User PseudoNeo

2 votes

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Why is the fundamental group of a prime, reducible 3-manifold $\mathbb{Z}$?

answered Jul 10, 2012 at 19:31

2 votes

Order of an element in $\mathbb{F}_q$ where $p^k = q$

answered Aug 1, 2012 at 15:47

2 votes

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A unitary matrix taking a real matrix to another real matrix, is it an orthogonal matrix?

answered Aug 2, 2012 at 19:40

1 vote

Multiple roots of a polynomial over a field of characteristic $p$

answered Jan 21, 2013 at 23:17

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Ramified coverings of a manifold

answered Nov 26, 2012 at 15:12

1 vote

group of order $198$

answered Jan 23, 2013 at 13:40

1 vote

Symmetric groups isomorph to dihedral groups.

answered Sep 30, 2014 at 9:26

1 vote

Non-Cyclic Subgroup of $GL(2, \mathbb Z)$

answered Feb 6, 2015 at 7:08

1 vote

Center of the unit group $R^\times$ of a ring.

answered Mar 27, 2013 at 14:51

1 vote

The relation between the algebraic dimensions of a vector space and its dual

answered May 26, 2015 at 13:48

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What is the meaning of $\Omega^o_n$?

answered May 18, 2015 at 8:11

1 vote

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The leaf of the foliation has countable basis

answered Apr 9, 2015 at 14:16

1 vote

Dehn twist generators for mapping class group of a punctured disc

answered Jan 18, 2018 at 23:42

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Curvature flow for convex planes curves

answered Jul 9, 2015 at 13:59

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Book for semisimple rings.

answered Sep 24, 2015 at 11:48

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Basis and dimensions

answered Oct 1, 2015 at 9:52

1 vote

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Are 3#4 and 3*#4composite knots isotopic?

answered Jan 29, 2016 at 16:28

1 vote

If $f,g$ are quadratic forms over $\mathbb{R}$ and $f$ is positive definite, can you reduce the both simultaneously to sum of squares?

answered Jul 11, 2016 at 15:25

1 vote

Prove that $\sin^4\theta+\cos^4\theta=\frac{3+\cos4\theta}{4}$

answered Sep 21, 2016 at 20:04

1 vote

What is the order of the following elements in this group?

answered Oct 24, 2016 at 5:02

1 vote

Linear independence of standard basis vectors from Vandermonde style vectors

answered Jul 22, 2016 at 15:11

0 votes

Prove that the quotient space $V/V^\perp$ is regular

answered Apr 7, 2017 at 10:17

0 votes

Very detailed book for topological K-theory

answered Nov 20, 2017 at 21:15

0 votes

Are there functions of boolean parameters that must evaluate more than two variables?

answered Aug 10, 2016 at 19:05

0 votes

Diffeomorphism of elementary symmetric polynomials

answered Jul 11, 2016 at 14:36

0 votes

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Surjective group homomorphism $f:A_4\times \mathbb{Z}_2 \to S_3$

answered Jul 11, 2016 at 14:30

0 votes

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Can we recover the signature of a knot from an Alexander module presentation matrix?

answered Jan 18, 2018 at 22:55

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Degree of minimal polynomial when number of distinct eigenvalues are given

answered Jan 30, 2021 at 22:43

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Generators of a subgroup of the modular group

answered Apr 14, 2015 at 9:21

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suppose $tr(A^k) = tr(B^k)$ for all $k$=$1,2,....$. why $A$ and $B$ are same characteristic polynomial? .

answered May 18, 2015 at 7:44

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120 Answers

Why is the fundamental group of a prime, reducible 3-manifold $\mathbb{Z}$?

Order of an element in $\mathbb{F}_q$ where $p^k = q$

A unitary matrix taking a real matrix to another real matrix, is it an orthogonal matrix?

Multiple roots of a polynomial over a field of characteristic $p$

Ramified coverings of a manifold

group of order $198$

Symmetric groups isomorph to dihedral groups.

Non-Cyclic Subgroup of $GL(2, \mathbb Z)$

Center of the unit group $R^\times$ of a ring.

The relation between the algebraic dimensions of a vector space and its dual

What is the meaning of $\Omega^o_n$?

The leaf of the foliation has countable basis

Dehn twist generators for mapping class group of a punctured disc

Curvature flow for convex planes curves

Book for semisimple rings.

Basis and dimensions

Are 3#4 and 3*#4composite knots isotopic?

If $f,g$ are quadratic forms over $\mathbb{R}$ and $f$ is positive definite, can you reduce the both simultaneously to sum of squares?

Prove that $\sin^4\theta+\cos^4\theta=\frac{3+\cos4\theta}{4}$

What is the order of the following elements in this group?

Linear independence of standard basis vectors from Vandermonde style vectors

Prove that the quotient space $V/V^\perp$ is regular

Very detailed book for topological K-theory

Are there functions of boolean parameters that must evaluate more than two variables?

Diffeomorphism of elementary symmetric polynomials

Surjective group homomorphism $f:A_4\times \mathbb{Z}_2 \to S_3$

Can we recover the signature of a knot from an Alexander module presentation matrix?

Degree of minimal polynomial when number of distinct eigenvalues are given

Generators of a subgroup of the modular group

suppose $tr(A^k) = tr(B^k)$ for all $k$=$1,2,....$. why $A$ and $B$ are same characteristic polynomial? .