List questions from functional-analysis

Published on 26 Mar 2026 - 13:51

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Injectivity and the lower bound of an operator

Published on 26 Mar 2026 - 12:06

107

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Common solution to Integral Equation and Differential Equation

Published on 25 Mar 2026 - 0:08

199

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Integral Transform (Weierstrass transform of PDF of t-distributions)

Published on 23 Jan 2018 - 21:02

148

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How can we show that $E\:\hat⊗_π F→E\:\hat⊗_ε\:F↪\mathfrak B(E',F')$ is injective iff $E\:\hat⊗_π F→(E'⊗_εF')'↪\mathfrak B(E',F')$ is injective?

Published on 25 Mar 2026 - 17:11

49

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On differentiation with respect to functions

Published on 24 Jan 2018 - 0:57

446

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The finest locally convex topology is not metrizable

Published on 25 Mar 2026 - 0:15

55

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If $(x^{(n)})^∞_{n=m}$ is Cauchy and if some subsequence of $(x^{(n)})^∞_{n=m}$ converges then so does $(x^{(n)})^∞_{n=m}$

Published on 20 Mar 2026 - 10:30

289

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Is an Operator to the Zeroeth Power the Identity?

Published on 27 Mar 2026 - 0:02

55

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Why is this Linear map closable?

Published on 30 Mar 2026 - 19:08

56

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Show directly that if $E_1\geqslant E_2\geqslant\dots$, then $E_i\rightarrow \bigwedge E_i$ strongly.

Published on 31 Mar 2026 - 4:04

1.4k

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Is the total variation norm of a measure equal to its norm as a bounded functional?

Published on 25 Mar 2026 - 6:12

80

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Is it possible to construct a compact operator $A$ such that all polynomials of degree $1$ are in the nullspace of $I-A$?

Published on 22 Mar 2026 - 8:30

294

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Sufficient conditions for contraction mapping for unbounded functions?

Published on 26 Mar 2026 - 12:13

105

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Question on whether the Lebesgue measure of this set is strictly positive

Published on 25 Mar 2026 - 1:18

List Question

Minkowski sums of convex and bounded sets

Injectivity and the lower bound of an operator

Common solution to Integral Equation and Differential Equation

Integral Transform (Weierstrass transform of PDF of t-distributions)

How can we show that $E\:\hat⊗_π F→E\:\hat⊗_ε\:F↪\mathfrak B(E',F')$ is injective iff $E\:\hat⊗_π F→(E'⊗_εF')'↪\mathfrak B(E',F')$ is injective?

On differentiation with respect to functions

The finest locally convex topology is not metrizable

If $(x^{(n)})^∞_{n=m}$ is Cauchy and if some subsequence of $(x^{(n)})^∞_{n=m}$ converges then so does $(x^{(n)})^∞_{n=m}$

Is an Operator to the Zeroeth Power the Identity?

Why is this Linear map closable?

Show directly that if $E_1\geqslant E_2\geqslant\dots$, then $E_i\rightarrow \bigwedge E_i$ strongly.

Is the total variation norm of a measure equal to its norm as a bounded functional?

Is it possible to construct a compact operator $A$ such that all polynomials of degree $1$ are in the nullspace of $I-A$?

Sufficient conditions for contraction mapping for unbounded functions?

Question on whether the Lebesgue measure of this set is strictly positive

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