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Interesting 40 Bountied Hot Week Month
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Qualified Sources on Mathematical Series

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Carlo
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Does the sign of a number have a precedence in order of operations?

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Randall Blake
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1 answer
13 views

Arrange $1,1,2,2,\ldots,n,n$ on a line such that there are $k$ numbers between two $k$s

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aaa acb
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1 answer
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Orthogonal Projection onto Half Space of Matrices

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Royi
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2 votes
1 answer
191 views

Amann/Escher, Analysis I, Exercise I.10.16: nest of intervals

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0 answers
5 views

If a known ellipse and partially known circle are tangent to each other, how can we find the equation of the partially known circle?

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Alex Hyun
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1 vote
2 answers
17 views

Is a Subsequence of Stopping Times a Stopping Time (under specific conditions of this question)?

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John Dawkins
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4 views

The definition exponential map of Lie algebra

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neconoco
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Question from calculus.

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1 vote
1 answer
19 views

Zariski topology on $\text{Max}(C(X, \mathbb R))$

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Zsombor Kiss
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2 votes
2 answers
55 views

Find the side lengths of a right triangle in terms of the distances of a point from its vertices,

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RobinSparrow
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3 votes
3 answers
48 views

Is it possible that the roots of a biquadratic equation will be in A.P. , G.P. , H.P.?

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Prem
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1 answer
63 views

Olympiad type geometry problem

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RobinSparrow
  • 2,473
6 votes
3 answers
2k views

Separate continuity implies measurability

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Kadmos
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8 views

Find the general solution of the ordinary differential equation (ODE)

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Prof. Lalit Kumar Pachori
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1 vote
0 answers
12 views

All geodesics on the usual Euclidean space $\mathbb{R}^2$ are lines

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algebroo
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1 vote
0 answers
14 views

Prove that of all triangles having same base and equal areas, the isosceles triangle has the least perimeter.

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0 answers
10 views

The restriction of a blow up to a subscheme is the the blow up of this subscheme at the intersection of it and the center.

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9 views

Self-Adjoint Operators on an Inner Product Space - Hoffmann and Kunze

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Aravind Gundakaram
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0 answers
13 views

How to prove the Jacobi formula?

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Qian-Sheng
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-2 votes
1 answer
37 views

Converting 3D to 2D in Desmos

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Tina
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28 views

What is $\mathcal{P} (\Omega)$?

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Bml
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1 vote
1 answer
19 views

Constant stochastic process on the rationals

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John Dawkins
  • 27.8k
0 votes
1 answer
36 views

projected gradient descent: projection to constraint $l \leq Xt \leq u$

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Royi
  • 9,087
-2 votes
0 answers
13 views

The geometric mean of the product of N iid variables

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Mani
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1 vote
0 answers
22 views

Trouble using counting to invert relationship between two sets of tensors

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schoop
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1 vote
0 answers
8 views

Integration formula on locally compact groups

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user6453
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2 answers
44 views

Prove Cauchy-Schwarz inequality in the complex case without using definiteness

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Anne Bauval
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1 vote
1 answer
83 views

Bound on the Wasserstein distance

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Dmarks
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8 votes
2 answers
183 views

Proof of existence of algebraic closure with Zorn's lemma

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Martin Brandenburg
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3 votes
2 answers
52 views

complement of smooth submanifold is simply-connected

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Trishan Mondal
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6 votes
2 answers
243 views

How do I translate "is not sufficient" into symbolic logic?

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ryang
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1 vote
0 answers
41 views

Conjecture: Every Non-Zero Integer as the Difference of a Semiprime and a Prime

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Akira Sukigi
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1 answer
1k views

Backtracking Line Search - Graphical Interpretation

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Total Number of Sonnet Types (Deceptively Complex)

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Daniel Kemper
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1 vote
3 answers
85 views

What is the flaw in my approach to calculating the likelihood of selecting 13 cards where one card from each suit is included in the selected set?

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true blue anil
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1 vote
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31 views

Elstrodt: Maß- und Integrationstheorie, exercise II.1.8

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14 views

Convergence almost surely and limits as events in sigma algebras

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LostInProbabilities
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6 votes
1 answer
465 views

Derivation of dice-sides polynomial

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xnor
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2 votes
1 answer
22 views

What is the maximum number of edges in a graph with n vertices and this restriction on its subgraphs?

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Misha Lavrov
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1 answer
37 views

How to obtain variance in a markov chain?

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Misha Lavrov
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How to prove the bases of algebra $C_{24m}$?

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sima ouyang
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1 answer
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There isn't $(a_n) \in (-\infty, \infty]^\mathbb{N}$ s.t. $ \forall n\geq 1, \Delta a_n >0$ and $(a_1,\infty]= \bigcup_{n=1}^{\infty}(a_n,a_{n+1}]$

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Alex Ahr
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20 views

Why can't I get the multidimensional Ito and Stratonovich to agree?

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Tadgh Kelly
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1 answer
41 views

Does $\int_{0}^{+\infty} \frac{xt}{1+x^2+t^2}e^{-x^2t^2}\cos x^2t^2 dt $converge uniformly in $ x\in (0,+\infty)$

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Ryszard Szwarc
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1 answer
89 views

In theory, could you use Induction on any countable set?

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Bram28
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1 answer
39 views

Find functions $u_n\to u$ such that $\int u_n=20$ and $\int u=25$

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Anne Bauval
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0 answers
63 views

$A$ and $B$ share the same eigenvalues, conclude $B^3=0$

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Grigor Hakobyan
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1 answer
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Calculating the Dihedral Angle of a Lateral Face and Base

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Polynomial block with Turing machine

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Must Hardy-Littlewood constants of unrelated discriminants be unequal?

