Mathematics Stack Exchange

0

votes

1

answer

13

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Probability of one alternatively numbered die rolling higher than another differently numbered die?

probability dice

answered 1 min ago Graham Kemp 89.3k

0

votes

0

answers

3

views

velocity gradient in cylindrical coordinate.

vectors jacobian cylindrical-coordinates

asked 2 mins ago 백주상 124

0

votes

0

answers

4

views

Mandelbrot set and its border

fractals

asked 3 mins ago Daruis soli 1

0

votes

1

answer

17

views

$f(x)\in \mathbb{R}$, $x\in D\cap\mathbb{R}$, implies $\overline{f(x)}= f(\overline{x})$, $x\in D$?

complex-analysis analysis complex-numbers

modified 4 mins ago user549397 2,000

0

votes

0

answers

12

views

prove that $ 2 \arctan({\csc \arctan x - \tan \text{arccot }x}) = \arctan x $

algebra-precalculus proof-verification trigonometry inverse

modified 6 mins ago John Wayland Bales 15.6k

0

votes

0

answers

18

views

Find the coefficient of the power series $[x^3](1-x)^{-1}(1-2x)^6$

combinatorics group-theory summation set-theory

modified 6 mins ago Mark Dodds 244

0

votes

1

answer

18

views

find limit of a multivariable function

calculus limits analysis multivariable-calculus functions

modified 6 mins ago user549397 2,000

0

votes

0

answers

6

views

The defining polynomials of complex abelian varieties

algebraic-geometry complex-geometry

modified 7 mins ago user549397 2,000

1

vote

2

answers

23

views

What is the formalism that allows Random Variables to be treated algebraically like real or complex numbers?

probability probability-theory measure-theory random-variables

modified 10 mins ago K.Power 3,774

3

votes

1

answer

61

views

Differentiability of $G_k(w)$

complex-analysis

modified 12 mins ago user549397 2,000

0

votes

0

answers

6

views

best points for regression on cylinder

regression multivariate-polynomial

asked 19 mins ago Toby Kelsey 6

0

votes

1

answer

5

views

Characterization of interior point of convex set using normal cones

convex-analysis

answered 23 mins ago VHarisop 1,368

0

votes

1

answer

17

views

$\lim \limits_{x \to \infty}({\sqrt{x^2-6x+8}-x})$

limits

answered 23 mins ago qbert 22.5k

1

vote

2

answers

14

views

Probability of stacked medication working

probability

modified 23 mins ago Lex_i 130

1

vote

0

answers

29

views

Rudin 6.10 but with countable discontinuities

riemann-integration

modified 31 mins ago Jamie Bellend 6

0

votes

2

answers

15

views

convergence in distribution implies a.s and probability convergence

probability-theory weak-convergence probability-limit-theorems

modified 32 mins ago Kavi Rama Murthy 84.7k

0

votes

1

answer

30

views

Parametrize the surface

differential-geometry surfaces curves

answered 33 mins ago John Wayland Bales 15.6k

1

vote

0

answers

7

views

1st Yr Statistics Question: Create an approximate $\alpha$ level test of $H_0 : p_1 = p_2$

probability statistics binomial-distribution hypothesis-testing

asked 33 mins ago HJ_beginner 977

0

votes

0

answers

61

views

Plotting points of the form $(-p \mod(n),0)$ and $(p,0)$

calculus prime-numbers modular-arithmetic graphing-functions

modified 34 mins ago Ultradark 487

1

vote

0

answers

10

views

Householder matrices that make $H_n \cdots H_1 A = \begin{bmatrix} L \\ O \end{bmatrix}$

linear-algebra numerical-linear-algebra

asked 35 mins ago Moreblue 1,046

1

vote

1

answer

17

views

How does Legendre symbol formula $(-1)^{{p-1\over 2}{q-1\over 2}}$, actually show the correct value?

legendre-symbol

answered 38 mins ago J. W. Tanner 7,077

0

votes

0

answers

9

views

Modeling IP Problem

mathematical-modeling operations-research

asked 39 mins ago user569748 52

0

votes

1

answer

11

views

Boundedness of an entire function using a limiting condition

complex-analysis analysis asymptotics

answered 42 mins ago Kavi Rama Murthy 84.7k

0

votes

1

answer

14

views

Proof using Young’s Inequality and Triangle Inequality

calculus analysis multivariable-calculus

answered 46 mins ago Kavi Rama Murthy 84.7k

-3

votes

0

answers

12

views

A full detailed proof that this partition of the rationals is the square root of 2 and I need it fast-deadline approaches on a publication!

