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Interesting 53 Bountied Hot Week Month
0 votes
0 answers
1 view

Probability of the surface area of a pentagonal prism being greater than the volume

Noah D.
  • 123
0 votes
1 answer
10 views

Find a degree 3 polynomial that has a galois group of the extension field which is isomorfic to the ciclic group of order 3.

Noah Solomon
  • 1,743
0 votes
0 answers
2 views

Finding an expression for the rate of change of a spherical container

JulianAlvarez
  • 5
3 votes
3 answers
83 views

Evaluate Integral : $\int\;\frac {1}{\sqrt {1-e^{2x}}}dx$

Anne Bauval
  • 18.8k
0 votes
2 answers
18 views

What are the conditions for a non-Hermitian matric's Rayleigh quotient to be less than its maximum eigenvalue?

user1551
  • 130k
2 votes
0 answers
14 views

What is an Archemedean prime?

Izzy Garcia
  • 21
0 votes
0 answers
11 views

Verify Kuhn-Tucker conditions are not satisfied

Numb3rs
  • 2,037
1 vote
0 answers
6 views

Studying the connection between modules and their torsion submodules

user971950
  • 127
2 votes
3 answers
27 views

Independence and independent increments

Will
  • 5,032
1 vote
1 answer
147 views

Show that if $\mu,\eta\in I\implies \dfrac{\mu+\eta}{2}\in I$ and $\{0,1,1/2\}\subset I$ implies $[0,1]\subset I$

Sooraj S
  • 7,277
1 vote
1 answer
34 views

A uniformly integrable family induced from taking conditional expectation of a square-integrable random variable

Davide Giraudo
  • 165k
0 votes
1 answer
21 views

Constructing a parallelepiped with all faces having equal diagonals, what goes wrong?

user
  • 24.2k
0 votes
2 answers
13 views

How many different possibilities can two identical balls be arranged inside 10 different jars?

G2PL2N
  • 21
0 votes
1 answer
15 views

Efficient way to compute average of outer products.

Carl Christian
  • 11.4k
0 votes
0 answers
13 views

Proving the constancy of the speed of light using Maxwell's equations

Brendan Malaugh
  • 1
0 votes
0 answers
7 views

Intuition for representation of a quiver inherited from the representation of the quiver's path algebra

Tryst with Freedom
  • 9,936
0 votes
0 answers
8 views

Find the self-similarity function of an integral

aa23
  • 57
1 vote
0 answers
17 views

Exact sequence of the mapping torus

Math_Day
  • 931
1 vote
1 answer
15 views

Given random variables $S_n \sim Pois(n)$, can we think $S_n=X_1+X_2+...+X_n$ where $X_i \sim Pois(1)$?

Davide Giraudo
  • 165k
0 votes
0 answers
20 views

Is there a composition of a binary function (that's an elementary function) that is a composition of only unary functions?

IV_
  • 4,885
0 votes
0 answers
29 views

Prove $\sqrt {1+a} +\sqrt {1+b} +\sqrt {1+c} \geq \frac{\sqrt 2}{3} *(a+b+c)^2$

Samael Manasseh
  • 565
0 votes
0 answers
20 views

Question regarding the Hardy-Littlewood maximal inequality

爸爸到底
  • 43
2 votes
1 answer
15 views

Proof of the Gelfand-Naimark Theorem

Martin Argerami
  • 193k
0 votes
1 answer
37 views

How to derive $Exp(\phi) R = R Exp(R^T \phi)$ for SO(3)

Mauricio Cele Lopez Belon
  • 1,428
0 votes
1 answer
26 views

Compare the variances of $X^2$, $X$ and $\sqrt{X}$.

Golden_Ratio
  • 11.8k
0 votes
0 answers
8 views

The volume of the solid obtained by rotating the region bounded by y=5x and y=x^2 about x=5

Michael Champagne-Giamos
  • 1
1 vote
1 answer
25 views

Should discrete and continuous time models give the same results?

Ethan Bolker
  • 86.4k
0 votes
0 answers
12 views

Is every complex root of an integer polynomial a product of an algebraic real number and a root of unity?

jcmle
  • 31
0 votes
0 answers
5 views

Positivity of the spectrum of a quasi-stationary signal

NokiYola
  • 101
1 vote
1 answer
27 views

Evaluate limit of $\int_{x^2}^{x^3}t\sinh^{-1}(t^4)dt$

Sri-Amirthan Theivendran
  • 30.5k
0 votes
0 answers
24 views

Formulate a Markov Decision Problem for the given strategy

Bot
  • 1
3 votes
1 answer
29 views

Closedness of operator Hardy type

cs89
  • 334
0 votes
1 answer
11 views

Find the field line to the vector field

Mhd Bhsn
  • 61
0 votes
0 answers
8 views

what is the full formulation of this expression?

