List questions from examples-counterexamples

Published on 06 Nov 2016 - 19:03

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Counterexamples to Von Neumann's theorem on closed subgroup of GL.

Published on 06 Nov 2016 - 21:40

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Define equivalence relation on set of integers with 6 distinct equivalence classes

Published on 01 Apr 2026 - 17:49

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Understanding the broad range of noncommutative rings

Published on 30 Mar 2026 - 3:01

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is $\frac{f}{g} $ measurable with this condition ...

Published on 08 Nov 2016 - 15:49

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Please refute my counterexample

Published on 26 Mar 2026 - 7:37

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Proof or counter example: Hilbert space

Published on 09 Nov 2016 - 14:51

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A Question on Semi-Totally Continuous Function

Published on 11 Nov 2016 - 1:28

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If $A<C$ is finite must $A<B,B<C$ be finite

Published on 12 Nov 2016 - 21:07

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Example of dynamical system where: $NW(f) \not\subset \overline{R(f)}$

Published on 13 Nov 2016 - 11:19

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Is counterexample a proof?

Published on 13 Nov 2016 - 13:51

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Convergence in $L^1$ in the case of product and quotient of random variables.

Published on 13 Nov 2016 - 16:18

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Function with simple partial sums of the Fourier series

Published on 13 Nov 2016 - 22:13

34

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A noetherian $R$-module $M$ with submodules $L,N$ s.t $L\cap N={0}$ and $M/N\cong L$

Published on 26 Mar 2026 - 19:00

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Do "exotic vectorfields" exist?

Published on 15 Nov 2016 - 3:26

List Question

$f,g$ are real valued functions on X .which of following options is true?

Counterexamples to Von Neumann's theorem on closed subgroup of GL.

Define equivalence relation on set of integers with 6 distinct equivalence classes

Understanding the broad range of noncommutative rings

is $\frac{f}{g} $ measurable with this condition ...

Please refute my counterexample

Proof or counter example: Hilbert space

A Question on Semi-Totally Continuous Function

If $A<C$ is finite must $A<B,B<C$ be finite

Example of dynamical system where: $NW(f) \not\subset \overline{R(f)}$

Is counterexample a proof?

Convergence in $L^1$ in the case of product and quotient of random variables.

Function with simple partial sums of the Fourier series

A noetherian $R$-module $M$ with submodules $L,N$ s.t $L\cap N={0}$ and $M/N\cong L$

Do "exotic vectorfields" exist?

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