real-analysis real-numbers

asked 48 mins ago Mathemagician1234 14.2k

0

votes

4

answers

32

views

Derivative of $f(x)=\int_{x}^{\sqrt {x^2+1}} \sin (t^2) dt$

real-analysis calculus derivatives

modified 52 mins ago hamam_Abdallah 38.2k

0

votes

0

answers

7

views

Supremum of a random variable over compact set

stochastic-processes random-variables compactness supremum-and-infimum uniform-continuity

modified 53 mins ago user144410 1,041

3

votes

2

answers

23

views

Characterization of weak compactness in a Banach space

functional-analysis compactness weak-topology

answered 1 hour ago Aweygan 15.1k

1

vote

0

answers

7

views

Harmonic Analysis on a Finitely-Generated Matrix Group

matrices harmonic-analysis haar-measure

modified 1 hour ago MCS 1,001

0

votes

1

answer

26

views

$Y = \frac{X_1 X_2}{X_3}$ where $X_i$ is a uniform random variable

probability uniform-distribution variance expected-value

modified 1 hour ago Luca Citi 1,029

0

votes

0

answers

5

views

Expectation of infimum of records

probability probability-theory

asked 1 hour ago Suiz96 278

0

votes

1

answer

11

views

Markov property definition, for (continuous) markov processes

definition markov-process

answered 1 hour ago Feng Shao 313

0

votes

0

answers

12

views

The Fourier Transform of a periodic function

fourier-transform periodic-functions

modified 1 hour ago Bernstein 145

1

vote

1

answer

11

views

Interpretation Weak Law of Large Numbers as Corollary of a convergence theorem in Hilbertspaces

probability law-of-large-numbers

answered 1 hour ago Kavi Rama Murthy 84.7k

19

votes

1

answer

621

views

The equation with binomial coefficient $\binom{n-m}{k+m}=\binom{n+m}{k-m}$

combinatorics binomial-coefficients integers

answered 1 hour ago Vahan 109

-1

votes

0

answers

8

views

optimization with orthogonality constraints

optimization manifolds nonlinear-optimization

asked 1 hour ago user547654 6

1

vote

1

answer

20

views

The spectral decomposition of skew symmetric matrix

linear-algebra spectral-theory matrix-decomposition symmetric-matrices

answered 1 hour ago user10354138 9,808

2

votes

1

answer

51

views

When can I cover all the unique items?

stochastic-processes

modified 1 hour ago DinosaurEgg 660

2

votes

2

answers

32

views

coprime ideals in a ring

abstract-algebra ring-theory commutative-algebra ideals noncommutative-algebra

answered 1 hour ago Antonios-Alexandros Robotis 11.1k

0

votes

1

answer

18

views

closed-form solution of a system of nonlinear trigonometric equations converting Euler angles to spherical

trigonometry closed-form rotations nonlinear-system symbolic-computation

modified 1 hour ago G Cab 20.8k

1

vote

1

answer

25

views

Rigorous construction of partition induced by minimal covering transformation

general-topology analysis metric-spaces dynamical-systems

modified 1 hour ago K.Power 3,774

1

vote

0

answers

32

views

About the construction of the restriction of a Vector Bundle in John M. Lee's book

smooth-manifolds vector-bundles

modified 1 hour ago Zero 2,161

0

votes

1

answer

5

views

Corollary of Projection onto a closed convex set and geometric interpretation

hilbert-spaces inner-product-space geometric-interpretation

answered 1 hour ago Kavi Rama Murthy 84.7k

0

votes

1

answer

26

views

Properties of the probability generating function

probability generating-functions

modified 1 hour ago 2569cfa 46

3

votes

1

answer

33

views

Representation theory of SO(p,q)

group-theory representation-theory lie-groups

answered 1 hour ago Moishe Kohan 50.3k

1

vote

0

answers

15

views

Under Poincaré-Bendixson hypothesis can a $\omega(p)$-limit set be like this picture?

ordinary-differential-equations dynamical-systems

modified 1 hour ago math.h 976

3

votes

2

answers

38

views

If $Y \sim \operatorname{Gamma}(a+1, 1), U_0 \sim \operatorname{Unif}(0, 1), U = U_0^\frac1a$, why $YU \sim \operatorname{Gamma} (a, 1)$?

