Skip to main content

Explore our questions

0 votes
1 answer
14 views

Partial Derivative of 𝑣(𝑥)^𝑇𝐴 with respect to 𝑥

0 votes
2 answers
31 views

Find the coordinates of the closest point on the surface of the ellipsoid to the line in space

4 votes
1 answer
72 views

Upper bound for $\sum_{k=1}^n a_{k}b_{n+1-k}$ with $\sum_{k=0}^{j} a_k b_{j-k} =1$

0 votes
0 answers
2 views

Computing a limit for variable $a\in\mathbb{R}$ using measure theory

0 votes
0 answers
4 views

When $\sup_{x\in\mathcal{X},z\in\mathcal{Z}}|g(z,x)|<t$ how to derive $E_x[f^2(z,x)]-E_x[g^2(z,x)]\geq E_x[\mathbb{1}_{|f(x)|>2t}(f^2(z,x)-g^2(z,x))]$

2 votes
1 answer
11 views

Arranging $𝑘$ distinct $2$-square dominoes on a horizontal strip of $2n$ squares

0 votes
0 answers
4 views

Converting $x^3$ optimization to an equvalent LP problem

0 votes
0 answers
8 views

How to "Clamp" one unit vector between two others?

1 vote
1 answer
1k views

The mean number of customers in the queue (Lq), and the average time spent in the queue (Wq) - finite capacity M/M/1

0 votes
1 answer
262 views

Rank of matrix ABC

0 votes
0 answers
5 views

Weak convergence of degenerated random variable with finite support. Does it work?

0 votes
0 answers
8 views

Directly parameterize to calculate two integrals

0 votes
0 answers
7 views

From cartesian to (discrete) skewed coordinate system

0 votes
0 answers
7 views

Standard form of positive semidefinite polynomial

2 votes
0 answers
26 views

Prove that sequence $(a_n)_{n\geq 1}$ is not convergent.

0 votes
0 answers
5 views

Understanding proof of existence of Schreier transversals

0 votes
0 answers
18 views

How to visualize triangle using a software

0 votes
0 answers
29 views

Existence of Borel set and probability measure

1 vote
0 answers
27 views

Geometric Intuition Behind a Covering Space

0 votes
1 answer
14 views

the infinite category constructed from a model category has all limits and colimits

0 votes
0 answers
13 views

Reverse orthonormal null basis in Minkowski Space

-1 votes
3 answers
45 views

Finding rational numbers between a pair

0 votes
0 answers
33 views

Find pairs $(k,m)$

0 votes
0 answers
19 views

Character of (A,B)

0 votes
1 answer
39 views

Geodesics (definition)

1 vote
1 answer
110 views

Can I apply Jensen's Inequality in this Case?

1 vote
2 answers
46 views

Lack of strong law for triangular array

3 votes
2 answers
681 views

Strong law of large numbers for triangular arrays

2 votes
0 answers
23 views

Using the residue theorem to compute two integrals

1 vote
1 answer
1k views

Orthogonal complement of the kernel of $u\in B(H, H')$

0 votes
0 answers
17 views

Change of variables Gamma and Dirichlet distribution

2 votes
1 answer
70 views

Gaussian map and curvature for a sphere

0 votes
0 answers
13 views

Why is the von Neumann inequality not always fulfilled for n-tuples of commuting contractions? Why cant we just take the single dilations and get it?

4 votes
1 answer
147 views

Can an Odd Perfect Number be a Carmichael Number?

4 votes
2 answers
96 views

Trying to prove monotone-sequences property ⇒ Archimedean property

0 votes
1 answer
9 views

Does an equivalent of the condition number for the error in system coefficients of a linear equation system exist

2 votes
0 answers
41 views

Surreal numbers by Knuth, the "bad numbers" proof.

4 votes
1 answer
81 views

Prove that $\sup⁡(A\cup B)=\max\{\sup⁡(A),\sup⁡(B)\}$

16 votes
2 answers
11k views

How would one evaluate $\int\frac{x\sin(x)}{x^2+1}$ over the real line?

1 vote
0 answers
16 views

Uniqueness of the $A$-scheme structure on $\operatorname{Proj} B$

1 vote
0 answers
23 views

Map of global sections surjective under a local condition

0 votes
0 answers
24 views

Adjoint triplet induced by exact functor of stable categories

0 votes
0 answers
7 views

What is the class of languages generated by strongly connected automata (each state is accessible from any other one)?

2 votes
1 answer
60 views

Proving a distribution is not infinitely divisible

0 votes
1 answer
4k views

Expectation of convex function

1 vote
1 answer
23 views

How to determine the elevation at the edges of a tilted rectangle?

