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Interesting 29 Bountied Hot Week Month
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compute CNF of $(\omega k )^n$

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Monte_carlo
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Try to prove $e\pi$ is irrational

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Math Admiral
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1 vote
0 answers
9 views

What [is the minimal] differential equation is satisfied by $y = \sum_{n=0}^\infty {x^n}(n!)^{-k}$?

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Mason
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Minimal polynomial of an algebraic integer

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Bobby
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2 votes
0 answers
29 views

Probability (or asymptotics) that $G_{n, p}$ is a forest?

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Misha Lavrov
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1 vote
0 answers
57 views
+50

Open set condition and Hausdorff dimension

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Mths
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3 votes
1 answer
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Prob. 6, Sec. 27, in Munkres' TOPOLOGY, 2nd ed: The Cantor's set is totally disconnected, compact, and uncountable

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CommunityBot
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1 vote
2 answers
73 views

How to properly apply combinations in probability

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Henry
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1 answer
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Conditional expectation of a mixture distribution with measure zero event

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Ward Abdullah
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0 answers
13 views

Recurrence relation between $n^{-1}$ and $(n+1)^{-1}$ in GF(p)

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Iñaki Viggers
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4 votes
4 answers
8k views

Natural Logarithm expressed as Limit

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Hal Hollis
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1 vote
2 answers
41 views

Does Bolzano-Weierstrass Theorem hold in n-dimensional complex space(C^n)?

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Joe
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Question about an application of Hopf-Rinow Theorem

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Superdivinidad
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16 votes
2 answers
375 views

Two battalions of size $N$ shoot each other randomly, how many soldiers are left standing?

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mjqxxxx
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Constructing the Hecke Theta Function for a Number Field

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Laan Morse
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Justifying the interchange of limit and integral in a sequence involving a diffeomorphism with non-uniform determinant bounds

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Lsp
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4 votes
3 answers
458 views

$u\in H^1(\mathbb{R}^N)\cap C^1 \Rightarrow u$ vanishes at infinity?

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Kadmos
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Show that $\sqrt{a}+\sqrt{2\sqrt{a}}+\ldots \leq \frac{3}{2}\sqrt{a}$?

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soggycornflakes
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1 answer
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Continuity of an operator constructed from a continuous function

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Pantelis Tassopoulos
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1 vote
1 answer
38 views

Is every geodesic lamination on a hyperbolic surface orientable?

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Lee Mosher
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0 answers
15 views

Existence of a function in L1(G) whose Fourier transform never vanish

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user1139051
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0 answers
21 views

Intuition on when and why algebraic manipulations work with operator equations

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kheer257
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2 votes
1 answer
95 views

Construction of a commuting matrix

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user1551
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2 answers
1k views

Solving min-max equations

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-1 votes
0 answers
19 views

Riemannian metric on $P^n(\mathbb R)$ such that the natural projection $\pi : S^n \to P^n(\mathbb R)$ is a local isometry.

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Lee Mosher
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1 answer
26 views

Relations between ordinary integrals and extended integrals in Munkres' “Analysis on Manifolds”

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Andrew
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0 answers
25 views

Choiceless cardinal exponentiation

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Raczel Chowinski
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0 answers
66 views

Kirby Calculus on $E(n)\sharp \mathbb{C}P^2$

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MUT
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1 answer
36 views

How to interpret an endomorphism a tangent vector valued antilinear 1-form?

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27 views

Decompose remainder in Taylors theorem into smooth functions

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Backfisch
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1 answer
127 views

Seeking Guidance on Deriving the Passage Time Distribution for Geometric Brownian Motion

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Pedro♦
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4 votes
1 answer
85 views

Evaluate $\sum_{n=1}^{\infty} \left( \left(2n-1\right) \left(\frac{1}{n^2} + \frac{1}{(n+1)^2} + \ldots \right)^2 - \frac{2}{n} \right)$

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Martin.s
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1 answer
38 views

Show measure of set converging to zero

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Pantelis Tassopoulos
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0 answers
13 views

Calculation of certain morphism of affine schemes

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tensor
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1 vote
1 answer
24 views

Is every finitely generated module over a commutative ring Dedekind-finite?

