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Interesting 47 Bountied Hot Week Month
0 votes
0 answers
3 views

Axially symmetric solution of a PDE on $S^2$

user823011
  • 1,185
0 votes
0 answers
19 views

Lengths to be found in a certain figure

Arthur
  • 190k
1 vote
0 answers
18 views

Coefficients of polynomial with at least $r$ non-zero roots.

marco19
  • 41
0 votes
0 answers
4 views

Questions arising from the Vessel functional integral representation

양유성
  • 1
0 votes
0 answers
12 views

What properties do the matrix $A^HA$ have?

ecook
  • 455
2 votes
0 answers
19 views

Integral $\int_{0}^{1} \frac{K(x)+K\left ( \sqrt{1-x^2} \right ) } {\left ( 1+x^2 \right )\sqrt{1-x^2} }\text{d}x $ and many integrals contain $K$.

Setness Ramesory
  • 2,020
0 votes
0 answers
21 views

Find a minimum of expression

xlpaul
  • 1
4 votes
2 answers
48 views

Probability theory problem - the order of drawing tickets doesn't matter

drhab
  • 144k
0 votes
0 answers
7 views

Rotate 3D points line to a same direction

Yuji
  • 1
0 votes
0 answers
5 views

References requested for the Mellin transform and its inverse for Borel probability measures

Jiyuan Zhang
  • 470
0 votes
0 answers
7 views

Closed form for infinite sum over Hermite polynomial $H_{2n}$

Jean-Claude Arbaut
  • 22.4k
4 votes
1 answer
61 views

Every ordinal is the derived length of a group

Sean Eberhard
  • 7,441
0 votes
0 answers
7 views

$(n_k)_{k=1}\cup (m_k)_{k=1}=\mathbb{N}$ so $\lim_{n \to \infty}a_n=L\Leftrightarrow \lim_{k \to \infty}a_{n_k}=L \cap \lim_{k \to \infty}a_{m_k}=L$

X0-user-0X
  • 705
0 votes
1 answer
12 views

Volume forms on Submanifolds

Pedro
  • 11
0 votes
0 answers
4 views

If a monothetic group is locally compact, then it is either discrete or compact

esoteric-elliptic
  • 11.1k
0 votes
0 answers
5 views

Correction factor In permutation and combination

πααρτθ Σαρθι
  • 1
0 votes
0 answers
36 views

A question on Fourier coefficients

Nobody
  • 73
0 votes
0 answers
5 views

Homogenization of second order linear PDE with a generation term

Need Help me
  • 1
0 votes
0 answers
10 views

Cyclic galois extension of $ K(x^{t} $ [closed]

Sky
  • 113
2 votes
0 answers
36 views
+150

Understanding the proof that the conditional distribution of a Gaussian random variable is linear in the conditioning Gaussian

nomadicmathematician
  • 5,487
9 votes
3 answers
3k views

What are the finite subgroups of $SU_2(C)$?

Ian Gershon Teixeira
  • 5,034
1 vote
1 answer
26 views

Turning a tensor product from a $\mathbb Z$ module (abelian group) to an $R$ module, $R$ is not necessarily $\mathbb Z$.

Ethan Martin
  • 152
0 votes
0 answers
8 views

De Rham cohomology of $\mathbb{CP}^n$ by Mayer-Vietoris sequences?

Pedro
  • 11
1 vote
1 answer
34 views

What is the operation that happens between a tensor product and a vector under matrix multiplication?

Ben H
  • 158
0 votes
0 answers
12 views

Reference Request for Complex Analysis

user587423
  • 23
0 votes
0 answers
12 views

Is this a valid "physicists" expression of Stokes' generalized theorem?

KvanteKaffe
  • 1
1 vote
0 answers
7 views

Linearizing ODE in its fixed points

user193299
  • 11
0 votes
0 answers
2 views

Are these Denavit-Hartenberg parameters wrong?

