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1 vote
1 answer
2 views

Is there a minimal structure in a finite signature with this property?

0 votes
0 answers
13 views

Why is it the case that $|z-\alpha|\leq n\left|\frac{p(z)}{p'(z)}\right|$ for a polynomial $p$ of degree $n$ with root $\alpha$?

0 votes
0 answers
4 views

Understanding tensor fields in coordinates

0 votes
1 answer
21 views

Solution of Quasi Polynomial $x=-a-\frac{a}{2}e^{-3x}-ae^{-2x}-\frac{3a}{2}e^{-x}$

2 votes
2 answers
100 views

numerically solving a system of multivariate polynomials

1 vote
1 answer
14 views

Hessian of a function on a Riemannian manifold.

0 votes
0 answers
3 views

Correctness of direct numerical solution of ill-conditioned linear system

0 votes
0 answers
5 views

Find the value of $(\sqrt{-x}+\sqrt{y})^{-2024}$

0 votes
0 answers
4 views

Work by vector field along curve of intersection between sphere and plane

0 votes
1 answer
6 views

Finding the area of the region cut from the first quadrant by the curve

1 vote
1 answer
29 views

Isomorphism between finite fields with polynomials $a^2 + 1$ and $b^2 + b + 2$

-3 votes
0 answers
23 views

Norm in $ (L^2(\Bbb C),dz)$

1 vote
0 answers
22 views

Geometry - Solve a system using Wolfram Alpha

0 votes
0 answers
5 views

integral with hyperspherical coordinates?

0 votes
0 answers
9 views

Bounds for Chebyshev polynomials outside [-1,1]

1 vote
0 answers
20 views

Minimal irrep of $ PSL(2,p) $

1 vote
1 answer
26 views

Conditions under which induced $\mathcal{L}_2$ system gain is equal to induced $\mathcal{L}_\infty$ system gain

0 votes
0 answers
3 views

Trying to figure out Sgn function values

1 vote
0 answers
12 views

Are the positive rationals definable from the rationals with multiplication?

0 votes
0 answers
6 views

How to compute 3D ellipsoid transformation from three 2D orthographic projections?

0 votes
0 answers
7 views

Asymptotic behavior of an infinite product

0 votes
0 answers
12 views

limit $\frac{\sqrt{t_n^2+1}-\sqrt{s_n^2+1}}{t_n-s_n}$ as $t_n-s_n \to + \infty$, where $t_n > s_n, \forall n.$

0 votes
0 answers
16 views

Find the number of $7$-element subsets $\{a,b,c,d,e,f,g\}$ of $\{1,\cdots,14\}$ such that $7 \mid (a+ b+c+d+e+f+g)$

0 votes
0 answers
4 views

Finding a special Carmichael number

0 votes
0 answers
9 views

Combinatorial problem related to Jordan Canonical Form

0 votes
0 answers
12 views

Group of 8 people

0 votes
0 answers
7 views

Why does Dirac's delta distribution have an infinite energy?

4 votes
1 answer
76 views

Is the quadratic formula called Bhaskara Formula in any other country beyond Brazil?

2 votes
0 answers
10 views

Reference request for class field theory in arithmetic geometry

0 votes
1 answer
19 views

$\sum{z^n\over (n!)^\alpha}$ is an entire function of order $1/\alpha$

0 votes
0 answers
2 views

Derivative of joint density function of Mutual Information using Partial Volume estimation

1 vote
0 answers
19 views

Maximum number of distinct elements in matrix of size $p \times p$, given for any row/column, there are $\le p-1$ distinct elements.

0 votes
1 answer
29 views

Is $R$ an equivalence relation or not?

1 vote
1 answer
376 views

Haar measure on SU(n)

0 votes
0 answers
21 views

Optimization of an inner product with respect to an operator

0 votes
1 answer
20 views

Existence of Perfect subset for any given measure

0 votes
1 answer
21 views

Calculating total intersection in a probability space from smaller intersections

0 votes
0 answers
5 views

How to find the maximum value of the function f(x,y,z) with the condition.

0 votes
0 answers
15 views

Equivalence between constants and 0-ary functions

1 vote
1 answer
10 views

To give some example where $x_n\rightarrow x$, $y_n\rightarrow y$ weakly but $(\langle x_n, y_n\rangle)_{n}$ is not convergent:

6 votes
2 answers
78 views

If $f$ is bounded and has bounded derivative on $\mathbb{R}$, then $xf(x)\in L^1\Rightarrow xf(x)\in L^\infty$?

1 vote
0 answers
5 views

What would be the fundamental period of this discrete-time signal?

1 vote
0 answers
18 views

How is the multidimensional Lagrangian-function partially derived here? Chain-Rule and?

0 votes
0 answers
9 views

How do you find the solutions to the vector field $W(x,y,z)?$

0 votes
0 answers
14 views

Is there a solution of this equation involving rational powers?

1 vote
0 answers
21 views

Eigenvectors spanning closed subspace in a Banach space

3 votes
1 answer
998 views

Fokker Planck and SDE

1 vote
1 answer
25 views

Tips to know what to condition on in probability: Win by Two

0 votes
0 answers
18 views

Distribution of 2A , 2B and 2C in three identical box..

