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Interesting 44 Bountied Hot Week Month
0 votes
0 answers
2 views

Convergence rate of a nonlinear fixed point iteration

William
  • 722
0 votes
0 answers
6 views

Given a piecewise CDF find the probabilities

TBD
  • 17
0 votes
0 answers
6 views

Generalize Theorem 1.40 in Rudin's Real and Complex Analysis

Akira
  • 11.9k
0 votes
0 answers
11 views

Most Efficient Way Saving Money (Compound Interest)

BCLtd
  • 113
0 votes
1 answer
21 views

Measurability of an absolutely continuous random variable

RiezFrechetKolmogorov
  • 403
5 votes
3 answers
4k views

Number of elementary multiplications for multiplying 4x4 matrices

Валерий Заподовников
  • 51
0 votes
0 answers
7 views

Give a bijective proof: The number of n-digit binary numbers with exactly k 1s equals the number of k-subsets of [n]

Joshua Aguilar
  • 1
0 votes
0 answers
12 views

Sum of Limits of Functions

Igor
  • 112
0 votes
0 answers
4 views

Concentration inequality for inner Product of two Lipschitz functions

XYZ
  • 101
1 vote
1 answer
16 views

use appropriate laurent series to find the indicated residue.

Kevin Dietrich
  • 76
3 votes
1 answer
70 views

Algorithm for writing an image of a polynomial in a quotient ring in terms of a given basis of the quotient ring.

Ricardo Buring
  • 5,818
0 votes
1 answer
19 views

In a $\triangle ABC$, prove $(a+b+c)\left(\tan\frac{A}{2}+\tan\frac{B}{2}\right) = 2 c \cot\frac{C}{2}$

Blue
  • 70.4k
0 votes
0 answers
8 views

Lifting regular morphisms to the finite cover.

user127776
  • 1,194
0 votes
2 answers
24 views

How to prove monotonicity of this sequence

Beginner
  • 584
0 votes
0 answers
9 views

What math skills do I need to transpose this op-amp formula

Tam
  • 1
1 vote
0 answers
5 views

First order logic augmented with (Prolog) cut?

jweightman
  • 11
0 votes
0 answers
15 views

What are the invariants of Shannon entropy?

Galen
  • 1,458
0 votes
1 answer
17 views

How do you solve this type of equation?

justt
  • 3,829
0 votes
1 answer
15 views

Upper/lower sums in 2 variables of a circle: how to proceed

justt
  • 3,829
3 votes
1 answer
55 views

Prove that $ \lim_{t\to\infty} \frac{\int_{-\infty}^\infty\rho_t(x)\,e^{xt}\cos(\omega xt)\, dx}{\int_{-\infty}^\infty\rho_t(x)\,e^{xt}\, dx}=0.$

Matija
  • 543
1 vote
0 answers
25 views

Orientation of a simple, closed, piecewise regular, parametrized curve

PseudoLooped
  • 401
0 votes
0 answers
9 views

Looking for a “simple” function to fit a numerical solution to a problem

Stephen Connolly
  • 139
0 votes
0 answers
5 views

Is $w$ Killing for some semi-Riemannian metric?

geocalc33
  • 74
1 vote
0 answers
23 views

Newton's Method and convergence

Hitman
  • 523
-1 votes
1 answer
31 views

How to i can graph this function?

Jam
  • 8,548
3 votes
0 answers
10 views

Invariance of a symmetric sum

Jonas Linssen
  • 8,320
0 votes
1 answer
22 views

Number of prime ideal of $ \Bbb{Z}[ \sqrt{-5}]$ above $(2)$

user1090793
  • 685
0 votes
0 answers
21 views

$\Gamma$-convergence and choice of sequence

900edges
  • 1,536
0 votes
1 answer
11 views

Determine the solution set of an inequality by transformations and sign table

user2661923
  • 26.2k
-1 votes
0 answers
16 views

Number of differential equation questions in Gre subject mathematics?

shahab
  • 1
4 votes
2 answers
141 views
+500

Find all possible smarter ways to solve $x^4+x^3-2x+1=0$, with methodological justification.

