intbar in native mode ⨍ ⨎
intbar in svg mode ⨍ ⨎ {\displaystyle \intbar \intBar }
Integral mit zwei Strichen: ⨎ A f ( x ) d x {\displaystyle \intBar _{A}f(x)\mathrm {d} x}
Integral mit einem Strich: ⨍ A f ( x ) d x {\displaystyle \intbar _{A}f(x)\mathrm {d} x}
Integral mit einem Strich in Textstyle: ⨍ A f ( x ) d x {\displaystyle \textstyle \intbar _{A}f(x)\mathrm {d} x}
Integral mit einem Strich und mit Limits: ⨎ A f ( x ) d x {\displaystyle \intBar \limits _{A}f(x)\mathrm {d} x}
Normales Integral über eine Menge mit displaystyle: ∫ A f ( x ) d x {\displaystyle \displaystyle \int _{A}f(x)\mathrm {d} x}
Normales Integral über ein Intervall mit Limits-Parameter mit displaystyle: ∫ 0 ∞ f ( x ) d x {\displaystyle \displaystyle \int \limits _{0}^{\infty }f(x)dx}
Normales Integral über ein Intervall (ohne Limits-Parameter) mit displaystyle: ∫ 0 ∞ f ( x ) d x {\displaystyle \displaystyle \int _{0}^{\infty }f(x)dx}
Normales Integral über ein Intervall mit NoLimits-Parameter mit displaystyle∫ 0 ∞ f ( x ) d x {\displaystyle \displaystyle \int \nolimits _{0}^{\infty }f(x)dx}
Normales Integral über ein Intervall (ohne Limits-Parameter) mit textstyle: ∫ 0 ∞ f ( x ) d x {\displaystyle \textstyle \int _{0}^{\infty }f(x)dx}
∮ ∂ Σ ⟨ F , τ ⟩ d s = ∬ Σ ⟨ rot F , ν ⟩ d S = ∬ Σ ( ∂ v 2 ∂ x − ∂ v 1 ∂ y ) d x d y {\displaystyle \oint _{\partial \Sigma }\langle F,\tau \rangle \,\mathrm {d} s=\iint _{\Sigma }\langle \operatorname {rot} \,F,\nu \rangle \,\mathrm {d} S=\iint _{\Sigma }\left({\frac {\partial v_{2}}{\partial x}}-{\frac {\partial v_{1}}{\partial y}}\right)\mathrm {d} x\mathrm {d} y}
∭ V K a r t f ( x , y , z ) d x d y d z = ∭ V K u g f ~ ( r , θ , φ ) ⋅ r 2 sin θ d r d θ d φ {\displaystyle \iiint _{V_{\mathrm {Kart} }}f(x,y,z)\,\mathrm {d} x\mathrm {d} y\mathrm {d} z=\iiint _{V_{\mathrm {Kug} }}{\tilde {f}}(r,\theta ,\varphi )\cdot r^{2}\sin \theta \,\mathrm {d} r\mathrm {d} \theta \mathrm {d} \varphi }
intbar in native mode mit textstyle ⨍ ⨎
intbar in native mode mit displaystyle ⨍ ⨎
intbar in native mode mit displaystyle und limits ⨍ 0 ∞ ⨎
Normales Integral über eine Menge mit displaystyle: ∫ A f ( x ) d x
Normales Integral über ein Intervall mit Limits-Parameter mit displaystyle: ∫ 0 ∞ f ( x ) d x
Normales Integral über ein Intervall (ohne Limits-Parameter) mit displaystyle: ∫ 0 ∞ f ( x ) d x
Normales Integral über ein Intervall mit NoLimits-Parameter mit displaystyle∫ 0 ∞ f ( x ) d x
Normales Integral über ein Intervall (ohne Limits-Parameter) mit textstyle: ∫ 0 ∞ f ( x ) d x
∮ ∂ Σ ⟨ F , τ ⟩ d s = ∬ Σ ⟨ r o t F , ν ⟩ d S = ∬ Σ ( ∂ v 2 ∂ x − ∂ v 1 ∂ y ) d x d y