0 votes
0 answers
45 views

Given three real numbers $c_1,c_2,c_3$, how to construct a monotonic sequence $\{a_n\}\to\infty$?

2 votes
1 answer
24 views

Sheaf of sections supported at a point is coherent?

-2 votes
0 answers
17 views

Need help translating a word problem

0 votes
0 answers
9 views

About Leray-Schauder fixed point theorem’s application in PDE

4 votes
1 answer
23 views

Answer verification regarding fundamental period.

0 votes
0 answers
19 views

Triangle inequality on nearest integer function

0 votes
0 answers
4 views

Equivalent estimators and transformation of joint density

0 votes
0 answers
8 views

Possible Tetration extension for a specific interval (part 2)

0 votes
0 answers
17 views

Is my proof (that the summit angles of a Saccheri quadrilateral are congruent) valid?

5 votes
1 answer
67 views

What makes Cousin's theorem remarkable?

6 votes
1 answer
212 views
+100

Limit of Exponential and its Integral

0 votes
1 answer
15 views

Problem with the minimum distribution of a set of iid random variables

1 vote
1 answer
30 views

Uniform distribution on the triangle $ ∆:=\left \{ (x, y) ∈ R^2|0 < x, y < 1, x + y < 1 \right \}$

0 votes
0 answers
23 views

Find the 'square' divisors of a given even number

0 votes
0 answers
8 views

How to infer that $\|T\| \leq \sqrt{B}$ from the fact that $\left\{f_k\right\}_{k=1}^{\infty}$ is a Bessel sequence ($T$ is the pre-frame operator)?

-1 votes
0 answers
11 views

how to use implicit function theorem on $F(x,y)=x-f(y)$

0 votes
1 answer
36 views

Use neighborhood signs to express e, pi, phi

0 votes
0 answers
17 views

Set of elements outside range space

0 votes
0 answers
23 views

Prove that if the sets $A, B, C$ are all measurable, then $m(A \cup B \cup C)=m(A)+m(B)+m(C)-m(A \cap B)-m(A \cap C)-m(B \cap C)+m(A \cap B \cap C)$

0 votes
0 answers
16 views

Proof of theorem involving incircles

0 votes
0 answers
11 views

References regards complex analysis on Banach spaces

2 votes
0 answers
31 views

Place rectangles minimizing unused space

0 votes
0 answers
9 views

Radius of curvature at a point on a Lorentzian manifold

0 votes
0 answers
14 views

Regarding Invariants

0 votes
0 answers
9 views

A step in real analysis lemma used in Moser Trudinger proof

2 votes
1 answer
11 views

How can I check that $\Bbb{E}(X_n1_{B_n})<\epsilon$ if $B_n=\{\Bbb{E}(X_n|F_n)\leq\epsilon\}$?

3 votes
1 answer
36 views

If $[G:H]=p$ is a prime. If there is an element $g\notin H$ satisfies $gH=Hg$, then $H$ is a normal subgroup of $G$

0 votes
0 answers
25 views

Prove $\int_{0}^{+\infty} \frac{\exp(-t)}{\sqrt{\pi t}} \exp (-\frac{x^2}{4t}) ~\mathrm{d} t = e^{-|x|}$

1 vote
1 answer
15 views

modular automorphism group for a faithful normal state restricted to a von Neumann subalgebra

0 votes
0 answers
15 views

Exercise 7, Section 5.3 of Hoffman’s Linear Algebra

1 vote
0 answers
9 views

The number of $C^0$ conjugacy classes of a $C^1$ flow in $\mathbb R$

2 votes
0 answers
19 views

Computing the global and Hochschild dimensions of a free product of direct products of fields.

6 votes
2 answers
38 views

Old Maid Card Game Probability Question

1 vote
0 answers
18 views

Example of a brick-infinite, tame, triangular algebra of global dimension$\geq3$

0 votes
0 answers
13 views

Left multiplying matrices that are invertible

0 votes
0 answers
20 views

Limit of two variables (apparently $+\infty$)

0 votes
1 answer
25 views

What is the name of the algorithm, or area of maths that divides a plane around a number of points.

1 vote
0 answers
27 views

Proof of the inequality $\sup_{x\in [a, b]} (f(x)) ^2 \le (b-a) \int_a ^b(f'(x)) ^2 dx$

6 votes
2 answers
173 views

Shortest path between two points via two disks

0 votes
0 answers
16 views

ellipsoid equation of intersection of a cone and a hyperplane

1 vote
0 answers
23 views

Minimum possible sum of the weights of the heaviest kid and the second heaviest kid

2 votes
0 answers
63 views

Propagators and PDEs

0 votes
0 answers
17 views

Can I solve this quadratic program "fast"?

3 votes
1 answer
32 views

Converting the double integral in polar coordinates to Cartesian coordinates

3 votes
2 answers
87 views

About the Set of $\mathbb{S}=\{ n | n = a^2+b^2, a, b \in \mathbb{Z}. \}$

3 votes
3 answers
2k views

Probability/Combinatorics Problem - Old Maid Cards

0 votes
2 answers
46 views

Real Analysis - Sequence Convergence

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