Blue
  • 70.4k
1 vote
1 answer
16 views

Two vectors $u,v$ from a prehilbert space are orthogonal if and only if... (proof)

Spectree
  • 145
0 votes
1 answer
1k views

Using percentages to apply Fisher's exact test

CommunityBot
  • 1
-2 votes
1 answer
17 views

Proving gcd(n, nk+1)=1

Lộc Huỳnh Xuân
  • 97
2 votes
0 answers
221 views

Ec primes with exponent multiple of $139$

Pirofotulis
  • 21
1 vote
0 answers
27 views

When is a function a Radon-Nikodym derivative?

900edges
  • 1,536
1 vote
1 answer
36 views

Prove that this differential equation has reflective symmetric about a line

MrFlaze
  • 61
0 votes
0 answers
11 views

Conjecture on the prime factorisation of the $\operatorname{lcm}(1,\dots,k) \pm 1$, $k \geq 2$

Bruno B
  • 1
1 vote
1 answer
28 views

Examples of functions with linearity that are not polynomials or derivatives?

Ethan Bolker
  • 82.3k
3 votes
0 answers
26 views

Regular pentagon and the 42° angle

Feripinho
  • 45
1 vote
0 answers
14 views

Question refering to the rational form of a matrix.

user425181
  • 1,119
0 votes
1 answer
19 views

Are there free modules over Non-Principal Ideal Domains

Alex Kruckman
  • 64.2k
0 votes
0 answers
14 views

Probability of random value in interval

Orm
  • 89
0 votes
1 answer
127 views

Compute Angle X! From a Japanese magazine.

Goku
  • 323
1 vote
0 answers
6 views

A map of degree $d$ to $\mathbb{P}^1$ admits infinitely many points of degree $d$

ponchan
  • 2,354
3 votes
0 answers
99 views
+150

How to get roots with galley division?

Rusurano
  • 62
1 vote
0 answers
26 views

Characterize all primes p such that 15 is a square modulo p

Diego Vera
  • 41
3 votes
0 answers
92 views

How to determine at which point a function with even and odd exponents is symmetrical, algebraically?

ILikeMathematics
  • 113
1 vote
0 answers
11 views

Commutator with x vs commutator with smooth function

felipeh
  • 3,294
0 votes
0 answers
25 views

How to show equality of these ratios?

spectre42
  • 17
0 votes
1 answer
9 views

Semidefiniteness using Leading Principal Minors

P. Lawrence
  • 3,215
0 votes
1 answer
11 views

When is singleton bound better than hammming bound for a binary code

kodlu
  • 7,082
0 votes
0 answers
9 views

How do you Taylor expand a function of the form $f(x)=\sum_{n=0}^{g(x)}h(x,n)$ for small values of $x$, where $g$ and $h$ are given?

johnna
  • 1
0 votes
0 answers
22 views

Explicit Example of Matlis Duality

AHappyMathematician
  • 530
0 votes
0 answers
3 views

Fisher information reparametrization formula in non-bijective cases

metricspace
  • 831
1 vote
0 answers
18 views
+50

Is there a singular quotient module of a nonessential extension with the top module flat?

rschwieb
  • 144k
0 votes
0 answers
15 views

Coordinate becomes negative after matrix multiplication with only positive values?

ILikeMathematics
  • 113
0 votes
0 answers
19 views

Derivation Holder condition?

Grandes Jorasses
  • 710
-1 votes
0 answers
13 views

Determinant of differential operator

ADE
  • 1
0 votes
0 answers
15 views

Newton's method for piecewise function

Hitman
  • 523
0 votes
0 answers
12 views

Understanding two surfaces in cylindrical coordinates

Ted Shifrin
  • 103k
0 votes
0 answers
5 views

Construct conditional expectation for $\mathbb C^n$-valued random variables

Akira
  • 11.9k
0 votes
0 answers
13 views

What is the limiting distribution of factors of natural numbers?

