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4 votes
1 answer
61 views

Probability of points in same arc

0 votes
0 answers
2 views

Ball into bins with a twist in the domain

0 votes
1 answer
40 views

Can you use multinomial distribution to analyze games like Stellaris?

0 votes
0 answers
27 views

$g(x_n)=x_{n+1}$ a fixed point iteration. Given $g(p)=p, \lim_{n\to\infty}\frac{p-x_{n+1}}{p-x_n}=g'(p)$ find an upper bound for $p-x_n$

5 votes
0 answers
157 views
+300

Curvature operator of a Kähler manifold with constant holomorphic sectional curvature

0 votes
0 answers
3 views

Heuristics for centrality measures?

1 vote
0 answers
33 views

Are linear maps Borel?

0 votes
0 answers
6 views

Legendre polynomials: prove that $P'_{n+1}(x) - P'_{n-1}(x) = (2n+1)P_{n}(x)$ without generating function

0 votes
0 answers
6 views

Does a particle undergoing perfectly elastic collisions within a rectangle repeat its paths?

0 votes
0 answers
32 views

$\sum_{n=0}^{+\infty} \frac{x^n}{1+nx} \stackrel{x \to 1^-}{\sim} -\ln(1-x)$

1 vote
1 answer
31 views

Find the spectrum of $(Af)(s) = \int _0 ^1 K(s,t)f(t)dt $ where $K(s,t)=\max\{s,t\}$

1 vote
1 answer
29 views

Informal definition of groups in Nathan Carter's "Visual Group Theory"

0 votes
0 answers
32 views

Probability of nobody envying me, i.e. probability of one of the seven deadly sins

0 votes
0 answers
22 views

How is a circle constructed from 3 segments that don't necessarily form a triangle?

1 vote
0 answers
18 views

Silverman's book, the arithmetic of elliptic curves, p.399, $E(K)/\hat{\phi}(E'(K))\cong \Bbb{Z}/2\Bbb{Z}$

0 votes
0 answers
11 views

Full Rank of Hadamard product matrix

0 votes
0 answers
8 views

Mathematical Induction involving binomial sum

1 vote
0 answers
23 views

Closed form of $\sum_{n=0}^{\infty}\frac{1}{(n!)^3}$

0 votes
0 answers
14 views

For the left action $G\times S \to S$, $\psi: G \to A(S)$ is a homomorphism, where $A(S)$ is group of permutations of $S$. Is $\psi$ onto necessarily?

-1 votes
1 answer
14 views

$D$ is bounded by $y=x^3, x=-1, y=1$, find $\iint_D\left[x^2+\sin(xy)\right]d\sigma$

7 votes
1 answer
175 views
+300

Prove that $BE^{\alpha}$ is a Banach Space

1 vote
1 answer
243 views

Geodesic question

2 votes
3 answers
1k views

Prove that $\{S(t)\}_{t \ge 0}$ is a contration semigroup on $L^2(\mathbb{R}^n)$

0 votes
0 answers
8 views

The solvability of a certain quadratic diophantine equation

2 votes
1 answer
2k views

Indicator function property

0 votes
0 answers
18 views

How to estimate the expression about triangle and orthocenter.

2 votes
2 answers
48 views

External ve Internal Properties for ZFC Models

0 votes
1 answer
75 views
+150

Can $S/\mathfrak{q}^{[p]}$ have embedded primes?

0 votes
0 answers
7 views

Maximum principle for $\partial_t u = e^{-u}\Delta u$ on 2-manifolds

0 votes
0 answers
22 views

Rational solutions of $x^2+y^2+z^2+3(x+y+z)+5=0$

1 vote
1 answer
14 views

How to derive this Lie group multiplication formula?

0 votes
1 answer
35 views

A locally connected topological space has open connected components

0 votes
0 answers
22 views
+50

Experimental Design: Selecting value of $n$ given desired width of credible interval

0 votes
0 answers
8 views

How is a Sturm sequence applied to the eigenvalue problem of a matrix.

1 vote
1 answer
47 views

If a = b mod s and a = b mod t, why must s and t be relatively prime for a = b mod st?

2 votes
1 answer
88 views

Let $x_0 = 3;\ x_{n+1}=3x_n\ $ if $\ \frac{x_n}{2}<1;\ x_{n+1}=\frac{x_n}{2}\ $ if $\ \frac{x_n}{2}>1.\ $ Is $\ \liminf_{n\to\infty} x_n=1?$

3 votes
0 answers
36 views
+50

Characterization of self-conjugate spin$^c$ structures

0 votes
0 answers
3 views

Is Cesàro limit of a stochastic matrix always Block diagonalized with Block being either diagonalized or rank 1 (up to some permutation)?

0 votes
1 answer
14 views

Consistency Strength of OCA?

0 votes
0 answers
9 views

Frobenius norm and spectral decomposition

-1 votes
1 answer
36 views

If $\mathbf{A}^{m\times n}$, $m>n$, is full rank, then $\mathbf{A}^T\mathbf{A}$ is positive definite

1 vote
0 answers
26 views

Probability of Seeing "X" % of Balls in "Y" Turns?

