Explore our questions

0 votes
0 answers
14 views

Curious about what my real analysis teacher means when she uses $1 \leq k < j \leq n$ as the bounds for summation.

0 votes
0 answers
3 views

What Percent of the Time will a Given Random Walks will Behave a Certain Way?

0 votes
1 answer
54 views
+50

The 50 game between two players, selecting numbers between 1 and 10 inclusive + variations

-2 votes
0 answers
79 views

How can a continous function be one to one any time?

0 votes
0 answers
9 views

Set notation meaning of $U_{1/n} (\xi)$

1 vote
1 answer
12 views

Is there a way to show that this large equation approximately simplifies to $d\sin\theta$ under certain conditions?

1 vote
2 answers
56 views

Diferencial Equations solve $\frac{e^{2x}+2x}{e^{x}}dy-(1+2y)dx=0$

0 votes
1 answer
19 views
+50

Existence of Nash Equilibrium in a Game with Mixed Strategy Spaces

0 votes
0 answers
3 views

Definition of "interval of continuity" for function defined on sets

1 vote
2 answers
64 views

area between two curves 10

3 votes
1 answer
2k views

How does dividing remove repetitions?

0 votes
1 answer
159 views

Chance of getting $3$ same faces and $3$ different faces when $6$ dice are thrown

0 votes
0 answers
258 views

How to convert binary floating point to decimal scientific notation?

1 vote
3 answers
101 views

Problem of probability of two independent events

1 vote
2 answers
1k views

The Laplace transform of any null function is 0?

0 votes
0 answers
7 views

Transitive commutative property in the free group on two generators?

0 votes
0 answers
35 views

Solution to a nonlinear ode equation

0 votes
0 answers
5 views

Is every Borel probability measure on Lindel$ӧ$f space $\tau$-additive?

2 votes
2 answers
142 views

Hamiltonian Circuit Counting and Classification Problem

1 vote
0 answers
98 views

Vector-valued weak analytic functions are strong analytic

0 votes
1 answer
26 views

Can we inscribe a rectangle in the region determined by a function and its translate?

1 vote
0 answers
36 views

A rational section with no poles is regular

1 vote
0 answers
46 views

Diagonalization/Eigenvalues of block matrices

6 votes
0 answers
117 views
+50

A probability involving areas in a random pentagram inscribed in a circle: Is it really just $\frac12$?

0 votes
0 answers
12 views

Solve $f’’(x) = f(1 - x) - \frac{1}{2} (f(0) + f(1)) + \left(1 - \frac{x}{2}\right)f’(1 - x)$.

3 votes
1 answer
91 views

Integer Solutions to the Equation $(n-1)(x+1)(y+1)(z+1)=nxyz-1$

3 votes
1 answer
121 views

What functions describe themselves with degree n

0 votes
0 answers
5 views

double commutant of unitary operators of a Von Neumann algebra.

0 votes
0 answers
12 views

If $A \subset \mathbb{R}^n$ is a perfect set, is there a function $f$ such that $\lim\limits{x\to a}f(x) =\infty$ for all $a\in A $?

0 votes
0 answers
4 views

Clarifying between sample date and input data.

1 vote
1 answer
6 views

If $\int_Afd\mu\geq0$ for all $A\in\mathscr{A}$, then $\int f\chi_Ad\mu=0$ for $A=\{x\in X:f(x)<0\}$

1 vote
1 answer
20 views

Asymptotic distribution of MLE of $\sigma$ for $N(0,\sigma^2)$

6 votes
0 answers
166 views

How to evaluate $\int \frac{x^2\cos(x)+\sin^2(x)+2x\sin(x)(1+\cos(x))+1}{(1-x\sin(x))\sqrt{(1-x^2)(1-\sin(x))}}dx$?

-2 votes
0 answers
21 views

Harmonic divergence and the proof of infinite primes

0 votes
0 answers
12 views

Monotone functions on $\mathbb{R}^n$

0 votes
1 answer
25 views

Show that $\mu((\cup_{k=1}^\infty E_k)^c)=0$.

1 vote
0 answers
13 views

uniformly sample a point in a triangle $(1,0,0), (0,1,0), (0,0,1)$

-1 votes
0 answers
17 views

Is there always a ring where Automorphism of the ring is another ring

5 votes
1 answer
2k views

Inverse Fourier Transform gives a complex function when it shouldn't

0 votes
0 answers
27 views

Use quiver representation to study integral extension of Artinian rings

-1 votes
1 answer
39 views

Life Expectancy of 50 Ants

0 votes
0 answers
3 views

Find the supremum of partition number, keeping row sums and column sums zero

1 vote
2 answers
46 views

Jacobian matrix from mass action kinetic ODE network

0 votes
0 answers
26 views

Prove that the set of all mappings from the set of integers to the set of integers is an uncountable set.

0 votes
0 answers
11 views

$N( (p) \mathcal{O}_F) = p^n$, where $n:=[ F : \mathbb{Q}]$ ( Norm of ideal )?