2 votes
1 answer
31 views

Motivation for Lie bracket on $\Omega^1(P)$ for a Poisson manifold $P$

0 votes
0 answers
72 views

Rescaled time Ito Integral

0 votes
1 answer
23 views

Compute residue of pole of order $m$ of complicated function

1 vote
1 answer
41 views

Prove/disprove $\sum_{i=1}^n \left\lfloor {x_i}^{y} \right\rfloor \leq \left\lfloor x^y\right\rfloor$ for $x_i,y\geq 1.$

0 votes
1 answer
45 views

Ideal $ \langle x_1^2 - x_1 , \ldots , x_n^2 - x_n \rangle $ radical?

0 votes
0 answers
39 views

Given the function $f : \mathbb{C} \to \mathbb{C}$ with the prescription $f(z) = \cos z$.

3 votes
2 answers
144 views

usage of Leibniz notation for things like $\frac{d^2y}{dt^2}$ and $\frac{dy'}{dy}$

0 votes
1 answer
42 views

Find a sequence function for combinatorial sequences

4 votes
1 answer
333 views

Is there a coordinate-free proof of this Lie derivative identity?

1 vote
0 answers
20 views

Approximation of a class of measurable functions by simple functions with "compact domain"

0 votes
0 answers
18 views

finding the tangent cone

0 votes
0 answers
15 views

Woodbury matrix identity with a minus sign

1 vote
1 answer
26 views

The action of $SL(n,\Bbb{R})$ on the tangent space of $SL(n,\Bbb{R})/SO(n)$.

2 votes
3 answers
3k views

Let $A,B \subset \mathbb{R}$. Show that $\sup(A \cup B) = \max\{\sup A, \sup B\}$

8 votes
1 answer
3k views

The total variation and the integral of the derivative

3 votes
1 answer
96 views

Not enough degrees of freedom in Euler Lagrange equation

0 votes
0 answers
7 views

the 1-factor graphs

1 vote
1 answer
18 views

Uniform convergence and differentiability, question about the proof

0 votes
0 answers
18 views

Is there a propositional proof system that is not known to be simulated by extended Frege?

6 votes
0 answers
132 views
+50

Calculate the Laplace transform of the function $\frac{\sin t}{t}$ and then use it to compute the integral

2 votes
0 answers
12 views

Existence of multidimensional Gaussian processes

0 votes
0 answers
30 views

Galois connections for contexts

1 vote
0 answers
17 views

Inertia field example of $ \mathbb{Q}_5(\sqrt[4]{50})$

0 votes
0 answers
7 views

Radius of balls in estimates for De Giorgi method

2 votes
1 answer
29 views

Is there a function whose maximizers remain the same after any affine transformations?

0 votes
0 answers
18 views

What is the distribution of a squared Rademacher random variable?

3 votes
0 answers
57 views

$L^2$ vs $L^\infty$ projection

0 votes
0 answers
13 views

Number of chords to partition concentric circles to exclude area

0 votes
0 answers
27 views

circle passing over another circle

user avatar
-1 votes
2 answers
34 views

Simplify the following using logical equivalence, and prove equivalence: ~(~p ∧ q) ∧ (p ∨ q) ≡ p

2 votes
1 answer
44 views

Tropicalizing products of polynomials

4 votes
1 answer
86 views

Order between the solutions of linear recurrences.

6 votes
2 answers
137 views

Is $\text{BRANCH}(n)$ finite for $n > 2$?

0 votes
0 answers
22 views

Integrability condition of composite function in Jensen's inequality

1 vote
0 answers
34 views

Two numbers written on a board get replaced

0 votes
0 answers
14 views

Grounding the concept of a Free Vector space of the cartesian product of two vector spaces

0 votes
1 answer
42 views

Proof that $\ln \det(\mathbf I + \mathbf X\mathbf Y^{-1}) = \ln \det (\mathbf I + \mathbf Y^{-1/2}\mathbf X \mathbf Y^{-1/2})$

0 votes
0 answers
28 views

Prove/disprove upper bound and lower bound of the Integral

1 vote
0 answers
33 views

Finishing the proof of the triangle inequality of Hausdorff metric

0 votes
0 answers
16 views

Product of Topological Spaces in First-Countable iff there's a Countable Sub-Group of the Spaces that Doesn't Have the Trivial Topology

1 vote
1 answer
1k views

Maxmin and minmax strategies

3 votes
0 answers
28 views

Permanent divisor in highly composite numbers

2 votes
2 answers
58 views

Are linear representations of finite groups in one-to-one correspondence with modules over the group algebra?

1 vote
0 answers
9 views

DKW Inequality and convergence in probability

2 votes
0 answers
20 views

Example of a finitely generated metabelian group whose Fitting subgroup is not nilpotent

0 votes
0 answers
9 views

How to use BCH formula to compute mutiplication of group element?

1 vote
0 answers
82 views
+50

Sign permanence of locally Lipschitz functions calculated on a sequence

2 votes
2 answers
123 views

Mass Function for a Geometric distribution with two non-fail outcomes.

0 votes
1 answer
40 views

cos function strange question in numerical analysis

15 votes
4 answers
31k views

Distributing $n$ different things among $r$ distinct groups such that all of them must get atleast $1$

Browse more Questions