∭ V K a r t f ( x , y , z ) d x d y d z = ∭ V K u g f ~ ( r , θ , φ ) ⋅ r 2 sin θ d r d θ d φ
∰ A f ( x ) d x {\displaystyle \oiiint _{A}f(x)\mathrm {d} x}
∯ A f ( x ) d x {\displaystyle \oiint _{A}f(x)\mathrm {d} x}
∳ A f ( x ) d x {\displaystyle \ointctrclockwise _{A}f(x)\mathrm {d} x}
∳ A f ( x ) d x {\displaystyle \ointctrclockwise _{A}f(x)\mathrm {d} x}
∲ A f ( x ) d x {\displaystyle \varointclockwise _{A}f(x)\mathrm {d} x}
∲ A f ( x ) d x {\displaystyle \varointclockwise _{A}f(x)\mathrm {d} x}
T ( n ) ( V ) := ⨁ i = 0 n V ⊗ i {\displaystyle \mathrm {T} ^{(n)}(V):=\bigoplus _{i=0}^{n}V^{\otimes i}}
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1 {\displaystyle {\frac {1}{\pi }}\sum _{n=1}^{\infty }{\frac {\sin(2\pi nx)}{n}}={\frac {1}{2}}-x,\;0<x<1}
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1 {\displaystyle {\frac {1}{\pi }}\sum \limits _{n=1}^{\infty }{\frac {\sin(2\pi nx)}{n}}={\frac {1}{2}}-x,\;0<x<1}
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1 {\displaystyle {\frac {1}{\pi }}\sum \nolimits _{n=1}^{\infty }{\frac {\sin(2\pi nx)}{n}}={\frac {1}{2}}-x,\;0<x<1}
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1 {\displaystyle \textstyle {\frac {1}{\pi }}\sum _{n=1}^{\infty }{\frac {\sin(2\pi nx)}{n}}={\frac {1}{2}}-x,\;0<x<1}
F N ( s ) = ∏ p ≤ N p Primzahl ∑ k = 0 ∞ f ( p k ) p k s {\displaystyle F_{N}(s)=\prod _{p\leq N \atop p\ {\text{Primzahl}}}\sum _{k=0}^{\infty }{\frac {f(p^{k})}{p^{ks}}}}
F N ( s ) = ∏ p ≤ N p Primzahl ∑ k = 0 ∞ f ( p k ) p k s {\displaystyle F_{N}(s)=\prod \limits _{p\leq N \atop p\ {\text{Primzahl}}}\sum _{k=0}^{\infty }{\frac {f(p^{k})}{p^{ks}}}}
∑ I , J f I , J d z I ∧ d z ¯ J := ∑ 1 ≤ j 1 < … < j q ≤ q 1 ≤ i 1 < … < i p ≤ p f i 1 , … i p , j 1 , … j q d z i 1 ∧ ⋯ ∧ d z i p ∧ d z ¯ j 1 ∧ ⋯ ∧ d z ¯ j q {\displaystyle \sum _{I,J}f_{I,J}\mathrm {d} z_{I}\wedge \mathrm {d} {\overline {z}}_{J}:=\sum _{\stackrel {1\leq i_{1}<\ldots <i_{p}\leq p}{1\leq j_{1}<\ldots <j_{q}\leq q}}^{}f_{i_{1},\ldots i_{p},j_{1},\ldots j_{q}}\mathrm {d} z_{i_{1}}\wedge \cdots \wedge \mathrm {d} z_{i_{p}}\wedge \mathrm {d} {\overline {z}}_{j_{1}}\wedge \cdots \wedge \mathrm {d} {\overline {z}}_{j_{q}}}
T ( n ) ( V ) : = ⨁ i = 0 n V ⊗ i
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1
1 π ∑ n = 1 ∞ sin ( 2 π n x ) n = 1 2 − x , 0 < x < 1
F N ( s ) = ∏ p ≤ N p Primzahl ∑ k = 0 ∞ f ( p k ) p k s
F N ( s ) = ∏ p ≤ N p Primzahl ∑ k = 0 ∞ f ( p k ) p k s
∑ I , J f I , J d z I ∧ d z ‾ J : = ∑ 1 ≤ j 1 < … < j q ≤ q 1 ≤ i 1 < … < i p ≤ p f i 1 , … i p , j 1 , … j q d z i 1 ∧ ⋯ ∧ d z i p ∧ d z ‾ j 1 ∧ ⋯ ∧ d z ‾ j q