statistics probability-distributions

modified 1 hour ago Severin Pappadeux 153

0

votes

0

answers

20

views

a differential equation with matrices

matrices ordinary-differential-equations

modified 1 hour ago J. W. Tanner 7,077

1

vote

2

answers

20

views

Existence of left or right pseudoinverse

matrix-rank pseudoinverse

modified 1 hour ago dantopa 6,832

-1

votes

0

answers

17

views

Radius of a Cylinder ($r$) and Radius of a Sphere ($R$)

spheres ratio

modified 1 hour ago Yasuo God 1

0

votes

0

answers

7

views

Iwasawa Decomposition of $Gsp_n$

lie-algebras matrix-decomposition automorphic-forms

asked 1 hour ago Alahoi 21

3

votes

1

answer

38

views

Definition of a locally lifted measure

general-topology measure-theory definition dynamical-systems

modified 1 hour ago K.Power 3,774

2

votes

0

answers

19

views

Identity in a composition algebra

noncommutative-algebra algebras division-algebras nonassociative-algebras

modified 1 hour ago Leonardo Vannini 1,627

0

votes

2

answers

20

views

Bases for spaces of solutions

linear-algebra

answered 1 hour ago Acccumulation 7,586

0

votes

1

answer

19

views

Relationship of matrices with geometry

linear-algebra geometry

answered 1 hour ago coreyman317 1,518

0

votes

0

answers

21

views

Stokes' Theorem: Integral limits

vector-analysis stokes-theorem

modified 2 hours ago J. W. Tanner 7,077

2

votes

1

answer

61

views

Prove that $NP = NQ$.

geometry euclidean-geometry

answered 2 hours ago dan_fulea 7,638

0

votes

1

answer

15

views

Explanation of coefficient when evaluating contour around a branch for fractional version of Cauchy's Integral Formula

complex-analysis contour-integration line-integrals cauchy-integral-formula fractional-calculus

answered 2 hours ago user10354138 9,808

1

vote

0

answers

41

views

Question about big $O$ notation

sequences-and-series asymptotics computer-science

modified 2 hours ago Paul Frost 14k

0

votes

1

answer

13

views

Statistical hypothesis testing - Two tailed using p-values

statistics

answered 2 hours ago Henry 103k

1

vote

1

answer

21

views

Quadratic Variation and Brownian Motion

stochastic-processes stochastic-calculus brownian-motion stochastic-integrals stochastic-analysis

answered 2 hours ago Eugene Sirkiza 16

1

vote

1

answer

17

views

Finding every Householder reflection that converts $x$ to $y$, which are unit vectors.

linear-algebra

answered 2 hours ago user10354138 9,808

0

votes

0

answers

22

views

Denoting sets (permutations,tuples?),

elementary-set-theory permutations set-theory order-theory alternative-set-theories

asked 2 hours ago Curious George 1

0

votes

0

answers

5

views

For entourage $D\in \mathcal{U}$, is there $x_n\in X$ with $\operatorname{Fix}(f)=\bigcup_{n\in\mathbb{N}}D[x_n]\cap\operatorname{Fix}(f)$?

dynamical-systems uniform-spaces fixedpoints

modified 2 hours ago Bernard 126k

0

votes

1

answer

42

views

Linear continuum of $I\times I $ under subspace topology of $\mathbb{R}^2$ with dictionary topology on it, where $I=[a,b]$.

general-topology connectedness order-topology

modified 2 hours ago Henno Brandsma 120k

0

votes

0

answers

18

views

Upper bound of infinity norm of stochastic matrix

linear-algebra matrix-norms

asked 2 hours ago Eris 1

0

votes

0

answers

29

views

Let $E$ is ellipsoid in $\mathbb{R}^n$.

geometry conic-sections

modified 2 hours ago KReiser 10.5k

1

vote

1

answer

15

views

Fiberwise isomorphic condition open or closed?

algebraic-geometry

answered 2 hours ago KReiser 10.5k

0

votes

2

answers

11

views

Seed solutions to a diophantine equation and Reversibility of the Conway's topograph method

elementary-number-theory

answered 2 hours ago Will Jagy 105k

3

votes

0

answers

42

views

Expectation of Gaussian r.v. conditioned on positive r.v.s with positive covariances is positive

probability probability-theory probability-distributions normal-distribution conditional-probability

modified 2 hours ago Oxonon 51

2

votes

1

answer

26

views

Finding a knotted cycle in 3D $K_7$

knot-theory

answered 2 hours ago Kyle Miller 10.5k

0

votes

0

answers

12

views

Local invertibility of general nonlinear maps and the existence of a nonlinear map.

