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GBA
  • Member for 2 years, 2 months
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8 votes
1 answer
131 views

Proving an identity regarding character of irreducible representation

7 votes
1 answer
78 views

Calculating contour integral with keyhole contour [duplicate]

5 votes
0 answers
81 views

Proving an equivalence to convergence in $L_\infty$ norm

4 votes
1 answer
101 views

Orthonormal sequence in L$^2(0,1)$

4 votes
1 answer
70 views

Question about using Sard's theorem in Whitney's weak embedding theorem

4 votes
1 answer
135 views

Proving that $L^1(X,M,\mu)$ is not reflexive

4 votes
0 answers
66 views

Proving isomorphism between two vector spaces of homomorphisms

3 votes
2 answers
95 views

If $\int_\Omega f d\mu < \infty$ and $f$ is non-negative, then $\mu(\{\omega\in\Omega:f(\omega)=\infty\})=0$

3 votes
1 answer
91 views

Measure given by $\nu(E)=\int_E gd\mu$. Want to prove $\int_\Omega fd\nu=\int_\Omega fgd\mu$

3 votes
1 answer
55 views

Determine if the following autonomous differential equation has periodic solutions

3 votes
1 answer
59 views

Finding conformal map from a region with a slit to upper half plane

3 votes
0 answers
34 views

Proving equality between two limsups

3 votes
1 answer
88 views

Square in a finite field [duplicate]

3 votes
2 answers
208 views

Why is the Zariski topology coarser than standard topology

2 votes
0 answers
32 views

Inclusion of ideal in a finite union of ideals [duplicate]

2 votes
3 answers
72 views

Does a sequence satisfying this condition converge?

2 votes
1 answer
43 views

$\Bbb{Q}/\Bbb{Z}$ as a $\Bbb{Z}$-module has no free non-trivial submodules

2 votes
1 answer
82 views

Convergence of an improper integral involving trigonometric functions

2 votes
0 answers
45 views

Finding normalization of the ring $\Bbb{C}[x,y]/\langle y^2-x^5 \rangle$

2 votes
0 answers
34 views

Smooth curves in a star-shaped region in $\Bbb{R}^2$

2 votes
2 answers
124 views

Finding radical of an ideal using Nullstellensatz

2 votes
3 answers
138 views

A closed set in $\operatorname{Spec}(R)$ is irreducible iff $I(X)$ is prime

2 votes
1 answer
50 views

How to prove differentiability of the following unknown function

2 votes
1 answer
72 views

Isomorphism of group rings

2 votes
0 answers
35 views

Constructing eigenvectors of groups

2 votes
1 answer
54 views

Is the following argument legal?

2 votes
1 answer
72 views

Multiple choice question - series convergence

2 votes
3 answers
57 views

Proving the following matrix is diagonalizable

2 votes
2 answers
189 views

Homeomorphism between $\mathbb{R}^2$ and the open unit disc

2 votes
0 answers
31 views

Inner product given by its orthonormal basis

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