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16 votes
4 answers
337 views

Optimal permutation of transition probabilities in random walk to minimize expected stopping time

0 votes
0 answers
8 views

formula to weight a pair of points based upon their proximity to each other and their proximity to other points in the set

2 votes
1 answer
18 views

Curve integral $\int_\gamma y^2 dx + x^2 dy$

0 votes
0 answers
7 views

Does linearity on all commutative subalgebras imply linearity on the whole algebra?

0 votes
0 answers
21 views

Is the limit of F(x)=x^{(x-1^{(x-2^{(...^{x-(x-1)})})})} equal to a tetration of 10 raised to 5.2629982...?

0 votes
0 answers
26 views

Maximum principle for $\partial_t u = e^{-u}\Delta u$ on 2-manifolds

2 votes
1 answer
24 views

Show that $\sin(z+w) = \sin(z)\cos(w) + \cos(z)\sin(w)$ using Taylor series

0 votes
0 answers
7 views

Karhunen-Loeve expansion of a random variable in finite dimension

0 votes
1 answer
38 views

Defining Sample Space for Stochastic Processes

0 votes
0 answers
10 views

How do I show $y\in B(x,\delta)\implies B(y, \delta-||y-x||_{\infty})\subseteq B(x,\delta)$?

2 votes
0 answers
29 views

Being explicit about the kernel of the map $R[x,y]\to \frac{R}{I}[x,y]$ and coefficients of $\frac{R}{I}[x,y]$

0 votes
0 answers
8 views

annihilator polynomial and cyclic subspaces

-2 votes
1 answer
25 views

Which one of the following is TRUE(Real Analysis)?

1 vote
1 answer
36 views

The expected value of the sum of squared positives of $n$ i.i.d. normal random variables

0 votes
1 answer
24 views

Commutativity question in 5.40 Proof in Sheldon Axler's Linear Algebra Done Right (4th edition)

1 vote
0 answers
16 views

Morse Homology: any smooth map $f:S^k\times S^l\to S^{k+l}$ induces the trivial homomorphism on the homologys

1 vote
1 answer
23 views

Suppose that the eigenvalue of largest magnetude of $P$ is simple. Is it true that the the same happens to $U P$ for any unitary matrix $U$?

1 vote
2 answers
2k views

Linear Algebra and planes in Cartesian space

-1 votes
0 answers
7 views

Find the probability from here that $I$ asnd $J$ overlap.

0 votes
1 answer
42 views

Dual functor in symmetric monoidal categories respect composition.

-1 votes
0 answers
17 views

What are some factors that affect the difficulties in working with different branches of mathematics?

2 votes
1 answer
57 views

Changing the field of an irreducible representation leaves it irreducible.

0 votes
0 answers
9 views

Prove that a commutative ring $R$ is a semiprimitive ring if and only if $0$ is the only nilpotent element in $R$

2 votes
0 answers
62 views

Does the sequence of cosines converge for all complex numbers?

0 votes
0 answers
18 views

Expressions in Fermat Last Theorem style (modular)

0 votes
0 answers
12 views

Find the maximum of a combinatorial problem

1 vote
1 answer
44 views

Proving that a recursive sequence is bounded and monotone

0 votes
0 answers
5 views

Algorithm of computing the x^m term of $\prod_{i=1}^n (1+x^{a_i}) mod p$

1 vote
0 answers
9 views

Is there something similar to an exponentially modified gaussian distribution that goes in the opposite direction?

0 votes
0 answers
6 views

Frege-Hilbert style vs. Gentzen-style proof calculi (treatment of hypothesis)

0 votes
0 answers
7 views

Proving an immersed manifold cannot be embedded from Lee

0 votes
0 answers
13 views

Can you find the error in this computation?

0 votes
0 answers
5 views

Fixed point stability for stochastic difference equations

4 votes
1 answer
80 views

Some errata in Petersen's Riemannian Geometry book 3rd?

0 votes
0 answers
30 views

Is my answer correct? (Relations)

1 vote
0 answers
18 views

spivak chapter 22 (3ed.)-Problem 6-section e

0 votes
1 answer
29 views

Difference between place, valuation, prime, and absolute value

1 vote
1 answer
156 views

Continuation of the Riemann Prime Counting function

6 votes
1 answer
1k views

Relatively Prime Numbers and Number of Divisors of n

-1 votes
1 answer
49 views

$e^x=kx$ ( where k is an arbitrary constant). Find range of $k$ such that it has two solutions

0 votes
0 answers
4 views

Correlation coefficient and coefficient of determination

2 votes
2 answers
74 views

Finding the initial value such that $a_n$ given by $a_{n+1}=2-a_{n}^2$ converges

0 votes
0 answers
6 views

What is the upper bound on the error of estimating mutual information, when distributions are estimated by histogram density estimation methods

0 votes
0 answers
23 views

How $〈 , 〉$ (Tate duality pairing) induces non degenerate pairing $E(K)/pE(K)\otimes H^1(G_K,E)[p]\to \Bbb{Z}/p\Bbb{Z}$?

2 votes
1 answer
943 views

How many possible combinations? 4 x 4 grid of tiles (with caveats)

0 votes
3 answers
83 views

Is it fair to play the game for $1000

-1 votes
0 answers
33 views

If $A\Rightarrow B$, how does $\bar{A}$ say nothing about B?

