k=(a_k-jb_k)/2 =(1/2π)∫[-π→π]f(θ)cos(kθ)dθ-(j/2π)∫[-π→π]f(θ)sin(kθ)dθ =(1/2π)∫[-π→π]f(θ)(cos(kθ)-jsin(kθ))dθ =(1/2π)∫[-π→π]f(θ)(cos(-kθ)+jsin(-kθ))dθ =(1/2π)∫[-π→π]f(θ)(cos(-kθ)+jsin(-kθ))dθ =(1/2π)∫[-π→π]f(θ)e^(-jkθ)dθ http://rio2016.5ch.net/test/read.cgi/math/1745314067/780
781: １３２人目の素数さん [] 2025/09/01(月) 09:21:54.34 ID:b44elzXy f(τ)=0 ∴f(τ)g(t-τ)=0 g(t-τ)=0 ∴f(τ)g(t-τ)=0 f*g(t)=∫_(-∞)^∞??f(τ)g(t-τ)dτ? =∫_(-∞)^0??f(τ)g(t-τ)dτ?+∫_0^∞??f(τ)g(t-τ)dτ?=0 τ<0⇒f(τ)=0 ∴f(τ)g(t-τ)=0 0?τ?t⇒t-τ?0 ∴f(τ)=e^(-τ), g(t-τ)=t-τ τ>t⇒t-τ<0 ∴g(t-τ)=0, f(τ)g(t-τ)=0 f*g(t)=∫_0^t??e^(-τ) (t-τ)dτ?=∫_0^t??(-e^(-τ) )^' (t-τ)dτ? =-[?( @e^(-τ)@ )(t-τ)]_0^t-∫_0^t??-e^(-τ) (-1)dτ? =t-∫_0^t??e^(-τ) dτ? =t+[?( @e^(-τ)@ )]_0^t=t+e^(-t)-1 τ<0⇒f(τ)=0 ∴f(τ)g(t-τ)=0 t-τ>1⇒g(t-τ)=0 ∴f(τ)g(t-τ)=0 t-τ?1 ⇒ f(τ)=e^(-τ), g(t-τ)=t-τ f*g(t)=∫_(t-1)^t??e^(-τ) (t-τ)dτ?=∫_(t-1)^t??(-e^(-τ) )^' (t-τ)dτ? =-[?( @e^(-τ)@ )(t-τ)]_(t-1)^t-∫_(t-1)^t??e^(-τ) dτ? =-(0-e^(1-t) )+[?( @e^(-τ)@ )]_(t-1)^t=e^(1-t)+e^(-t)-e^(1-t)=e^(-t) http://rio2016.5ch.net/test/read.cgi/math/1745314067/781
782: １３２人目の素数さん [] 2025/09/01(月) 20:13:42.04 ID:b44elzXy C:x=x(t),y=y(t) OP↑=r(t)=(x(t),y(t)) OQ↑ ?=r(t+Δt)=(x(t+Δt),y(t+Δt)) Δs=|Δr|=|Δr(t+Δt)-r(t)| RΔθ≒Δs,1/R=Δθ/Δs 1/R=lim[Δt→0](Δθ/Δs)=dθ/ds dr/dt=rDt r Dt=(x Dt,y Dt) r ?(t+Δt)=(x ?(t+Δt),y ?(t+Δt)) r Dt=r ?=(x ?,y ?) r ?(t+Δt)= r ?_Q=(x ?_Q,y ?_Q) Δr ? ?Δr ?_Q ΔsinΔθ=det(r ?,r ?_Q) ΔθΔsinΔθ=(det(r ?,r ?_Q))/Δr ? ?Δr ?_Q ? http://rio2016.5ch.net/test/read.cgi/math/1745314067/782