6 votes
1 answer
108 views
+100

Norm of triangular matrix with constant rows $\approx \sqrt{d \log 2}$?

0 votes
0 answers
11 views

How do I prove the symmetry of the Hyperbolic metric on the Half-Plane?

0 votes
1 answer
35 views

Question in construct a compact set of real numbers whose limit points form a countable set

2 votes
0 answers
10 views

Relation between finite abelian monoids and finite abelian groups

1 vote
0 answers
94 views

Exercise 21.1 in Forster's Riemann Surfaces

0 votes
0 answers
18 views

How to solve this Sturm-Liouville problem? Is there a general approach?

1 vote
1 answer
2k views

$|P(z)|\le r^n C$

3 votes
1 answer
17 views

Directly computing dimension of $M_P/M_P^2$

-1 votes
0 answers
34 views

How many times -2 is smaller than -1?

0 votes
1 answer
25 views

Can $\sum_{n=-\infty}^{\infty}{{k^{|n|}} \ln\left[ \left( \sqrt{x^2+(y+2ng)^2} \right) \right]}$ be calculated$(0<k<1)$?

0 votes
3 answers
52 views

How can I approximate $\ln(x + 1) $ knowing only $\ln(x) $?

2 votes
1 answer
50 views
+50

Equivalent definition of independent increments of a stochastic process.

4 votes
1 answer
98 views

Periodic perturbation of ODE

0 votes
3 answers
115 views

First order logic, why are the quantifier rules of inference reasonable?

0 votes
1 answer
21 views

Show that $ \lim_{n\to\infty} nP(|X_1|>\epsilon \sqrt{n})=0 $.

2 votes
0 answers
36 views

Center of a given ellipse such that it is inscribed in another ellipse

3 votes
1 answer
40 views

Lie algebras with a single ideal and with all ideals

0 votes
1 answer
7 views

Regularity of a sequence with terms in Sobolev space

0 votes
1 answer
1k views

How to calculate sample mean and variance given the confidence interval for the normal?

1 vote
0 answers
9 views

Distinguishing the different equivalent classes of the faces in the lens space.

0 votes
0 answers
24 views

Questions on harmonic functions

2 votes
2 answers
40 views

Distribution of primes in primitive Pythagorean triples

0 votes
0 answers
30 views

Computing a surface integral

0 votes
0 answers
19 views

Characterization of PIDs

3 votes
1 answer
41 views

Showing a basic market admits no arbitrage

0 votes
0 answers
8 views

Stochastic processes with elegant closed form distributions

1 vote
1 answer
33 views

A strange equality of distribution in Stochastic Processes

4 votes
0 answers
32 views

A probability involving side lengths of a random triangle on a disk: Is it really $\frac37$?

0 votes
0 answers
15 views

Understanding proof of orientability of the level set of a regular value in $\mathbb{R}^{n+1}$

2 votes
0 answers
22 views

Extensions of $G$-modules parametrized by $H^1$

-1 votes
0 answers
10 views

Deduce 3D position and angle from 3 2D joysticks

0 votes
0 answers
10 views

Is every Lie-super algebra special?

3 votes
0 answers
58 views

If $B^3=B$, is $B$ diagonalizable?

36 votes
1 answer
14k views

Undergrad-level combinatorics texts easier than Stanley's Enumerative Combinatorics?

0 votes
0 answers
16 views

Symmetries of the curvature tensor and contractions

0 votes
0 answers
6 views

Checking KKT Constraint Qualifications

1 vote
0 answers
14 views

Differentiation of matrices with respect to a structured matrix

2 votes
0 answers
32 views

continuity of map of distances

0 votes
1 answer
1k views

P-values for one and two tailed tests, formally defined?

0 votes
0 answers
7 views

Optimal stopping time and optimal average reward 2

0 votes
0 answers
6 views

What is the domain of Caputo fractional derivative? Is zero included or excluded?

1 vote
1 answer
18 views

Infinite integral of the Fourier transform of arbitrary function related to the time domain.

3 votes
0 answers
36 views

Is there a kind of L'hopital's Rule for multivariable calculus?

1 vote
0 answers
8 views

Extending Special Automorphisms of Lie Manifolds

0 votes
2 answers
49 views

Proving that Jacobian of Composition is equal to Composition of Jacobians using epsilon-delta

1 vote
0 answers
38 views

Show that $\lim_{x\rightarrow a}F(x)$ exists finitely for $\int_a^b|F'(x)|dx<\infty$, $F\in C^1$

1 vote
0 answers
19 views

How does the Suzuki sporadic group act on an extraspecial group?

0 votes
0 answers
9 views

Sequence involving plane curves is exact

0 votes
1 answer
55 views

Computing an abelian group.

1 vote
0 answers
12 views

Noether normalization for Laurent polynomial algebras

6 votes
0 answers
53 views

Which differential equations are invariant under change of camera projection?

Browse more Questions