Galen
  • 1,458
-1 votes
0 answers
11 views

Two factor groups are isomorphic-II

KON3
  • 3,919
0 votes
1 answer
13 views

How can resolution be applied to prove this statement is satisfiable

Jean Marie
  • 67.2k
0 votes
0 answers
12 views

Question about ordering a set with an order relation

luna
  • 33
1 vote
0 answers
37 views
+50

A question about holomorphic convexity in several complex variables.

Ted Shifrin
  • 103k
0 votes
0 answers
10 views

Graph sets, prove and disprove statements

bittscoterie
  • 17
0 votes
0 answers
3 views

inclusion of von Neumann algebras with expectation

mathbeginner
  • 1,393
0 votes
0 answers
6 views

Differential invariants and symmetries

Mostafa
  • 1
0 votes
0 answers
10 views

Is there a continuous open surjective map from the 2-sphere to the 2-torus?

ccriscitiello
  • 336
1 vote
0 answers
27 views

Uniqueness of the interpolation function $B_0^{1-s} B_1^s$ appearing in the Hadamard 3-lines theorem/Lindelof theorem

D.R.
  • 6,031
2 votes
0 answers
51 views

Signed permutations and $ SO(n) $

Ian Gershon Teixeira
  • 4,178
0 votes
0 answers
7 views

The difference operators D+,D0 both approximate ∂⁄∂x but they have different norms. Explain why this is not contradiction?

mughal
  • 1
0 votes
0 answers
11 views

Optimal weights in a linear prediction

Cm7F7Bb
  • 16.3k
0 votes
0 answers
18 views

Tangent Circles, and Two Parallel Lines

KReiser
  • 52.9k
2 votes
1 answer
25 views

Is this a second-countable space?

Adayah
  • 10.1k
0 votes
0 answers
13 views

If two matrices have the same diagonal entries in any basis basis, are they the same?

EducationalFerret
  • 73
0 votes
0 answers
11 views

change of probability measure?

Jayboy
  • 429
-3 votes
1 answer
22 views

Explain SAT solution

Misha Lavrov
  • 118k
0 votes
0 answers
5 views

completion for ideals with mild finiteness condition

fyx1123581347
  • 255
0 votes
0 answers
10 views

Induced Map on Spectra by Integral Ring Homomorphism

permutation_matrix
  • 652
0 votes
0 answers
7 views

A question about the Kodaira dimension for R-divisors

hal
  • 13
1 vote
0 answers
16 views

Is there a surjective $C^{\omega}$ map from the 2-sphere to the 2-torus?

ccriscitiello
  • 336
1 vote
0 answers
17 views

Adjust the vector considering the rotation of camera

Elliot Yu
  • 2,151
1 vote
0 answers
9 views

How to solve a determined system of linear equations with inequality constraints?

llorente
  • 13
0 votes
0 answers
12 views

Prove from the definition of convergence that the series converges and find its limit

Ajam320
  • 1
6 votes
0 answers
76 views
+400

Smallest constant $C$ to bound $\mathbb{E}[\tfrac{1}{\overline{X}_n + 1}] \leq C~\tfrac{1}{\mathbb{E}[X] + 1}$?

Drew Brady
  • 2,137
0 votes
1 answer
20 views

Complete bell polynomial coefficients

Antonio Bernardo
  • 17
1 vote
0 answers
10 views

Self-similar solutions for a particular parabolic system

Dal
  • 7,786
0 votes
0 answers
17 views

Convexity (or concavity) of min-entropy

Jane
  • 91
0 votes
1 answer
42 views

Is every finite independent set of $V^*$ a dual set when $\dim V=\infty$?

Asaf Shachar
  • 23.8k
4 votes
1 answer
30 views

What's the lower bound for a string of characters to contain all pairs of n different letters?

Parcly Taxel
  • 94.9k
3 votes
1 answer
102 views

How to multiply points on elliptic curve?

kelalaka
  • 1,510
0 votes
0 answers
10 views

Extension theorem in $\mathbb{C}^n$

user823011
  • 1,115
0 votes
1 answer
45 views

splitting sequence into two

S11n
  • 590
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