783: １３２人目の素数さん [] 2025/09/01(月) 20:14:14.86 ID:b44elzXy f^((k) ) (z)=(n!/2πi)?_Cf(ζ)/(ζ-z)^(k+1)dζ ?@)n=1のとき f(z)=1/( 2πi) ?_Cf(ζ)/((ζ-z) ) dζ f(z+h)=1/( 2πi) ?_Cf(ζ)/(ζ-(z+Δz) ) dζ f(z+h)-f(z)=1/( 2πi) ?_Cf(ζ)/(ζ-(z+h) )-f(ζ)/((ζ-z) ) dζ =1/( 2πi) ?_Cf(ζ)((ζ-z)-(ζ-z-h))/(ζ-z-h)(ζ-z)dζ =1/( 2πi) ?_Cf(ζ)(ζ-z-ζ+z+h)/(ζ-z-h)(ζ-z)dζ =1/( 2πi) ?_Cf(ζ)h/(ζ-z-h)(ζ-z)dζ =h/( 2πi) ?_Cf(ζ)/(ζ-z-h)(ζ-z)dζ ( f(z+h)-f(z))/h=1/( 2πi) ?_Cf(ζ)/(ζ-z-h)(ζ-z)dζ h→0 f'(z)= f^((1)) (z)=1/2πi ?_C(f(ζ))/(ζ-z)^2dζ ?A)n=k(k=1,2,3,…)のとき f^((k)) (z)=k!/2πi ?_C(f(ζ))/(ζ-z)^(k+1)dζ ⇒f^((k+1)) (z)=(k+1)!/( 2πi) ?_Cf(ζ)/(ζ-z)^(k+2)dζ f^((k)(z+h)- f^((k) ) (z))/h =k!/( 2πih) ?_Cf(ζ)/(ζ-(z+h))^(k+1) -f(ζ)/(ζ-z)^(k+1)dζ =k!/( 2πih) ?_C((ζ-z)^(k+1)-(ζ-z-h)^(k+1))/((ζ-z-h)^(k+1) (ζ-z)^(k+1) ) f(ζ)dζ??※ (a+b)^(k+1) =(_k+1^ )C_0 a^n b^0+(_k+1^ )C_1 a^(k+1-1) b^1+(_k+1^ )C_2 a^(k+1-2) b^2+?+(_k+1^ )C_r a^(k+1-r) b^r+?+b^(k+1) =a^(k+1)+(k+1) a^k b+(_k+1^ )C_2 a^(k-1) b^2+?+(_k+1^ )C_r a^(k+1-r) b^r+? +b^(k+1) (ζ-z-h)^(k+1) =(ζ-z)^(k+1)-(k+1) (ζ-z)^k h + (_k+1^ )C_2 (ζ-z)^(k-1) h^2-?+h^(k+1) (ζ-z)^(k+1)-(ζ-z-h)^(k+1) =(k+1) (ζ-z)^k h-(_k+1^ )C_2 (ζ-z)^(k-1) h^2+?-h^(k+1) ( f^((k) ) (z+h)- f^((k) ) (z))/h =k!/( 2πih) ?_C((k+1) (ζ-z)^k h-(_k+1^ )C_2 (ζ-z)^(k-1) h^2+?-h^(k+1))/((ζ-z-h)^(k+1) (ζ-z)^(k+1) ) f(ζ)dζ =(k+1)!/( 2πi) ?_Cf(ζ)/((ζ-z-h)^(k+1) (ζ-z) ) dζ-k!/( 2πi) ?_C((_k+1^ )C_2 (ζ-z)^(k-1) h-?+h^k)/((ζ-z-h)^(k+1) (ζ-z)^(k+1) ) f(ζ)dζ h→0 f^((k+1)) (z) http://rio2016.5ch.net/test/read.cgi/math/1745314067/783
ﾒﾓ帳
(0/65535文字)
上
下
前次
1-
新
書
関
写
板
覧
索
設
栞
歴
ｽﾚ情報
赤ﾚｽ抽出
画像ﾚｽ抽出
歴の未読ｽﾚ
AAｻﾑﾈｲﾙ
Google検索
Wikipedia
ぬこの手
ぬこTOP
0.022s