Sam
  • 25
0 votes
0 answers
18 views

Finding the rank of a 4 by 5 matrix

Bob
  • 3,559
2 votes
1 answer
57 views

Adjacent Basic Solutions of a Standard Polyhedron

Hosein Rahnama
  • 14.2k
0 votes
1 answer
22 views

Calculating the barycentric coordinates for a point based on edge lengths alone

Jean Marie
  • 72.7k
1 vote
1 answer
30 views

Property of Lebesgue Density Point

Highlander13
  • 195
0 votes
0 answers
18 views

Set of real numbers such that no sum of its elements is an element and all partial sums are unique.

ty.
  • 540
0 votes
1 answer
22 views

Prove if $S \subseteq Ass_N(M)$ then their exist a submodule $N$ such that $Ass_R(N)=S$.

ben huni
  • 137
0 votes
0 answers
14 views

Laplace operator from the dot product of a gradient with itself

Manjoy Das
  • 970
1 vote
0 answers
29 views

Expected smallest interval size when intervals are subdivided randomly $N$ times.

Caleb
  • 145
5 votes
1 answer
65 views

$\int_0^\infty\frac{u}{2\nu^2}\left(u+\left(u^2+\nu^2\right)^\frac{1}{2}\right)\left(e^{-u}-e^{-\left(u^2+\nu^2\right)^\frac{1}{2}}\right)\sin(ut)du$

DinosaurEgg
  • 9,074
-2 votes
0 answers
21 views

Prove that $\ Ω(n^n) = \ (3^{2^n})$

TShiong
  • 1,264
0 votes
0 answers
10 views

How to use Poisson distribution to generate bursts of data packets

J. W. Tanner
  • 58.6k
2 votes
0 answers
14 views

Colouring a map with disconnected regions

user2296226
  • 65
0 votes
0 answers
11 views

Epsilon-Delta Theorem for Darboux Integrability

Dan1702
  • 1
0 votes
1 answer
27 views

Variance of sample mean

Jakub Komárek
  • 26
0 votes
0 answers
14 views

Validity of a proof of the Fisher Information Data Processing inequality, $I(f(X)) \le I(X)$.

Thomas Ahle
  • 4,326
-1 votes
0 answers
17 views

I'm playing a game where I'm tossing a fair coin. When it's heads I gain a dollar. When it's tails I lose a dollar. I play until I have +24 or -36

user avatar
kashix9
0 votes
0 answers
9 views

Kronecker sum as a Kronecker product

user3284182
  • 19
0 votes
0 answers
6 views

Recovery Time for Logistic model equation with harvesting

Green Ideology
  • 3
0 votes
0 answers
5 views

Embedding arbitrary graph in $\mathbb Z^d$ nearest neighbor lattice

jdods
  • 5,900
0 votes
1 answer
19 views

Descriptive function of motion of a rigid rod around an axis and, by analogy, around a cylinder and the volume "swept" from it

Paul Sinclair
  • 40.6k
2 votes
0 answers
29 views

Given $f(x+y) = f(x)\cdot f(y)$, prove or disprove $(f(x))^\lambda = f(\lambda x)$ for $\lambda \notin \mathbb{Q}$

Morphenius
  • 21
3 votes
1 answer
29 views

Evaluation of a Trigonometric Limit...

user170231
  • 14.1k
2 votes
0 answers
21 views

Motivating Gauss's suggestions of prize problems for the Goettingen university.

user2554
  • 932
0 votes
0 answers
11 views

Trouble understanding conditions to the Heine definition of the limit

dynamo58
  • 77
0 votes
0 answers
24 views

Issues with Lerch Phi and Abel-Plana formula branch cuts & integral divergence

Kamila Szewczyk
  • 121
0 votes
0 answers
24 views

Expected value of the exponential of a Dirichlet distribution

user_lambda
  • 1,111
-1 votes
0 answers
16 views

Scale box to fill with offset

Nick Combs
  • 99
0 votes
0 answers
12 views

Determining color of ball from urn with condicion that the two next balls are white

calculatormathematical
  • 1,650
0 votes
1 answer
16 views

Explanation to the "Synergestic relationship" example in Osborne's "Introduction to game theory"

rizzledazzle
  • 1
2 votes
0 answers
12 views

Applications of analytic set theory in probability theory

mathlover
  • 101
0 votes
0 answers
4 views

Trouble with converting the negation of a formula to CNF

Gerhardus Carinus
  • 341
1 vote
0 answers
18 views

The linear system associated to a blow-up(of surfaces)