γ x + ln [ Γ ( x + 1 ) ] = ∑ n = 1 ∞ [ x n − ln ( 1 + x n ) ] {\displaystyle \gamma \,x+\ln {\bigl [}\Gamma (x+1){\bigr ]}=\sum _{n=1}^{\infty }{\biggl [}{\frac {x}{n}}-\ln {\biggl (}1+{\frac {x}{n}}{\biggr )}{\biggr ]}}
γ x + ln [ Γ ( x + 1 ) ] = ∑ n = 1 ∞ [ x n − ln ( 1 + x n ) ]
Hom {\displaystyle \operatorname {Hom} }
∂ ¯ f := ∑ j = 1 n ∂ ∂ z ¯ j f d z ¯ j {\displaystyle {\overline {\partial }}f:=\sum _{j=1}^{n}{\frac {\partial }{\partial {\overline {z}}_{j}}}f{\rm {d}}{\overline {z}}_{j}}
⋁ i ∈ I A i = σ ( ⋃ i ∈ I A i ) {\displaystyle \bigvee \limits _{i\in I}{\mathcal {A}}_{i}=\sigma \left(\bigcup \limits _{i\in I}{\mathcal {A}}_{i}\right)}
⋂ n ∈ N A n = ( ⋃ n ∈ N A n c ) c {\displaystyle \bigcap _{n\in \mathbb {N} }A_{n}={\biggl (}\bigcup _{n\in \mathbb {N} }A_{n}^{\mathsf {c}}{\biggr )}^{\!\!{\mathsf {c}}}}
{ 1 2 π ln | x | , n = 2 , − 1 ( n − 2 ) ω n 1 | x | n − 2 , n > 2 {\displaystyle \left\{{\begin{array}{rl}{\frac {1}{2\pi }}\ln {|x|}\ ,&n=2,\\-{\frac {1}{(n-2)\,\omega _{n}}}{\frac {1}{|x|^{n-2}}}\ ,&n>2\\\end{array}}\right.}
H o m
0 ⟶ Γ ∞ ( E 0 ) ⟶ D 0 Γ ∞ ( E 1 ) ⟶ D 1 … ⟶ D m − 1 Γ ∞ ( E m ) ⟶ 0
∂ ‾ f : = ∑ j = 1 n ∂ ∂ z ‾ j f d z ‾ j
⋁ i ∈ I 𝒜 i = σ ( ⋃ i ∈ I 𝒜 i )
⋂ n ∈ ℕ A n = ( ⋃ n ∈ ℕ A n c ) c
{ 1 2 π ln | x | , n = 2 , − 1 ( n − 2 ) ω n 1 | x | n − 2 , n > 2
N , Z , Q , R , R , C , C , H , a {\displaystyle \mathbb {N} ,\mathbb {Z} ,\mathbb {Q} ,\mathbb {R} ,\mathbb {R} ,\mathbb {C} ,\mathbb {C} ,\mathbb {H} ,\mathbb {a} }
A B C D E F G H I J K L M N {\displaystyle {\mathcal {ABCDEFGHIJKLM}}{\mathcal {N}}}
ℕ , ℤ , ℚ , ℝ , ℝ , ℂ , ℂ , ℍ , 𝕒
𝒜 ℬ 𝒞 𝒟 ℰ ℱ 𝒢 ℋ ℐ 𝒥 𝒦 ℒ ℳ 𝒩
A = ( 3 2 1 1 0 2 ) ∈ R 2 × 3 {\displaystyle A={\begin{pmatrix}3&2&1\\1&0&2\end{pmatrix}}\in \mathbb {R} ^{2\times 3}}
A = ( 3 2 1 1 0 2 ) ∈ ℝ 2 × 3
Nach dem Satz von Atkinson ist ein Operator A : X → Y {\displaystyle A\colon X\to Y} genau dann ein Fredholm-Operator, wenn es Operatoren B 1 , B 2 {\displaystyle B_{1},B_{2}} und kompakte Operatoren K 1 , K 2 {\displaystyle K_{1},K_{2}} gibt, so dass A B 1 = I Y − K 1 {\displaystyle AB_{1}=I_{Y}-K_{1}} und B 2 A = I X − K 2 {\displaystyle B_{2}A=I_{X}-K_{2}} gilt, das heißt wenn
A
{\displaystyle A}
modulo kompakter Operatoren invertierbar ist. Insbesondere ist ein beschränkter Operator A : X → X {\displaystyle A\colon X\to X} genau dann ein Fredholm-Operator, wenn seine Klasse [ A ] C ( X ) {\displaystyle [A]_{{\mathcal {C}}(X)}} in der Calkin-Algebra B ( X ) / C ( X ) {\displaystyle {\mathcal {B}}(X)/{\mathcal {C}}(X)} invertierbar ist.