1 vote
0 answers
49 views

$A^n$ can be written as a linear combination of $I,A, \dots, A^{n-1}$

0 votes
1 answer
12 views

Find $K_r$-subdivisions in random graphs

1 vote
0 answers
8 views

The existence of $f$ $k$-lipschitz in the subset $Y\subset \mathbb{R}$ implies the existence of a real $k$-lipschitz function $g$ such that $g|_Y=f$.

0 votes
0 answers
5 views

Equivalent ways to obtain the reduced closed subscheme associated to the whole space

0 votes
0 answers
8 views

Holder continuous function whose inverse is also holder continuous?

1 vote
0 answers
44 views

classical schemes as derived schemes are set valued still

0 votes
1 answer
28 views

Convex combinations of set of points

0 votes
0 answers
9 views

How do we describe the 'isomorphism subspace' of the mapping space $Map_{C}(x,y)$ of an infinite category C?

1 vote
0 answers
8 views

Calculate the normal cone of a set of increasing functions

5 votes
1 answer
5k views

Finding the mode of the negative binomial distribution

1 vote
0 answers
6 views

Proving that two points are isogonal and then proving Pascal's Theorem

2 votes
1 answer
32 views

Is every Fermat number that is not equal to $3$ a Connell Number?

0 votes
1 answer
40 views

Helly's theorem on infinitely many sets

3 votes
0 answers
33 views

A trace inequality of the product of two matrices

0 votes
0 answers
9 views

Variation of the dual group and discrete L-parameter

1 vote
0 answers
21 views

Radon transform over a rhombus

5 votes
2 answers
103 views

Statistical Model and its Topology

1 vote
1 answer
39 views

Find Cov$(Z_n^i,Z_n^j)$ where $Z_n^i=\min\{N_i,p\}$

0 votes
1 answer
44 views

Does $\forall x, \exists x$ also needs to be quantified over some sets in zfc subset axiom?

1 vote
0 answers
13 views

Transversality condition and line bundles

0 votes
0 answers
17 views

when do we say a metric space is quasi-invariant under a function?

0 votes
0 answers
21 views

Does rectifiability imply continuity?

0 votes
0 answers
9 views

In which circumstances is the integral of a quasiconvex function again quasiconvex?

0 votes
1 answer
18 views

Why is a functor $\mathcal{V}_{0}(I,-): \mathcal{V}_{0} \to \textbf{Set}$ is the "underlying-set" functor?

6 votes
0 answers
47 views

Does the functional square root of the sine adhere to a "Sum = Integral" identity?

0 votes
1 answer
24 views

Relation between discontinuity and imaginary part of a function

0 votes
0 answers
8 views

Geometric Multiplicity of the Normal Cone.

2 votes
1 answer
1k views

Generalize the idea of $A^2 = I_2$ to find a $5 \times 5$ matrix such that $M^2 = 0$ and $C$ is a nonzero $2 \times 3$ matrix

2 votes
0 answers
40 views

Equality of an integral of a measurable function

0 votes
0 answers
15 views

Correspondence between finite groups and Latin squares satisfying the quadrangle criterion

0 votes
2 answers
65 views

Rudin's RCA Theorem 7.21

0 votes
0 answers
15 views

Trying to check whether equation holds or not.

1 vote
0 answers
40 views

Partial Fraction Decomposition: Heaviside's Cover-up methods for repeated roots

0 votes
0 answers
6 views

jacobian matrix to convert range, azimuth and velocity to x,y,vx,vy

0 votes
2 answers
66 views

Three sides of a quadrilateral are congruent, and their two included angles are right. Must the quadrilateral be a square?

1 vote
1 answer
39 views

Newton interpolation with no error?

2 votes
0 answers
46 views

Principal value integral of $f(x)/x^2$

39 votes
9 answers
15k views

Definite integrals solvable using the Feynman Trick

0 votes
1 answer
25 views

Is there a Noetherian integral domain that is regular in codimension 1 but not integrally closed?

1 vote
0 answers
11 views

Left Hilbert algebra: tracial case (Stratila-Zsido: Exercise 10.5)

1 vote
0 answers
28 views

Dirac operator on a manifold with boundary

1 vote
0 answers
16 views

The part of duality arguement I cannot understand. (For Banach space valued functions.)

6 votes
1 answer
108 views
+500

Finding $\min_{Q^TQ = I}(n Tr((Q^T \Lambda Q)^2) - Tr(Q^T \Lambda Q)^2)$

0 votes
1 answer
9 views

How big can the girth be on this graph class?

0 votes
0 answers
13 views

Torsion subgroup of abelian variety

0 votes
0 answers
9 views

Inverse of a circulant matrix via DFT

0 votes
0 answers
15 views

Does $H^{1/2}$-norm-convergence imply $L^{\infty}$-norm-convergence on $H^{1/2} \cap L^{\infty} (\mathbb{S}^1, \mathbb{T})$?

0 votes
0 answers
8 views

Actions of relative Weyl groups on Levis in $GL_n$

1 vote
0 answers
13 views

Eigenvalues of the product of a stochastic matrix and a doubly stochastic matrix

1 vote
1 answer
290 views

A certain conjectured criterion for restricted partitions

1 vote
2 answers
25 views

Finding period from trig graph

1 vote
1 answer
36 views

Conjugating of root subspaces by exponents

0 votes
0 answers
15 views

Meaning of asymptotic in the context of stochastic process

0 votes
1 answer
53 views
+100

Diagonal metric with induced metric being diagonal as well

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