AHappyMathematician
  • 720
-2 votes
0 answers
23 views

Find all solution of $(n-1)\lfloor x \rfloor + n\lceil x \rceil = (n+1)\{x\}$

Semiclassical
  • 15k
0 votes
1 answer
22 views

Wrapping my head around hypergeometric distributions

heropup
  • 121k
0 votes
0 answers
24 views

Upper bound of the dot product of two real-valued vectors

Fujo
  • 1
2 votes
1 answer
27 views

Is a directional derivative both a 1-form and a vector field simultaneously?

Abezhiko
  • 3,155
0 votes
0 answers
9 views

Weierstrass-Erdmann condition in light reflection

lmyt
  • 1
0 votes
0 answers
18 views

Analogy of Archimedean Property of powers of rational numbers

efsdfmo12
  • 309
0 votes
0 answers
3 views

Evaluate area bounded by curve S=0, its Latus Rectum and X-axis

user1157207
  • 250
1 vote
0 answers
7 views

Doubly transitive action on upper half plane.

user1138886
  • 149
0 votes
0 answers
14 views

Non-convex optimization problem transformation

mandez
  • 750
1 vote
0 answers
7 views

Intersection of perpendicular tangent lines - generalization of directrix?

Steve Dalton
  • 11
0 votes
0 answers
16 views

Let $n\geq 3$. Is there a connected, planar, bipartite graph with $n$ regions and $n$ vertices?

QC_QAOA
  • 11.1k
8 votes
1 answer
318 views

cardinality of a basis for a topology

Steven Clontz
  • 1,128
0 votes
1 answer
41 views

What is the generalized solution to $M = \int_0^1 (1-x^m)^n$?

Martin R
  • 97.6k
6 votes
1 answer
49 views

Find the limiting distribution of $\bar{X}=\frac{\sum X_i}{n}$.

Davide Giraudo
  • 165k
0 votes
0 answers
15 views

Calculating a sub percentage when other weighted sub percentages and the total percentage are known.

Bob A.
  • 9
1 vote
0 answers
14 views

Showing that $\{x \in X: \sup_n\sum_{i=0}^n f(T^i(x)) = \infty\}$ is a $T$ invariant set

Epsilon Away
  • 820
0 votes
0 answers
10 views

Markov chains: Prove vector of mean hitting times is minimal non-negative solution

Bob Zorro
  • 81
0 votes
0 answers
14 views

$2$-norm of a matrix obtained through discretization of the eigenvalue problem

Rodrigo de Azevedo
  • 19.9k
11 votes
2 answers
3k views

Convex hull of orthogonal matrices

Rodrigo de Azevedo
  • 19.9k
6 votes
0 answers
108 views
+250

When is $\int_0^\infty\int_0^\infty\int_0^R f(k,q,t,r)\,\mathrm{d}t\,dq\,\mathrm{d}k\stackrel{?}{=}g(r)$ where both $f$ and $g$ are known functions

Staufenberg
  • 33
0 votes
1 answer
41 views

Is there a name for permutations of numbers 1 to n such that there is no case where $i\to j$ and $j\to i?$

Mike Earnest
  • 65.1k
3 votes
0 answers
34 views

Converse of Dynkin's formula

Marco
  • 71
3 votes
5 answers
125 views

Solving a tricky equation $4x^3-5x^2-5 = 0$

D S
  • 1,807
-1 votes
1 answer
36 views

Help understanding discription of a mathematical tent

Mike Earnest
  • 65.1k
2 votes
1 answer
248 views

Closed subschemes and quasi-coherent sheaves of ideals

user1099005
  • 1
0 votes
0 answers
10 views

Existence of a non-trivial linear combination of k+1 orthonormal linearly indep. vectors in the left nullpace of a matrix with k columns

Aid
  • 69
1 vote
0 answers
34 views

How do we split this integral?

Elizabeth Huffman
  • 577
0 votes
0 answers
17 views

Number of polyhedra covering a sphere

NicAG
  • 417
4 votes
1 answer
52 views

How to manually infer that integral result?

xpaul
  • 39k
0 votes
0 answers
20 views

Convergence of infinite series after integration

Alex
  • 55
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