Liddo

Member for 10 years, 4 months
Last seen more than a month ago

Summary

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2021
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Top tag

abstract-algebra

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Questions

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8

$u^{2}-1$ is a unit in a ring $A$

Apr 19, 2021

4

Two skeleton of one category are isomorphic

Dec 5, 2015

4

Ramanujan congruence mod 7

Dec 5, 2018

3

A short exact sequence is pure

Jan 21, 2020

3

A cyclic chain complex, contracting homotopy

Mar 28, 2020

Answers

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3

If $a,b\in G$ and $ab=ba$, prove $(ab)^{|a||b|}=e$

Jan 28, 2014

3

Finding $\iint_D \nabla \cdot F \; \mathrm{d}A$

May 19, 2014

1

Calculus of a limit

Apr 6, 2020

0

$\operatorname{Hom}_B$ of flat modules is flat over $A$?

May 1, 2020

0

Decide whether the following $f:\textbf{R}^{n}\to\textbf{R}^{m}$ function is a linear mapping or not

Jun 23, 2020

Tags

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calculus

4

Score

2

posts

abstract-algebra

3

Score

9

posts

multivariable-calculus

3

Score

3

posts

integration

2

Score

2

posts

category-theory

0

Score

16

posts

Reputation

+10

Functor Connected Component and Indescrete functor

+10

Given an adjunction $\langle F,G,\eta, \epsilon\rangle$ with either $F$ or $G$ full, prove that $G\epsilon$ is invertible

+10

Gaussian primes with the same norm

+10

Gaussian primes $\alpha$ and $\beta$ with $\mathrm{gcd}(\mathrm{Im}(\alpha),\mathrm{Im}(\beta))=1$

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Apr 19, 2021

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