Abhishek A Udupa
  • 1,104
0 votes
1 answer
9 views

Show that the probability that (U,V) belongs to D equals the probability that (X,Y) belongs to D' where D' is a domain related to D

geetha290krm
  • 13.8k
0 votes
2 answers
27 views

Operator reversibility

Ryszard Szwarc
  • 12k
0 votes
0 answers
11 views

Rayleigh Distribution Confidence interval

Alberto Villalba
  • 1
-1 votes
0 answers
10 views

Numer of ways to write a subet as union of its subsets

Arthur
  • 190k
2 votes
1 answer
56 views
+100

Bounding Baker-Campbell-Hausdorff error with commutator of exponentials

YCor
  • 17.1k
0 votes
1 answer
20 views

How do you solve a discrete logarithm $𝑎^𝑥≡𝑏\pmod n$ when $\gcd(𝑎,𝑛)≠1$?

Anne Bauval
  • 8,556
0 votes
0 answers
3 views

Conductor of $GL(3)\times GL(2)$ L-functions in the level aspect

user643767
  • 31
0 votes
0 answers
4 views

Curvature lines are coordinate curves if and only if Weingarten matrix is diagonal

fgad
  • 1
0 votes
1 answer
10 views

Expected value of given random variables

user469053
  • 703
1 vote
1 answer
28 views

How many ways to a form a team of $11$ members?

N. F. Taussig
  • 69.9k
2 votes
1 answer
43 views

show that $X \leq \log A +B\log X \leq \log A +B\log B$

Invisible
  • 4,209
-3 votes
0 answers
13 views

is this function Lipschitz continuous

ANAS.C
  • 95
0 votes
0 answers
6 views

Fisher information of multinomial model

Analysis
  • 2,063
0 votes
0 answers
32 views

Suppose $X$, $Y$ are i.i.d and $\dfrac{X+Y} {2^{1/\alpha} } \stackrel{\text{d}}{=} X$

Noname
  • 1
0 votes
0 answers
12 views

Will the diagonal elements of transitive closure matrix always be 1?

Rishabh Narula
  • 1
1 vote
1 answer
25 views

Integration by parts and divergence of curl

Daniele Tampieri
  • 8,578
0 votes
0 answers
7 views

Explanation of probabilities in discrete Markov chain process

Bogaso
  • 179
3 votes
2 answers
29 views

Derivative of a matrix inverse with respect to a parameter

Dumper D Garb
  • 566
0 votes
0 answers
24 views
+200

2D Integral of inverse of product of absolute values.

Sven-Ole Behrend
  • 550
-1 votes
0 answers
16 views

How to show that the bracket $\{\cdot, \cdot \}$ satisfies Jacobi identity?

Anil Bagchi.
  • 2,595
-3 votes
0 answers
22 views

how can i prove that??

user123456789
  • 89
0 votes
1 answer
12 views

Consistent unions of first-order theorems and the cardinality of the component models.

Mark Kamsma
  • 11.2k
2 votes
0 answers
23 views

Sum of series related with limit theorems in probability

CantorEuler1996
  • 75
1 vote
2 answers
24 views

"Shortcut" to find the projection of a vector onto a subspace

user3257842
  • 2,907
-1 votes
0 answers
10 views

Find $A_n$ that $S_n^3-A_n$ is a martingale

nodis6
  • 93
-1 votes
0 answers
15 views

Matrix linear mapping

Fnu Fniss
  • 1
-1 votes
0 answers
23 views

Condition of eigenvalues

Barbaros Teoman
  • 1
3 votes
0 answers
33 views

Closed form for $\int \sqrt[n]{\tan x}\ dx$

Utkarsh
  • 361
0 votes
0 answers
11 views

Reference request: Algorithms for constructing Perfect Difference Sets

vvg
  • 1,781
0 votes
0 answers
19 views

Calculate a limit of the ratio of adjacent terms, of an integral sequence

Minh Đức Hoàng
  • 1
0 votes
1 answer
31 views

Optimal betting strategy expected value/payoff/profit confusion

true blue anil
  • 32.5k
0 votes
1 answer
18 views

Why, in a classification task, with $n$ input variables, we can obtain all $2^n$ classification functions for each possible set of missing inputs?