0 votes
0 answers
18 views

Characterization of Ulrich bundles in weighted projective space

0 votes
0 answers
25 views

Primitive Objects in Category Theory

2 votes
2 answers
73 views

Let $G$ be a finitely generated abelian group. Does there exist an exact sequence $0\to \Bbb{Z}/2\Bbb{Z}\to G\to G\to 0?$

2 votes
0 answers
19 views

How to formally refer to equivalence classes *within* a class?

1 vote
0 answers
21 views

Curve integral $\int_C (e^{\sin x}-x^2y) dx + e^{y^2} dy$

0 votes
0 answers
14 views

Questions regarding the proof of the Rayleigh’s equation has at least one limit cycle

1 vote
1 answer
40 views

Smooth versus classical induction for an open subgroup of a profinite group

0 votes
0 answers
39 views

Motivating Canonical Decomposition of Functions

1 vote
0 answers
28 views

Is integral extension of rings a local property?

-2 votes
1 answer
66 views

Can't figure out this Algebra question

0 votes
0 answers
13 views

TVD of parametric Poisson distributions

1 vote
1 answer
36 views

$n_{k+1} = 2^{n_k} n_k$, find a bound between $n$ and $k$

1 vote
0 answers
34 views

No closed form for integrating an exponential times lognormal PDF?

-1 votes
0 answers
27 views

What is Hyper-E notation?

1 vote
0 answers
32 views

Computing the probability density of a function of non-iid random variables.

1 vote
1 answer
20 views

If $f$ is increasing real valued function and $g$ is defined as following then $g$ is increasing and right continuous.

0 votes
0 answers
15 views

How to prove that the difference between two optimizers is lower than something without concrete functional form?

2 votes
0 answers
27 views

Character of a power $\chi_{\rho}(g^k)$ for $SU(N)$

0 votes
0 answers
17 views

Show that $ Y $ is separable, and that the spectrum of $ A$ consists of eigenvalues only.

5 votes
1 answer
1k views

Proving the Extreme Value Theorem

0 votes
0 answers
16 views

Equivalence between $A^{-1}$ adjointable and $A^*$ invertible

0 votes
1 answer
27 views

Prove that no maximum/minimum points exist

1 vote
1 answer
22 views

A nowhere locally constant smooth version of Urysohn's lemma for an empty interior closed set

0 votes
1 answer
34 views

Bijection between minimal $C^*$-tensor product representations, and pairs of its correspondants restriction representations.

1 vote
0 answers
19 views

What is Laplace transform of $t^af(t)$ if Laplace transform of $f(x)$ is $F$.

0 votes
0 answers
28 views

Question about section 10.24 in "Lectures on von Neumann algebras"

0 votes
0 answers
11 views

A property of the Laguerre polynomials

1 vote
0 answers
15 views

How to find the generator matrix for the quotient group $C/C^{⟂}$ using a list of coset representatives of $C^{⟂}$ in $C$?

0 votes
1 answer
29 views

Question about proof in Lemma 10.9 in "Lectures on von Neumann algebras"

0 votes
0 answers
18 views

Odd and even numbers divisors sum properties with exponential base

-3 votes
1 answer
69 views
+50

Bounding $S(n) = \sum_{k=1}^n \mu(k) \left( \pi\left(\frac{n}{k}\right) - \pi(\text{gpf}(k)) \right)$

0 votes
0 answers
19 views

Determine the k largest positive integer that can select k positive integers from {1, 2, ... ,2017} ...

2 votes
0 answers
35 views

Find the $\inf_{f\in M}\sup_{x\in[0,1]}$ of the given expression

0 votes
0 answers
5 views

Lipschitz Continuous Function in the Embedding Space

1 vote
1 answer
118 views

Hyperbolic substitution

0 votes
0 answers
37 views

Conferences dealing w/challenges of teaching higher level math to STEM audiences

2 votes
0 answers
68 views

An inequality involving $|(1/\zeta)^{(n)}(x)|$

0 votes
1 answer
77 views

Prove centre is inside cyclic quadrilateral with perpendicular diagonals

0 votes
0 answers
9 views

Bounding the Stationary Expectation of a Stochastic Process using Perturbation Theory

0 votes
0 answers
10 views

Is the polytope of the dual of a bounded feasible linear program the dual of the polytope of that linear program?

22 votes
0 answers
570 views
+50

Can difference quotient sets be nowhere dense?

0 votes
0 answers
26 views

Bound of greatest common divisor

1 vote
0 answers
36 views

Proof check: Tricky Conditional Variance Calculation

16 votes
2 answers
327 views

Prove that $F_{2n}(x)=0$ has exactly one root in the interval $x\in(0,1),$ and this root $\to 0$ when $n \to \infty.$

1 vote
0 answers
14 views

Open source implementations of euclidean geometery automated theorem provers.

0 votes
1 answer
38 views

How to prove that we can form at least one n-sided convex polygon (not necessarily regular) using the grid points on an infinite uniform grid plane?

1 vote
1 answer
20 views

How to interpret the induction principle of identity type (J rule)?

1 vote
1 answer
51 views

Ring where all elements are potent

0 votes
0 answers
12 views

Calculating radius of curvature of a boundary represented by data points

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