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pax
  • Member for 9 years, 9 months
  • Last seen this week
  • Evanston, IL, United States
16 votes
Accepted

Proof of Wilson's Theorem using concept of group.

11 votes

Right module vs left module

8 votes

I'm looking for some mathematics that will challenge me as a year $12$ student.

6 votes
Accepted

The Integral $\int\limits_0^1$ $\frac{e^x-\sum^{n-1}_{i=0} \frac{x^i}{i!}}{x^n}dx$

6 votes
Accepted

Prove that A is idempotent without using Jordan form

6 votes
Accepted

Free $\mathbb{Z}_{2}$ action on the plane

6 votes
Accepted

Injectivity/surjectivity of the $\sin$ function restricted to the rationals

5 votes
Accepted

Product of nilpotent matrices invertible

5 votes
Accepted

$\lim_{n \to \infty} \frac{\log(f(n))}{\log n} = a$ - Interpretation

4 votes
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Geometric results following from sections of a bundle being a module

4 votes
Accepted

Question about field extension notation

4 votes
Accepted

Show that every group of order 48 has a nontrivial normal subgroup.

4 votes

Simplify a proposition of logic: $p ∨ (p ∧ (\lnot p ∧ q ∨ r ∧ (p ∧ r)))$

4 votes
Accepted

cohomology of total space

3 votes
Accepted

What is the definition of the dimension of an algebraic manifold?

3 votes
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Conjugation of a direct product

3 votes

Cohomology ring of $G$ based on its Sylow.

3 votes
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Extension of Scalars and Polynomial Rings

3 votes
Accepted

There is no continuous injective function $f:\mathbb{R}^n\longrightarrow\mathbb{R}^m$

3 votes
Accepted

Found this identity by accident

3 votes
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Curie-Weiss probability and expected value distribution?

3 votes
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Numerical solution of BSDEs

3 votes

How to prove $L$ is an invertible sheaf?

3 votes

Prove that for all $n,m,M \in\mathbb N$, there exists $k \in \mathbb N$ such that $ (m+k\cdot n)>M$.

3 votes
Accepted

How many ordered triples of integers which are between 0 and 10 inclusive do we actually have if $a * (b+c) = a * b +c$

3 votes
Accepted

Quotient group - explanation over explanation

3 votes

Let $ I $ be an ideal in $\mathbb Z [i]$. Show that $\mathbb Z[i] /I $ is finite.

3 votes

If $\lim\limits_{n \to \infty} \frac{a_n}{b_n}=1 \rightarrow \sum_{n=1}^\infty a_n = \sum_{n=1}^\infty b_n$

3 votes
Accepted

Find $x$ for inequality of $1+x+x^{2}+x^{3}+...+x^{99}\le0$

3 votes

Extension of rings decreasing Krull dimension

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