• In mathematics, a HilbertSchmidt operator, named after David Hilbert and Erhard Schmidt, is a bounded operator A : H → H {\displaystyle A\colon H\to...
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  • In mathematics, a HilbertSchmidt integral operator is a type of integral transform. Specifically, given a domain Ω in Rn, any k : Ω × Ω → C such that...
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  • In mathematics, HilbertSchmidt may refer to a HilbertSchmidt operator; a HilbertSchmidt integral operator; the HilbertSchmidt theorem. This disambiguation...
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    class of operators known as HilbertSchmidt operators that are especially important in the study of integral equations. Fredholm operators differ from...
    128 KB (17,469 words) - 06:51, 28 May 2025
  • Hilbert operator may refer to: The epsilon operator in Hilbert's epsilon calculus The HilbertSchmidt operators on a Hilbert space HilbertSchmidt integral...
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  • bounded operator T : H 1 ⊗ H 2 → K {\displaystyle T:H_{1}\otimes H_{2}\to K} such that L = T p . {\displaystyle L=Tp.} A weakly Hilbert-Schmidt mapping...
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  • It states that a bounded linear operator between two Hilbert spaces is γ-radonifying if it is a HilbertSchmidt operator. The result is also important in...
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  • operator on Hilbert space is an extension of the concept of a matrix acting on a finite-dimensional vector space; in Hilbert space, compact operators...
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  • integral operator. T is equal to the composition of two Hilbert-Schmidt operators. | T | {\textstyle {\sqrt {|T|}}} is a Hilbert-Schmidt operator. Let T...
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  • L ( H ) {\displaystyle L(H)} are the trace-class, HilbertSchmidt operators, and compact operators. F ( H ) {\displaystyle F(H)} is dense in all three...
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    arithmetic of ends Hilbert's paradox of the Grand Hotel HilbertSchmidt operator Hilbert–Smith conjecture Hilbert–Burch theorem Hilbert's irreducibility theorem...
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  • Thumbnail for Erhard Schmidt
    twentieth century. Schmidt was born in Tartu (German: Dorpat), in the Governorate of Livonia (now Estonia). His advisor was David Hilbert and he was awarded...
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  • the HilbertSchmidt theorem, also known as the eigenfunction expansion theorem, is a fundamental result concerning compact, self-adjoint operators on Hilbert...
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  • analysis and harmonic analysis. The two main singular integral operators, the Hilbert transform and the Cauchy transform, can be defined for any smooth...
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  • is a HilbertSchmidt operator, hence in particular is compact. V has no eigenvalues and therefore, by the spectral theory of compact operators, its spectrum...
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  • Schatten norm (category Operator theory)
    the trace class norm and the HilbertSchmidt norm. Let H 1 {\displaystyle H_{1}} , H 2 {\displaystyle H_{2}} be Hilbert spaces, and T {\displaystyle T}...
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  • }^{-1/2}C_{\nu }^{1/2})(C_{\mu }^{-1/2}C_{\nu }^{1/2})^{\ast }-I} is a HilbertSchmidt operator on H ¯ . {\displaystyle {\bar {H}}.} A simple consequence of the...
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  • pairs of points. Associated to K is a linear operator (more specifically a HilbertSchmidt integral operator when the interval is compact) on functions...
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  • functional analysis, a normal operator on a complex Hilbert space H {\displaystyle H} is a continuous linear operator N : H → H {\displaystyle N\colon...
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  • mathematics, a symmetrizable compact operator is a compact operator on a Hilbert space that can be composed with a positive operator with trivial kernel to produce...
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  • Schatten-class operator is a bounded linear operator on a Hilbert space with finite pth Schatten norm. The space of pth Schatten-class operators is a Banach...
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  • strong operator topology to H. Moreover, if Vf(z) = f(H(z)), then VHV−1 − H is an operator with smooth kernel, so a HilbertSchmidt operator. In fact...
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  • conjecture HilbertSchmidt inner product HilbertSchmidt norm HilbertSchmidt operator HilbertSchmidt integral operator HilbertSchmidt theorem Hilbert–Serre...
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  • their counter-part in finite dimension. In Hilbert spaces such operators are usually called trace class operators and one can define such things as the trace...
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  • Weyl–von Neumann theorem (category Operator theory)
    operator theory due to Hermann Weyl and John von Neumann. It states that, after the addition of a compact operator (Weyl (1909)) or HilbertSchmidt operator...
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  • \varphi _{2}} , ... are the orthonormal eigenfunctions of the linear HilbertSchmidt operator G : L 2 ( T ) → L 2 ( T ) , G ( f ) = ∫ T G ( s , t ) f ( s ) d...
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  • {\displaystyle {\mathfrak {A}}} . The HilbertSchmidt operators on an infinite-dimensional Hilbert space form a Hilbert algebra with inner product (a, b)...
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  • finite-rank operators in an infinite-dimensional setting. When Y {\displaystyle Y} is a Hilbert space, it is true that any compact operator is a limit...
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  • Euclidean space Fundamental theorem of Hilbert spaces Gram–Schmidt process Hellinger–Toeplitz theorem Hilbert space Inner product space Legendre polynomials...
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  • definition the Neumann–Poincaré operator TK is the operator on L2(∂Ω) given by the kernel K(z,w). It is a HilbertSchmidt operator since the kernel is continuous...
    60 KB (11,017 words) - 03:48, 30 April 2025