nonlinear-analysis

modified 3 hours ago Bernard 126k

0

votes

1

answer

12

views

Is the proportionality characteristic of this function being carried on?

abstract-algebra sequences-and-series graphing-functions

modified 3 hours ago dantopa 6,832

2

votes

1

answer

14

views

Gaussians and Young's inequality for convolutions

functional-analysis inequality harmonic-analysis

answered 3 hours ago Virtuoz 1,173

2

votes

0

answers

24

views

Proof that boundary value problem has solution

functional-analysis boundary-value-problem

modified 3 hours ago avs 4,906

1

vote

0

answers

12

views

Bounded aperiodic orbits in the Burning Ship.

dynamical-systems fractals

asked 3 hours ago Claude 2,630

0

votes

0

answers

21

views

Rationalizing denominator with any number of radicals

algebra-precalculus radicals

asked 3 hours ago Cadyn Bombaci 1

0

votes

0

answers

20

views

Is it possible for two recursive sequences to have the same characteristic equations

recurrence-relations

modified 3 hours ago lulu 44.5k

4

votes

1

answer

38

views

+50

What is a language “expressible” in second/first-order logic?

logic first-order-logic formal-languages np-complete second-order-logic

answered 3 hours ago Andreas Blass 51.2k

0

votes

3

answers

30

views

Why is it possible to calculate multivariable limits using polar coordinates?

real-analysis calculus

modified 3 hours ago cmk 405

4

votes

1

answer

36

views

+50

Existence of the $\Omega$ set in “Guaranteed Minimum-Rank Solutions of Linear Matrix Equations via Nuclear Norm Minimization”

real-analysis linear-algebra matrices

modified 3 hours ago Shogun 2,829

2

votes

0

answers

19

views

Dual norm to linear combination of two norms

real-analysis functional-analysis dual-spaces

modified 3 hours ago Lionville 371

2

votes

0

answers

13

views

Understanding projection of vector field in homgeneous spaces

differential-geometry lie-groups homogeneous-spaces

asked 3 hours ago christmas_light 99

0

votes

0

answers

7

views

Topology on space of full signatures in rough path theory

tensor-products rough-path-theory p-variation

asked 3 hours ago zhy 1

5

votes

1

answer

83

views

+100

If $S_n$ is Binomial $(n,p)$ then $\mathbb P(S_n=k)\approx \frac{(np)^k}{k!}e^{-np}$.

probability

modified 3 hours ago W-t-P 2,359

1

vote

0

answers

18

views

Generators of localization of an order with prescribed norm

number-theory ring-theory commutative-algebra algebraic-number-theory localization

modified 4 hours ago Laarz 121

0

votes

0

answers

10

views

Generalize bivariate conditional PDF to n-variate conditional PDF

statistics

asked 4 hours ago Tyler Collins 16

1

vote

0

answers

15

views

Cyclic extension and primes that totally, tamely ramify

number-theory algebraic-number-theory class-field-theory

asked 4 hours ago mat6676 11

0

votes

0

answers

9

views

Existence of transverse null vector bundle

geometry differential-geometry semi-riemannian-geometry

modified 4 hours ago Sandesh Jr 121

11

votes

1

answer

5k

views

If $H$ is a proper subgroup of a $p$-group $G$, then $H$ is proper in $N_G(H)$.

abstract-algebra group-theory finite-groups p-groups

modified 4 hours ago Mathematical Mushroom 514

2

votes

0

answers

24

views

How big are the exponential moments of a truncated normal distribution?

probability normal-distribution moment-generating-functions distribution-tails

modified 4 hours ago Bernard 126k

5

votes

8

answers

3k

views

Cauchy-Schwarz inequality proof (but not the usual one)

inner-product-space

modified 4 hours ago TeicDaun 23

-3

votes

0

answers

19

views

If $x∊S_n$ normalizes but does not centralize a subgroup of prime order $P$, show that $x$ fixes at most one point in each orbit of P$.

group-theory finite-groups

modified 4 hours ago Bernard 126k

0

votes

0

answers

5

views

Maximal monotone functional

functional-analysis sobolev-spaces

modified 4 hours ago Mono 12

0

votes

0

answers

18

views

Proof of Cartan-Hadamard's thoerem

proof-explanation riemannian-geometry

modified 4 hours ago George 960

0

votes

0

answers

27

views

Quotient manifold

lie-groups smooth-manifolds group-actions quotient-spaces

modified 4 hours ago Zinebzinouba 1

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