List questions from solution-verification

Published on 17 Apr 2026 - 4:15

57

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Expressions for vector Laplacian on sphere don't match

Published on 13 Apr 2026 - 3:13

43

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Consistency in a matrix, given an unkown variable $k$

Published on 13 Apr 2026 - 1:30

82

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Question about counting measure

Published on 11 Apr 2026 - 13:14

82

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Proving that the zeros of the Riemann zeta function with real part $1/2$ is reflected upon the imaginary axis

Published on 15 Apr 2026 - 0:06

81

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How can we show that $(x_n)_n$ is a convergent sequence?

Published on 14 Apr 2026 - 23:45

667

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Writing a vector has a linear combination of two vectors: is the solution unique?

Published on 10 Apr 2026 - 12:36

52

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Verify if $\mathscr{P}_{2}(\mathbb{R})$ is in the span of $\{1+x,x+2x^2,1-x^2\}$

Published on 16 Apr 2026 - 15:12

88

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Convergence of derivative of continuous Markov chain

Published on 13 Apr 2026 - 23:39

70

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Linear dependence of the set of functions $\{\sin^2, \cos^2, 1\}$

Published on 09 Apr 2026 - 11:53

96

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Small exercise on Minkowski inequality

Published on 16 Apr 2026 - 16:29

277

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Given a convex quadrilateral $ABCD$, find the missing angle.

Published on 24 Apr 2026 - 19:54

252

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Show that $f^{-1}(K)$ is a subgroup of $G$

Published on 16 Apr 2026 - 12:41

97

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Let $I$ be an ideal of nilpotent elements. Show that if $a$ maps to a unit in $A/I$, then $a$ is a unit in $A$.

Published on 11 Apr 2026 - 4:39

36

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Topology generated by maps and subbase

Published on 26 Mar 2026 - 14:33

List Question

Let b, n be positive integers where n is prime. Then b|(4b+n) if and only if b=1 or b=n.

Expressions for vector Laplacian on sphere don't match

Consistency in a matrix, given an unkown variable $k$

Question about counting measure

Proving that the zeros of the Riemann zeta function with real part $1/2$ is reflected upon the imaginary axis

How can we show that $(x_n)_n$ is a convergent sequence?

Writing a vector has a linear combination of two vectors: is the solution unique?

Verify if $\mathscr{P}_{2}(\mathbb{R})$ is in the span of $\{1+x,x+2x^2,1-x^2\}$

Convergence of derivative of continuous Markov chain

Linear dependence of the set of functions $\{\sin^2, \cos^2, 1\}$

Small exercise on Minkowski inequality

Given a convex quadrilateral $ABCD$, find the missing angle.

Show that $f^{-1}(K)$ is a subgroup of $G$

Let $I$ be an ideal of nilpotent elements. Show that if $a$ maps to a unit in $A/I$, then $a$ is a unit in $A$.

Topology generated by maps and subbase

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