John

Member for 6 years, 2 months
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calculus

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15

What is a subsequence in calculus?

Sep 23, 2017

8

If $A$ is an $n$ by $n$ integer matrix such that $A^3 = I$, then $\operatorname{tr}(A) = n\mod3$

Dec 17, 2018

7

Prove that $tr(A)^p = tr(A^p)\bmod p$ where $A$ is a square integer matrix and $p$ is a prime number.

Dec 18, 2018

7

How to solve a system of linear equations modulo n?

Dec 7, 2017

6

Let $G$ be a finite matrix group in $GL_2(Q)$ such that every matrix $A\in G$ has integer entries. Prove $A^{12}= I$ for each $A$.

Oct 13, 2018

Answers

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1

Find all values of $k$ such that the series with terms $k^n / n^k$ converges.

Mar 23, 2018

1

Probability - Interview Question

Dec 22, 2018

1

If $T$ is a maximal $L$ theory such that every finite subset of $T$ is consistent, then either $\sigma \in T$ or $\lnot \sigma \in T$.

Nov 19, 2020

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calculus

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sequences-and-series

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probability

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first-order-logic

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convergence-divergence

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6

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Reputation

+10

What does "Consider R as an vector space over Q" mean?

+10

Distribution of waiting time of "final" customer in finite capacity $M/M/2$ queue with $\mu_1 = 1, \mu_2 = 2, \lambda = 3$

+40

Explaining the concept of identities in Math to a grade 8 student

+10

Prove that the set $A := \left\{ (x,y) \in \Bbb R_{> 0}^2 \mid xy \geq 1 \right\}$ is convex

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