Prem
  • 1,896
2 votes
1 answer
46 views

Use Taylor's theorem to derive an expression for $\log\left(1-\frac{1}{(n+1)^\alpha}\right)-\log\left(1-\frac{1}{n^\alpha}\right)$

Matthew Leingang
  • 23.8k
0 votes
0 answers
10 views

A question regarding bivariate characteristic functions

Sl0wp0k3
  • 456
0 votes
0 answers
16 views

Mathematical analysis - Using a helping function of one variable, analysing a two variable case

Jean Marie
  • 68.7k
0 votes
0 answers
18 views

Necessity of postulating an empty set

carfog
  • 111
-1 votes
0 answers
13 views

I have this tutorial problem and don't even know where to start. We have just studied Green's functions.

dunno
  • 1
0 votes
0 answers
26 views

Approximation of indefinite integral

AnotherUser
  • 1,584
0 votes
0 answers
7 views

Existence of finite group extensions killing cocycles

JeCl
  • 401
0 votes
0 answers
8 views

How do you allocate based on historical outcomes when these can be both positive and negative?

Lars Rönnbäck
  • 245
0 votes
0 answers
21 views
+50

monte carlo error induced by a sampling pattern

0xbadf00d
  • 13.4k
0 votes
0 answers
18 views

Spivak: Understanding discontinuity of the argument function defined on complex numbers.

evianpring
  • 3,767
0 votes
0 answers
11 views

Proving that any submodule of a semisimple module has a simple submodule.

permutation_matrix
  • 952
0 votes
0 answers
15 views

About the definition of the limit of a function ("Mathematical Analysis 2nd Edition" by Tom M. Apostol)

tchappy ha
  • 6,880
1 vote
0 answers
18 views

Why is Hotelling's $T^2 \sim \chi^2_p$ for large $n$?

Willian Leite
  • 11
0 votes
0 answers
12 views

Maximum number of interior local optima of a function

Rittwik Chatterjee
  • 33
2 votes
0 answers
22 views

continuous map with finite limit condition

am_11235...
  • 1,775
3 votes
0 answers
64 views

is the tensor product of coordinate rings always a coordinate ring?

windfish
  • 309
1 vote
0 answers
29 views

Good pairs with $3$ different properties

Aragorn
  • 85
0 votes
0 answers
25 views

Prove that there exist infinitely many positive integer $n$ such that $\sqrt[d]{f(n)}\notin \mathbb{Z}$.

friendOfMath
  • 109
1 vote
0 answers
17 views

Mackey's definition of group action

poisson
  • 717
1 vote
1 answer
274 views

For ideals in a PID: sum = gcd, intersection = lcm

Bill Dubuque
  • 261k
1 vote
0 answers
10 views

Injectivity of map into $H_n(S^n \setminus h(X \times [0,\frac{1}{2}]) \oplus H_n(S^n \setminus h(X \times [\frac{1}{2},1]))$

Arctic Char
  • 14k
0 votes
0 answers
6 views

How does the fourth order Identity tensor look like

MathsforMechanics
  • 3
0 votes
0 answers
10 views

Proving that powerset is a power object in category of sets and functions

tses
  • 113
1 vote
0 answers
58 views

Prove that: $\sqrt [3]{36}<\ln 28<\sqrt [3]{37}$

User
  • 1,698
1 vote
0 answers
16 views

What is the maximum number of intersection of 3d dimention boxes

lsu
  • 33
1 vote
0 answers
7 views

Kernel generalized divergence convergence

Porufes
  • 538
0 votes
0 answers
6 views

finding point of intersection in three planes

Elias K
  • 5
1 vote
0 answers
24 views

A function that is equal to the sum of its partial derivatives

MumboJumbo
  • 343
1 vote
1 answer
64 views
+100

Why doesn't limit of a double/multivariable function needn't exist given that it exists along all straight line?

user12137152
  • 7
2 votes
0 answers
20 views

A question about the use of Silverman's Specialization Theorem

the inner beauty
  • 39
1 vote
0 answers
12 views

Reduction of an affine hyperplane

Tom White
  • 13
3 votes
0 answers
25 views

An estimate for counting integers by complex analysis?

Desiderius Severus
  • 1,476
5 votes
3 answers
73 views

Show that scalene triangle $\triangle ABC$ is a right-triangle if $\sin(A)\cos(A)=\sin(B)\cos(B)$

Blue
  • 70.9k
1 vote
2 answers
39 views

finding the kernel of a polynomial transformation $P \to P$

ACME
  • 5,798
2 votes
1 answer
3k views

Moment of inertia of hemisphere

MathStackExchange
  • 749
0 votes
0 answers
5 views

Optimization problem on stochastic matrices

Vezen BU
  • 1,102
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