Nach dem Satz von Atkinson ist ein Operator A : X → Y genau dann ein Fredholm-Operator, wenn es Operatoren B 1 , B 2 und kompakte Operatoren K 1 , K 2 gibt, so dass A B 1 = I Y − K 1 und B 2 A = I X − K 2 gilt, das heißt wenn A modulo kompakter Operatoren invertierbar ist. Insbesondere ist ein beschränkter Operator A : X → X genau dann ein Fredholm-Operator, wenn seine Klasse [ A ] 𝒞 ( X ) in der Calkin-Algebra ℬ ( X ) / 𝒞 ( X ) invertierbar ist.
( ∂ 2 ∂ r 2 + 2 r ∂ ∂ r + 1 r 2 ∂ 2 ∂ θ 2 + 1 r 2 tan θ ∂ ∂ θ + 1 r 2 sin 2 θ ∂ 2 ∂ φ 2 ) ⋅ ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) = ∂ 2 ∂ r 2 ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 2 r ∂ ∂ r ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 1 r 2 ∂ 2 ∂ θ 2 ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 1 r 2 tan θ ∂ ∂ θ ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 1 r 2 sin 2 θ ∂ 2 ∂ φ 2 ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) = v r , r r e ^ r + v θ , r r e ^ θ + v φ , r r e ^ φ + 2 r v r , r e ^ r + 2 r v θ , r e ^ θ + 2 r v φ , r e ^ φ + 1 r 2 ∂ ∂ θ ( v r , θ e ^ r + v r e ^ θ + v θ , θ e ^ θ − v θ e ^ r + v φ , θ e ^ φ ) + 1 r 2 tan θ ( v r , θ e ^ r + v r e ^ θ + v θ , θ e ^ θ − v θ e ^ r + v φ , θ e ^ φ ) + 1 r 2 sin 2 θ ∂ ∂ φ ( v r , φ e ^ r + sin θ v r e ^ φ + v θ , φ e ^ θ + cos θ v θ e ^ φ + v φ , φ e ^ φ − sin θ v φ e ^ r − cos θ v φ e ^ θ ) = v r , r r e ^ r + v θ , r r e ^ θ + v φ , r r e ^ φ + 2 r v r , r e ^ r + 2 r v θ , r e ^ θ + 2 r v φ , r e ^ φ + 1 r 2 ( v r , θ θ e ^ r + v r , θ e ^ θ + v r , θ e ^ θ − v r e ^ r + v θ , θ θ e ^ θ − v θ , θ e ^ r − v θ , θ e ^ r − v θ e ^ θ + v φ , θ θ e ^ φ ) + 1 r 2 tan θ ( v r , θ e ^ r + v r e ^ θ + v θ , θ e ^ θ − v θ e ^ r + v φ , θ e ^ φ ) + 1 r 2 sin 2 θ ( v r , φ φ e ^ r + sin θ v r , φ e ^ φ + sin θ v r , φ e ^ φ − sin 2 θ v r e ^ r − sin θ cos θ v r e ^ θ + v θ , φ φ e ^ θ + cos θ v θ , φ e ^ φ + cos θ v θ , φ e ^ φ − sin θ cos θ v θ e ^ r − cos 2 θ v θ e ^ θ + v φ , φ φ e ^ φ − sin θ v φ , φ e ^ r − cos θ v φ , φ e ^ θ − sin θ v φ , φ e ^ r − sin 2 θ v φ e ^ φ − cos θ v φ , φ e ^ θ − cos 2 θ v φ e ^ φ ) = ( v r , r r + 2 r v r , r + 1 r 2 v r , θ θ + 1 r 2 tan θ v r , θ + 1 r 2 sin 2 θ v r , φ φ − 1 r 2 v r − 1 r 2 v θ , θ − 1 r 2 v θ , θ − 1 r 2 tan θ v θ − 1 r 2 v r − cos θ r 2 sin θ v θ − 1 r 2 sin θ v φ , φ − 1 r 2 sin θ v φ , φ ) e ^ r + ( v θ , r r + 2 r v θ , r + 1 r 2 v θ , θ θ + 