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Rosie F
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3 votes
2 answers
424 views

Two points with zero velocity in some inertial frame move in a straight line

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22 views

Is there a way to simplify the following expression without involving the imaginary parts, which we know should vanish?

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Siegfriedenberghofen
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0 answers
19 views

Advice and supplementary sources (videos, books) to tackle rudin's real and complex analysis exercises?

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walternate
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1 vote
1 answer
60 views

Recommended books/resources for second-order arithmetic

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Tankut Beygu
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4 votes
1 answer
120 views

A word problem I can't solve.

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M.Riyan
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0 votes
0 answers
29 views

Real function resembling a sequence of numbers given by $(f(n)+P(n))mod{(Q(n))}$

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Aurelian Florea
  • 115
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0 answers
8 views

How to find Fourier coefficient $a_0$ value for a sign function with output 1110110?

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PabloSaint
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3 votes
2 answers
225 views

Existence of Platonic and Archimedean solids

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Oscar Lanzi
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1 vote
1 answer
83 views

Do smooth morphisms imply regular schemes?

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Functor
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6 views

Specifying angle bisectors and relative position of a point.

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Aryan Kr.
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1 answer
27 views

Behaviour of modified Bessel function of first kind of order $-\frac12$, that is $I_{-\frac12}(x)$ for real $x\rightarrow0$

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user3236841
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0 answers
23 views

Understanding some concepts regarding metric spaces.

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Danilo Jonić
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1 answer
1k views

Counting Young tableaux

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CommunityBot
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5 votes
0 answers
37 views

Show that $\int_0^{\pi/3}\arccos^2(2\sin^2 x-\cos x)\mathrm dx=\frac{19\pi^3}{135}$

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Dan
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1 vote
0 answers
24 views

Vanishing Cech cohomology implies vanishing sheaf cohomology

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Ezio Greggio
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4 votes
1 answer
111 views

Criteria for weak convergence implies norm convergence on Banach spaces

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Tina
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0 answers
19 views

Galilei transformation

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Pan Miroslav
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1 answer
37 views

Suppose $f \circ g$ is smooth, is it true that $f\vert_{g(U)}$ is smooth?

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Anne Bauval
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1 vote
2 answers
110 views

How do I find $|A|$ in this context?

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ryang
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0 answers
56 views

Poker related. Probabilities of hitting Bad Beat Jackpot in 4card PLO and calculation of expected value based on that.

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Bml
  • 271
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0 answers
18 views

Given the probability of each person using a PC and for how long, how many PCs does a company need?

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Tripola
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7 votes
0 answers
233 views
+50

Double integral of $\tan^3(x)$

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Mathaholic
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0 answers
14 views

question about functional delta method

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toki
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3 votes
1 answer
2k views

Prove that $n$ is a pseudoprime to the base $b$ if and only if $b^d\equiv1 \pmod n$...

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CommunityBot
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1 vote
1 answer
32 views

Fiber length and Zariski's Main Theorem preserving flatness

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Sasha
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3 votes
0 answers
56 views

Analyzing the behavior of derivatives for invertible functions over finite fields

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Kan't
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0 answers
13 views

Beyond the $agm(1,x)$ ; $f(a,b) = f((a+b)/2,((a^{1/3} + b^{1/3})/2)^3) $

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mick
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6 votes
1 answer
1k views

How to represent the member of generated sigma algebra in terms of unions and complements?

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CommunityBot
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0 answers
20 views

For a densely defined operator $A:X\to Y$ with $X$ and $Y$ different Hilbert spaces, is $A$ closable still equivalent to densely defined adjoint?

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valcofadden
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1 answer
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If $\mu\perp\nu$, is it true that $\mu |_\mathcal{B}\perp\nu |_\mathcal{B}$ for every $\mathcal{B}$ sub-$\sigma$-algebra?

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Lorago
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29 views

Prove that there are no more than 10 consecutive primes in an arithmetic progression with common difference smaller than 2000

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injo
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2 votes
0 answers
50 views

Equivalence of convergence of two sequences $\{x_n\}$ and $\{y_n\}$ with $y_{n+1}=\sqrt{x_n+y_n}$.

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Riemann
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0 answers
121 views

Why does Brownian motion on a Riemannian manifold seem to no longer satisfy the constraint in its Ito formulation?

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Tadgh Kelly
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5 votes
1 answer
62 views

Inconsistency in answers while solving a 2nd order differential equation using operator method

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Lutz Lehmann
  • 129k
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0 answers
18 views

Optimization problem involving the probabilities of two events

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Vinaykarthik V
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6 votes
0 answers
75 views

In the Jungle of Conductors in Class Field Theory

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user267839
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0 answers
10 views

In the book "Zero to Monero", what does Square Brackers around a parameter passed to a Hash function denote?

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user93353
  • 508
1 vote
2 answers
472 views

coin toss and conditional probability

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14 views

Is there a succinct way of describing a homogeneous relation that is transitive with the exception of reflexive pairs?

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Alex Duchnowski
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4 votes
0 answers
166 views

Hard combinatorics related to partition

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Helixglich
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0 answers
22 views

Prove the a set C is the field by showing the finite union of element in C is also in C

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Guangxun Zhang
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0 answers
22 views

If $Z_t \overset{p}{\to} \zeta<\alpha$ and $Z_t<\alpha$ at time $t=T$, will $Z_t$ always remain under $\alpha$ with probability bounded away from 0?

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cluelessmathematician
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1 vote
1 answer
80 views

Is $\text{DTIME}(2^𝑛)\neq \text{PSPACE}?$

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David
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2 votes
0 answers
38 views

Maximizing a polynomial involving factorials

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Rex
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19 views

finding velocity field in stationary from from earth velocity field

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