List questions from spectral-theory

Published on 20 Sep 2023 - 2:16

34

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essential range of function,range and spectrum

Published on 20 Sep 2023 - 5:54

36

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How to prove $G_{A^*}\supseteq (V G_A)^\perp$?

Published on 23 Sep 2023 - 17:57

34

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Any concise proof for QR algorithm?

Published on 26 Sep 2023 - 9:51

159

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Nonlinear ODE with (pseudo-)spectral method

Published on 25 Mar 2026 - 23:35

82

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Question about proof that normal operators have invariant subspace

Published on 25 Mar 2026 - 22:09

38

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"current variable function" in Arveson's Short Course on Spectral Theory

Published on 02 Oct 2023 - 8:38

48

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Heat flow outside a disk

Published on 29 Mar 2026 - 8:56

21

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Estimate for the trace of some self adjoint non negative trace class operators

Published on 07 Oct 2023 - 16:38

42

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Computing Spectrum of Linear Differential Operator non-constant Coefficients

Published on 26 Mar 2026 - 22:17

96

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Spectral theorem and invertible operators

Published on 26 Mar 2026 - 6:33

36

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Existence of a resonance (or lack of it) for Schrodinger operators

Published on 13 Oct 2023 - 16:47

52

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Fourier expansion of $f(x)^{-1/2}$ given that of $f(x)$?

Published on 13 Oct 2023 - 22:34

138

Views

Equality $f(T) = U^{*}f(S)U$ for continuous functions on operators

Published on 17 Oct 2023 - 9:21

41

Views

Question on spectral theorem for unitary operator

Published on 17 Oct 2023 - 17:50

List Question

bringing $-i \frac{d}{dx}$ to the form $U^* M_f U$

essential range of function,range and spectrum

How to prove $G_{A^*}\supseteq (V G_A)^\perp$?

Any concise proof for QR algorithm?

Nonlinear ODE with (pseudo-)spectral method

Question about proof that normal operators have invariant subspace

"current variable function" in Arveson's Short Course on Spectral Theory

Heat flow outside a disk

Estimate for the trace of some self adjoint non negative trace class operators

Computing Spectrum of Linear Differential Operator non-constant Coefficients

Spectral theorem and invertible operators

Existence of a resonance (or lack of it) for Schrodinger operators

Fourier expansion of $f(x)^{-1/2}$ given that of $f(x)$?

Equality $f(T) = U^{*}f(S)U$ for continuous functions on operators

Question on spectral theorem for unitary operator

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