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rschwieb
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1 answer
27 views

If $f_n$ converges locally uniformly to $f$ on open unit disc, does the difference quotient converge locally uniformly?

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RobPratt
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1 vote
0 answers
21 views

Finding a homotopy equivalence of a simply connected space to a wedge of spheres given half of a homotopy equivalence.

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Coffeeman
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1 answer
4k views

The advantage of B-spline compared to Bézier if the number of control points is very small

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CommunityBot
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Reference request: classification of non-trivial valuation rings of $K/k$ where $K$ is the function field of a smooth projective curve over $k$

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Z Wu
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2 answers
523 views

Evaluation of Trigonometric Integration $\int \sin x\sqrt{\sin 2x}dx$.

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Integreek
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1 answer
34 views

Equivalence of two exact sequences for sheaves of modules

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Nick Sweeney
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0 answers
41 views

When can you switch the summation symbols here?

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Kamal Saleh
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27 votes
2 answers
1k views
+500

About the inequality $\sum \frac{x_j}{1-x_j} \sum \frac{y_j}{1-y_j} \ge \sum \frac{x_j}{1-y_j} \sum \frac{y_j}{1-x_j}$

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Christophe Boilley
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-2 votes
1 answer
39 views

Structure preserving isomorphism between groups

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Prown
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2 votes
1 answer
436 views

Confusion regarding definition of gauge transformation

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Z. Liu
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4 votes
1 answer
67 views

Minimal and maximal distance to the intersection of an ellipsoid with a plane

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Rodrigo de Azevedo
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9 votes
1 answer
157 views

A floor function appeared after integration while solving Laplace’s equation. What happened?

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Integreek
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10 votes
0 answers
928 views

Closed form solution of $\int_0^{\omega_t}\int_{\omega_t}^f\sin^2(\frac{\omega_{12}}2)\sin^2(\frac{\omega_{23}}2)d\omega_{23}d\omega_{12}$

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Integreek
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Finding the maximum of y in $\frac{x^a+1}{b^x}+\frac{x^b+2}{c^x}+\frac{x^c+3}{a^x}=y$ within a quadrant

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d30
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2 answers
2k views

If $X,Y$ are two non-negative integer RVs, show that $E[XY] = \sum[P(X>=n),(Y>=m)]$

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CommunityBot
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2 votes
0 answers
61 views

What can we conclude about convergent $p$-subseries with $p\leq 1$?

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Zim
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1 vote
1 answer
167 views

Maximum radius of intersection of a plane and an ellipsoid

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Rodrigo de Azevedo
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2 answers
22 views

How to constrain a sum involving integer partition?

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RobPratt
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2 votes
0 answers
60 views

1D diffusion exiting an interval: Why does the exit time scale with the square of interval length?

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FOE
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0 answers
9 views

Spreading out and recombining full measure sets of Laurent series

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RobPratt
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5 votes
2 answers
349 views

In using Dirac’s approach to bra vectors, do we ever know what our bra vectors are?

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user151522
  • 567
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1 answer
16 views

Using P.S. condition to find another critical points

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kabenyuk
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2 votes
1 answer
203 views
+50

How do you find the range of a multivariable function whose domain is the integers?

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RobPratt
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1 vote
0 answers
27 views

Bounds for derivatives of smooth function

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HelloEveryone
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1 answer
42 views

Bishop Pattern Recognition and Machine Learning, Exercise 2.14

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Hyperplane
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0 answers
54 views

Is it trivially true that $u\{0,1,\dots,f-1\}\equiv \{0,1,\dots,f-1\} \pmod{n+1}$ implies $u=1$?

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MeBadMaths
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11 views

Can an arbitrary partition of the set of infinite binary words be seperated in the supremum by a function on the finite words?

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Thomas Andrews
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0 answers
51 views

Why is this construction so redundant (Theorem 3.2 - Thomas Jech's set theory)

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MathInquirer
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0 answers
21 views

Finding the slant height of a triangular pyramid

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user386598
  • 253
1 vote
1 answer
47 views

Number of ways to fill a static sized list of sets

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Mohammad Zakzok
  • 11
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0 answers
10 views

How do I solve a system of two interdependent variables (e.g. attack and defense ratings) using iterative updates?

