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Mathematics : Recent Questions and Answers (Page 53)

Find answers to your questions about Mathematics or help others by answering their Mathematics questions.

What is the name for the distribution of values taken by a stochastic process?

Say we have a stochastic process $ {X_t}_{t in mathbb{I}}$ with index set $mathbb{I}$ where each random variable $X_t$ has the same measurable space $(Omega, mathcal{F})$...

Asked on 12/05/2021

0 answer

On Hypergeometric Series and OEIS Sequence

I have been searching an integer sequence in OEIS. The sequence is the following: OEIS A321234 (https://oeis.org/A321234) . So far, so good. However, this sequence is the...

Asked on 12/05/2021 by Mr. N

1 answer

Simple proof of: if $axequiv ay pmod{m}$, and $gcd(a,m)=1$, then $xequiv y$

I'm working on a proof of: "if $axequiv ay pmod{m}$, and $gcd(a,m)=1$, then $xequiv ypmod{m}$". Here's what I have so far: Suppose $axequiv aypmod{m}$, and ...

Asked on 12/05/2021

3 answer

Smoothly varying finite dimensional vector subspaces tracing out infinite dimensional locus

Is it possible that a smoothly varying finite dimensional vector subspaces tracing out infinite dimensional locus? More precisely, Let $E$ be a vertor bundle on a (compact) smooth manifold...

Asked on 12/05/2021 by Wei Xia

1 answer

Subsequence convergence in hausdorff topological space

Suppose $X$ is a Hausdorff topology space, and let ${x_n}_{n=1}^{infty} subset X$ be a sequence in $X$. Is the following statment true?${x_n}_{n=1}^{infty}$ has a subsequence convergeing...

Asked on 12/05/2021 by Yunfei

2 answer

Obtaining equality of two sets from connectedness

I’m reading a paper and I’m unable to verify arguments. I try to avoid technical terms in the paper by using simple set-theoretic notation. (a) Right now, I’m having ...

Asked on 12/05/2021 by Nothingone

1 answer

Description of irreducible representations of $SL(2,mathbb R)$.

Let $rho: SL(2,mathbb R) to GL(V)$ be an irreducible representation of $SL(2,mathbb R)$. A paper I am reading says $rho$ can be described as...

Asked on 12/05/2021

1 answer

Closed formula for the sum $a^1+a^4+a^9...$

I'm wondering if there is a closed formula for the sum $a^1+a^4+a^9...$ and more generally $a^{1^n}+a^{2^n}+a^{3^n}...$ for real $a$ and $n$ such that $|a|<1$ and...

Asked on 12/05/2021 by Kevin Lu

1 answer

Can we visualize the fact that a holomorphic function has the same derivative at a point in all directions?

A holomorphic function $f$ has the same derivative at a point in all directions, but can we visualize this fact? I guess probably not, at least if we try...

Asked on 12/05/2021

1 answer

Vacuously true statement

I want to know the truth value of : There exists an integer $n $such that if $n > 2,$ then $n^2 = 2n$. I will say...

Asked on 12/05/2021 by user117375

2 answer

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