1 r 2 tan θ v θ , θ + 1 r 2 sin 2 θ v θ , φ φ + 2 r 2 v r , θ − 1 r 2 v θ + 1 r 2 tan θ v r − cos θ r 2 sin θ v r − cos 2 θ r 2 sin 2 θ v θ − 2 cos θ r 2 sin 2 θ v φ , φ ) e ^ θ + ( v φ , r r + 2 r v φ , r + 1 r 2 v φ , θ θ + 1 r 2 tan θ v φ , θ + 1 r 2 sin 2 θ v φ , φ φ + 2 r 2 sin θ v r , φ + 2 cos θ r 2 sin 2 θ v θ , φ − sin 2 θ + cos 2 θ r 2 sin 2 θ v φ ) e ^ φ = ( Δ v r − 2 r 2 v r − 2 r 2 v θ , θ − 2 r 2 tan θ v θ − 2 r 2 sin θ v φ , φ ) e ^ r + ( Δ v θ + 2 r 2 v r , θ − 1 r 2 sin 2 θ v θ − 2 cos θ r 2 sin 2 θ v φ , φ ) e ^ θ + ( Δ v φ + 2 cos θ r 2 sin 2 θ v θ , φ − 1 r 2 sin 2 θ v φ + 2 r 2 sin θ v r , φ ) e ^ φ {\displaystyle {\begin{aligned}&\left({\frac {\partial ^{2}}{\partial r^{2}}}+{\frac {2}{r}}{\frac {\partial }{\partial r}}+{\frac {1}{r^{2}}}{\frac {\partial ^{2}}{\partial \theta ^{2}}}+{\frac {1}{r^{2}\tan \theta }}{\frac {\partial }{\partial \theta }}+{\frac {1}{r^{2}\sin ^{2}\theta }}{\frac {\partial ^{2}}{\partial \varphi ^{2}}}\right)\cdot (v_{r}{\hat {e}}_{r}+v_{\theta }{\hat {e}}_{\theta }+v_{\varphi }{\hat {e}}_{\varphi })\\=&{\frac {\partial ^{2}}{\partial r^{2}}}(v_{r}{\hat {e}}_{r}+v_{\theta }{\hat {e}}_{\theta }+v_{\varphi }{\hat {e}}_{\varphi })+{\frac {2}{r}}{\frac {\partial }{\partial r}}(v_{r}{\hat {e}}_{r}+v_{\theta }{\hat {e}}_{\theta }+v_{\varphi }{\hat {e}}_{\varphi })+{\frac {1}{r^{2}}}{\frac {\partial ^{2}}{\partial \theta ^{2}}}(v_{r}{\hat {e}}_{r}+v_{\theta }{\hat {e}}_{\theta }+v_{\varphi }{\hat {e}}_{\varphi })\\&+{\frac {1}{r^{2}\tan \theta }}{\frac {\partial }{\partial \theta }}(v_{r}{\hat {e}}_{r}+v_{\theta }{\hat {e}}_{\theta }+v_{\varphi }{\hat {e}}_{\varphi })+{\frac {1}{r^{2}\sin ^{2}\theta }}{\frac {\partial ^{2}}{\partial \varphi ^{2}}}(v_{r}{\hat {e}}_{r}+v_{\theta }{\hat {e}}_{\theta }+v_{\varphi }{\hat {e}}_{\varphi })\\=&v_{r,rr}{\hat {e}}_{r}+v_{\theta ,rr}{\hat {e}}_{\theta }+v_{\varphi ,rr}{\hat {e}}_{\varphi }+{\frac {2}{r}}v_{r,r}{\hat {e}}_{r}+{\frac {2}{r}}v_{\theta ,r}{\hat {e}}_{\theta }+{\frac {2}{r}}v_{\varphi ,r}{\hat {e}}_{\varphi }\\&+{\frac {1}{r^{2}}}{\frac {\partial }{\partial \theta }}(v_{r,\theta }{\hat {e}}_{r}+v_{r}{\hat {e}}_{\theta }+v_{\theta ,\theta }{\hat {e}}_{\theta }-v_{\theta }{\hat {e}}_{r}+v_{\varphi ,\theta }{\hat {e}}_{\varphi })\\&+{\frac {1}{r^{2}\tan \theta }}(v_{r,\theta }{\hat {e}}_{r}+v_{r}{\hat {e}}_{\theta }+v_{\theta ,\theta }{\hat {e}}_{\theta }-v_{\theta }{\hat {e}}_{r}+v_{\varphi ,\theta }{\hat {e}}_{\varphi })\\&+{\frac {1}{r^{2}\sin ^{2}\theta }}{\frac {\partial }{\partial \varphi }}(v_{r,\varphi }{\hat {e}}_{r}+\sin \theta v_{r}{\hat {e}}_{\varphi }+v_{\theta ,\varphi }{\hat {e}}_{\theta }+\cos \theta v_{\theta }{\hat {e}}_{\varphi }+v_{\varphi ,\varphi }{\hat {e}}_{\varphi }-\sin \theta v_{\varphi }{\hat {e}}_{r}-\cos \theta v_{\varphi }{\hat {e}}_{\theta })\\=&v_{r,rr}{\hat {e}}_{r}+v_{\theta ,rr}{\hat {e}}_{\theta }+v_{\varphi ,rr}{\hat {e}}_{\varphi }+{\frac {2}{r}}v_{r,r}{\hat {e}}_{r}+{\frac {2}{r}}v_{\theta ,r}{\hat {e}}_{\theta }+{\frac {2}{r}}v_{\varphi ,r}{\hat {e}}_{\varphi }\\&+{\frac {1}{r^{2}}}(v_{r,\theta \theta }{\hat {e}}_{r}+v_{r,\theta }{\hat {e}}_{\theta }+v_{r,\theta }{\hat {e}}_{\theta }-v_{r}{\hat {e}}_{r}+v_{\theta ,\theta \theta }{\hat {e}}_{\theta }-v_{\theta ,\theta }{\hat {e}}_{r}-v_{\theta ,\theta }{\hat {e}}_{r}-v_{\theta }{\hat {e}}_{\theta }+v_{\varphi ,\theta \theta }{\hat {e}}_{\varphi })\\&+{\frac {1}{r^{2}\tan \theta }}(v_{r,\theta }{\hat {e}}_{r}+v_{r}{\hat {e}}_{\theta }+v_{\theta ,\theta }{\hat {e}}_{\theta }-v_{\theta }{\hat {e}}_{r}+v_{\varphi ,\theta }{\hat {e}}_{\varphi })\\&+{\frac {1}{r^{2}\sin ^{2}\theta }}(v_{r,\varphi \varphi }{\hat {e}}_{r}+\sin \theta v_{r,\varphi }{\hat {e}}_{\varphi }+\sin \theta v_{r,\varphi }{\hat {e}}_{\varphi }-\sin ^{2}\theta v_{r}{\hat {e}}_{r}-\sin \theta \cos \theta v_{r}{\hat {e}}_{\theta }\\&+v_{\theta ,\varphi \varphi }{\hat {e}}_{\theta }+\cos \theta v_{\theta ,\varphi }{\hat {e}}_{\varphi }+\cos \theta v_{\theta ,\varphi }{\hat {e}}_{\varphi }-\sin \theta \cos \theta v_{\theta }{\hat {e}}_{r}-\cos ^{2}\theta v_{\theta }{\hat {e}}_{\theta }\\&+v_{\varphi ,\varphi \varphi }{\hat {e}}_{\varphi }-\sin \theta v_{\varphi ,\varphi }{\hat {e}}_{r}-\cos \theta v_{\varphi ,\varphi }{\hat {e}}_{\theta }-\sin \theta v_{\varphi ,\varphi }{\hat {e}}_{r}-\sin ^{2}\theta v_{\varphi }{\hat {e}}_{\varphi }\\&-\cos \theta v_{\varphi ,\varphi }{\hat {e}}_{\theta }-\cos ^{2}\theta v_{\varphi }{\hat {e}}_{\varphi })\\=&{\Bigl (}v_{r,rr}+{\frac {2}{r}}v_{r,r}+{\frac {1}{r^{2}}}v_{r,\theta \theta }+{\frac {1}{r^{2}\tan \theta }}v_{r,\theta }+{\frac {1}{r^{2}\sin ^{2}\theta }}v_{r,\varphi \varphi }\\&\qquad -{\frac {1}{r^{2}}}v_{r}-{\frac {1}{r^{2}}}v_{\theta ,\theta }-{\frac {1}{r^{2}}}v_{\theta ,\theta }-{\frac {1}{r^{2}\tan \theta }}v_{\theta }-{\frac {1}{r^{2}}}v_{r}-{\frac {\cos \theta }{r^{2}\sin \theta }}v_{\theta }-{\frac {1}{r^{2}\sin \theta }}v_{\varphi ,\varphi }-{\frac {1}{r^{2}\sin \theta }}v_{\varphi ,\varphi }{\Bigr )}{\hat {e}}_{r}\\&+{\Bigl (}v_{\theta ,rr}+{\frac {2}{r}}v_{\theta ,r}+{\frac {1}{r^{2}}}v_{\theta ,\theta \theta }+{\frac {1}{r^{2}\tan \theta }}v_{\theta ,\theta }+{\frac {1}{r^{2}\sin ^{2}\theta }}v_{\theta ,\varphi \varphi }\\&\qquad +{\frac {2}{r^{2}}}v_{r,\theta }-{\frac {1}{r^{2}}}v_{\theta }+{\frac {1}{r^{2}\tan \theta }}v_{r}-{\frac {\cos \theta }{r^{2}\sin \theta }}v_{r}-{\frac {\cos ^{2}\theta }{r^{2}\sin ^{2}\theta }}v_{\theta }-{\frac {2\cos \theta }{r^{2}\sin ^{2}\theta }}v_{\varphi ,\varphi }{\Bigr )}{\hat {e}}_{\theta }\\&+{\Bigl (}v_{\varphi ,rr}+{\frac {2}{r}}v_{\varphi ,r}+{\frac {1}{r^{2}}}v_{\varphi ,\theta \theta }+{\frac {1}{r^{2}\tan \theta }}v_{\varphi ,\theta }+{\frac {1}{r^{2}\sin ^{2}\theta }}v_{\varphi ,\varphi \varphi }\\&\qquad +{\frac {2}{r^{2}\sin \theta }}v_{r,\varphi }+{\frac {2\cos \theta }{r^{2}\sin ^{2}\theta }}v_{\theta ,\varphi }-{\frac {\sin ^{2}\theta +\cos ^{2}\theta }{r^{2}\sin ^{2}\theta }}v_{\varphi }{\Bigr )}{\hat {e}}_{\varphi }\\=&\left(\Delta v_{r}-{\frac {2}{r^{2}}}v_{r}-{\frac {2}{r^{2}}}v_{\theta ,\theta }-{\frac {2}{r^{2}\tan \theta }}v_{\theta }-{\frac {2}{r^{2}\sin \theta }}v_{\varphi ,\varphi }\right){\hat {e}}_{r}\\&+\left(\Delta v_{\theta }+{\frac {2}{r^{2}}}v_{r,\theta }-{\frac {1}{r^{2}\sin ^{2}\theta }}v_{\theta }-{\frac {2\cos \theta }{r^{2}\sin ^{2}\theta }}v_{\varphi ,\varphi }\right){\hat {e}}_{\theta }\\&+\left(\Delta v_{\varphi }+{\frac {2\cos \theta }{r^{2}\sin ^{2}\theta }}v_{\theta ,\varphi }-{\frac {1}{r^{2}\sin ^{2}\theta }}v_{\varphi }+{\frac {2}{r^{2}\sin \theta }}v_{r,\varphi }\right){\hat {e}}_{\varphi }\end{aligned}}}
( ∂ 2 ∂ r 2 + 2 r ∂ ∂ r + 1 r 2 ∂ 2 ∂ θ 2 + 1 r 2 tan θ ∂ ∂ θ + 1 r 2 sin 2 θ ∂ 2 ∂ φ 2 ) ⋅ ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) = ∂ 2 ∂ r 2 ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 2 r ∂ ∂ r ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 1 r 2 ∂ 2 ∂ θ 2 ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 1 r 2 tan θ ∂ ∂ θ ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) + 1 r 2 sin 2 θ ∂ 2 ∂ φ 2 ( v r e ^ r + v θ e ^ θ + v φ e ^ φ ) = v r , r r e ^ r + v θ , r r e ^ θ + v φ , r r e ^ φ + 2 r v r , r e ^ r + 2 r v θ , r e ^ θ + 2 r v φ , r e ^ φ + 1 r 2 ∂ ∂ θ ( v r , θ e ^ r + v r e ^ θ + v θ , θ e ^ θ − v θ e ^ r + v φ , θ e ^ φ ) + 1 r 2 tan θ ( v r , θ e ^ r + v r e ^ θ + v θ , θ e ^ θ − v θ e ^ r + v φ , θ e ^ φ ) + 1 r 2 sin 2 θ ∂ ∂ φ ( v r , φ e ^ r + sin θ v r e ^ φ + v θ , φ e ^ θ + cos θ v θ e ^ φ + v φ , φ e ^ φ − sin θ v φ e ^ r − cos θ v φ e ^ θ ) = v r , r r e ^ r + v θ , r r e ^ θ + v φ , r r e ^ φ + 2 r v r , r e ^ r + 2 r v θ , r e ^ θ + 2 r v φ , r e ^ φ + 1 r 2 ( v r , θ θ e ^ r + v r , θ e ^ θ + v r , θ e ^ θ − v r e ^ r + v θ , θ θ e ^ θ − v θ , θ e ^ r − v θ , θ e ^ r − v θ e ^ θ + v φ , θ θ e ^ φ ) + 1 r 2 tan θ ( v r , θ e ^ r + v r e ^ θ + v θ , θ e ^ θ − v θ e ^ r + v φ , θ e ^ φ ) + 1 r 2 sin 2 θ ( v r , φ φ e ^ r + sin θ v r , φ e ^ φ + sin θ v r , φ e ^ φ − sin 2 θ v r e ^ r − sin θ cos θ v r e ^ θ + v θ , φ φ e ^ θ + cos θ v θ , φ e ^ φ + cos θ v θ , φ e ^ φ − sin θ cos θ v θ e ^ r − cos 2 θ v θ e ^ θ + v φ , φ φ e ^ φ − sin θ v φ , φ e ^ r − cos θ v φ , φ e ^ θ − sin θ v φ , φ e ^ r − sin 2 θ v φ e ^ φ − cos θ v φ , φ e ^ θ − cos 2 θ v φ e ^ φ ) = ( v r , r r + 2 r v r , r + 1 r 2 v r , θ θ + 1 r 2 tan θ v r , θ + 1 r 2 sin 2 θ v r , φ φ − 1 r 2 v r − 1 r 2 v θ , θ − 1 r 2 v θ , θ − 1 r 2 tan θ v θ − 1 r 2 v r − cos θ r 2 sin θ v θ − 1 r 2 sin θ v φ , φ − 1 r 2 sin θ v φ , φ ) e ^ r + ( v θ , r r + 2 r v θ , r + 1 r 2 v θ , θ θ + 1 r 2 tan θ v θ , θ + 1 r 2 sin 2 θ v θ , φ φ + 2 r 2 v r , θ − 1 r 2 v θ + 1 r 2 tan θ v r − cos θ r 2 sin θ v r − cos 2 θ r 2 sin 2 θ v θ − 2 cos θ r 2 sin 2 θ v φ , φ ) e ^ θ + ( v φ , r r + 2 r v φ , r + 1 r 2 v φ , θ θ + 1 r 2 tan θ v φ , θ + 1 r 2 sin 2 θ v φ , φ φ + 2 r 2 sin θ v r , φ + 2 cos θ r 2 sin 2 θ v θ , φ − sin 2 θ + cos 2 θ r 2 sin 2 θ v φ ) e ^ φ = ( Δ v r − 2 r 2 v r − 2 r 2 v θ , θ − 2 r 2 tan θ v θ − 2 r 2 sin θ v φ , φ ) e ^ r + ( Δ v θ + 2 r 2 v r , θ − 1 r 2 sin 2 θ v θ − 2 cos θ r 2 sin 2 θ v φ , φ ) e ^ θ + ( Δ v φ + 2 cos θ r 2 sin 2 θ v θ , φ − 1 r 2 sin 2 θ v φ + 2 r 2 sin θ v r , φ ) e ^ φ
div ~ T = d i v ~ T = div ( T ⊤ ) {\displaystyle {\widetilde {\operatorname {div} }}T=\operatorname {\widetilde {div}} T=\operatorname {div} (T^{\top })}
1 7 = 0 , 142857 ¯ {\displaystyle {\frac {1}{7}}=0,{\overline {142857}}}
d i v ~ T = d i v ~ T = d i v ( T ⊤ ) phab:T352609
1 7 = 0 , 1 4 2 8 5 7 ‾ phab:T352698
σ a 2 {\displaystyle \sigma _{a}^{2}}
z = erf − 1 ( p ) {\displaystyle z=\operatorname {erf} ^{-1}(p)}
σ a 2
z = e r f − 1 ( p )