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Ifeanyi Obinelo
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0 answers
11 views

Quotient of direct sum of modules is direct sum of quotients? Quotient of free module is free over quotient ring?

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dino
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0 answers
24 views

Canonical Divisor of $y^7=x^2(x-1)$

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Anon
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1 answer
15 views

Is the product of the "volume" of the integer partition of composite number greater than primer one?

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Thehanna
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2 votes
1 answer
41 views

Is the domain of a locally convex $C_0$ function always convex?

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Annemarie Kästner
  • 31
0 votes
0 answers
9 views

Understanding Markovian Coupling: Ensuring Chains Merge After First Meeting Time

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Maurício Almeida
  • 49
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0 answers
14 views

Wave equation with Dirichlet boundary conditions and constant derivative on part of the boundary

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Reginaldo Demarque da Rocha
  • 336
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0 answers
27 views

Torsion in integral homology and finite-index subgroups

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Ilikanik
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0 votes
1 answer
36 views

Showing that the intrinsic torsion of an almost symplectic structure is $d\omega$

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Andreas Cap
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0 answers
12 views

Analog to discriminant for ratio of polynomials and fractional powers of polynomials

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Gabriel Myers
  • 13
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0 answers
27 views

f(x) bijections on modulo integer groups

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dandadan
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1 vote
0 answers
33 views

On the reducibility of a characteristic polynomial

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Gonçalo
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0 answers
7 views

Applying ergodicity concept on random binary signal

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tac
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3 votes
0 answers
41 views

Under what oscillation conditions on $f(t)$ does its Laplace transform avoid singularities on the abscissa of convergence?

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proofromthebook
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4 views

Convergence of discretized optimal stopping problems with a discontinuity at maturity

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user1626765
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0 votes
0 answers
6 views

$(X_t, Y_t, Z_t)$ be jointly i.i.d., will $(X_t, Y_t)$ be jointly i.i.d.?

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toki
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14 votes
4 answers
1k views

Compute $\int_0^{\pi} \frac{\cos(nx)\cos(x) - \cos(nt)\cos(t)}{\cos(x) -\cos(t)}dt$

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Abd-Elouahab Moustapha
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1 vote
0 answers
18 views

A limit about a disk divided into strips and bars

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Dan
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1 vote
0 answers
27 views

Real-symmetric Blaschke-Potapov products

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SirNabla
  • 11
1 vote
0 answers
6 views

How to estimate the Besov norm of $e^{i\xi u}-1,\xi>0$ when $u$ belongs to Besov space?

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Vegetable chicken
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0 answers
16 views

How to decide bounds in spherical coordinates especially for $\Phi$

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Random Math Enthusiast
  • 2,862
0 votes
1 answer
159 views

Continuity of P-laplacian

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daw
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5 votes
0 answers
291 views
+50

Extending the special function $G(n)=\prod_{k=1}^{n}k^{k^k}$ to any number

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Thinh Dinh
  • 5,736
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0 answers
6 views

Two-block-diagonalization of a positive definite matrix through orthosymplectic matrices

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Dex975
  • 1
0 votes
2 answers
176 views

Given a vector space of Dirac kets, could you give a way that the corresponding bras may be set up?

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user151522
  • 567
0 votes
1 answer
117 views

Non-Abelian group with $(xy)^2=(yx)^2$ for all $x,y$ has a non-trivial solution to $a^2=1$

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Shaun♦
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1 vote
1 answer
70 views

Finding the number of ways to pair up n objects, some of which are identical

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Santhosh Kumaran
  • 83
0 votes
0 answers
11 views

Truncation Error at Boundary Nodes

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user1624019
  • 1
2 votes
1 answer
92 views

Showing $\sum_{k=0}^n\frac{(-1)^k}{k+1}\binom{n}{k}^2=\frac{(-1)^{n/2}\,n!}{(n+1) ((n/2)!)^2} $ for even $n$

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Thomas Andrews
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0 answers
26 views

Proving completeness for a statistic

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Starlight
  • 2,674
284 votes
3 answers
16k views

How does one prove the determinant inequality $\det\left(6(A^3+B^3+C^3)+I_{n}\right)\ge 5^n\det(A^2+B^2+C^2)$?

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Rodrigo de Azevedo
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