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Interesting 44 Bountied Hot Week Month
2 votes
1 answer
59 views

Show that a given field is a cubic number field

Viktor Vaughn
  • 18.4k
1 vote
0 answers
16 views

For calculating chance to hit, does imprecision of the shooter matter if it's less than the uncertainty of position of the target?

cthon
  • 11
0 votes
0 answers
11 views

Prove that balls are not convex in C(\mathbb{R})

Inors
  • 15
0 votes
0 answers
4 views

In the proof of Neural Tangent Kernel stays constant in infinite width limit, why the norm of the dual mapping operator equals operator norm of kernel

Shuofeng Zhang
  • 1
0 votes
1 answer
1k views

F-Testing ; constant returns to scale

CommunityBot
  • 1
0 votes
0 answers
12 views

Writing a 2 by 2 matrix as a product of elementary matrices

Rócherz
  • 3,746
3 votes
0 answers
67 views

A didactic proof of the Pythagorean Theorem?

Hulkster
  • 1,832
3 votes
1 answer
106 views

Question on the proof that finitely generated subgroups have finitely many subgroups of given index

No pie
  • 33
1 vote
0 answers
18 views

prove that a simple connected graph having exactly two vertices that are not cut-vertices is a path.

eman yalpsid
  • 11
-1 votes
0 answers
14 views

directions of steepest ascent and descent

Deeponjit Bose
  • 178
0 votes
0 answers
15 views

Lagrange Interpolating Polynomials with custom way to add Local Maximum/Minimum.

RobPratt
  • 39.6k
0 votes
0 answers
21 views

Large parentheses of 4 elements

Jordan
  • 1
1 vote
1 answer
18 views

How to find probability of the difference between a maximum and minimum of a set of random variables?

kevinkayaks
  • 1,234
0 votes
0 answers
12 views

$H_0(X,A)=0$ iff $A$ intersects every path component of $X$.

Koro
  • 10.1k
1 vote
0 answers
30 views

Tensor product and direct integral

Martin Argerami
  • 193k
3 votes
1 answer
236 views

Every type II$_1$ von Neumann algebra has a unique faithful trace

Martin Argerami
  • 193k
0 votes
1 answer
42 views

Boundary Orientation

RHyp
  • 63
3 votes
1 answer
61 views

Range of trace of projections in II$_1$ factor

Martin Argerami
  • 193k
1 vote
0 answers
9 views

How to establish existence of an optimal control with infinite horizon?

pawlyb
  • 11
0 votes
0 answers
90 views

About the definition of pullback (in diff. geom.)

PSB
  • 1
0 votes
1 answer
13 views

Angle problem between points on a unit sphere

kevinkayaks
  • 1,234
1 vote
1 answer
18 views

Irreducible representations of the symmetric group in GAP

ahulpke
  • 16.8k
0 votes
0 answers
16 views

Equivalent definitions of Baire spaces

José Victor Gomes
  • 259
1 vote
0 answers
63 views

Tricky Laplace transform problem

Yaroslav Bulatov
  • 5,045
0 votes
0 answers
15 views

Finding Out the Centroid of a Polygon

stats_noob
  • 2,390
0 votes
0 answers
18 views

GTM 52 Exercise 4.7

Born to be proud
  • 2,484
0 votes
0 answers
29 views

Evaluating LaTeX input

Boris0035
  • 1
1 vote
0 answers
30 views

Prove that $I + A^{T}A$ is invertible

Aphamino
  • 11
0 votes
1 answer
1k views

Prove equivalence to the Euclidean Parallel Postulate

CommunityBot
  • 1
1 vote
1 answer
20 views

How to calculate the convolution product of $(H_0 e^{\alpha t}) * (H_0 e^{-\alpha t})$?

kevinkayaks
  • 1,234
0 votes
1 answer
34 views

When is the map from $\mathbb{Z}_n \rightarrow \mathbb{T}$ injective?

zettawatt
  • 45
0 votes
0 answers
11 views

Decomposition of finite algebras over complete local rings

Bromelain
  • 339
6 votes
3 answers
909 views

Induced Orientation of Boundary of Manifold

Deane
  • 4,295
0 votes
0 answers
10 views

Calculating that a bivariate random variable belongs to a curve

Mangostino
  • 469
0 votes
0 answers
39 views

Does every pointed polyhedral cone in $\mathbb{R}^n$ generated by its $n+1$ extreme rays contain two extreme ray vectors whose sum is in the interior?

Veljko Toljic
  • 105
7 votes
0 answers
54 views

Tight bounds for $L_1$ norm of Hermite polynomial: $\int_{-\infty}^\infty |\operatorname{He}_n(x)| \frac{1}{\sqrt{2 \pi}} \exp(-\frac{x^2}{2} ) dx$

metamorphy
  • 36.4k
1 vote
0 answers
14 views

Why use LF to define type theories?

user125234
  • 189
0 votes
0 answers
13 views

Find the radius of the circumcircle of triangle $ABC$

peta arantes
  • 4,929
0 votes
0 answers
10 views

Show that this optimization problem has a closed form solution or at least it's convex

Didier
  • 41
1 vote
2 answers
44 views

Solve two-variable recursion using generating function

JBL
  • 407
-1 votes
0 answers
27 views

Integral between $0$ and $\pi/2$ of $\sin(x)/\sqrt{1+2\sin(x)}$

Gary
  • 25.6k
1 vote
0 answers
14 views

Is this stronger version of the fundamental lemma of the calculus of variations true?

VJ123
  • 310
-1 votes
0 answers
18 views

How feasible would determining whether a single 5-digit prime belongs to this sequence be?

ExperimentalMaths
  • 1
1 vote
1 answer
14 views

Proving that the two characterizations of integrability are equivalent

RRL
  • 87.4k
0 votes
0 answers
8 views

How to parameterize a pyramid with a square base in Mathematica?

Miss Mae
  • 555
0 votes
0 answers
21 views

trying to prove a bounded function to be continues with a give inequality

asdfgh jkl
  • 1
4 votes
1 answer
116 views

Find $P(X=k)$ where $X$ is the random variable that represents the number of draws required to obtain a white ball

Odant Arnast
  • 41
1 vote
0 answers
34 views

Bergman Kernel for $L_p$ space (p $\neq$ 2)

supernova
  • 33
1 vote
1 answer
15 views

Relationship between two partial isometries

Martin Argerami
  • 193k
2 votes
1 answer
31 views

Is there a Lebesgue non-measurable Hamel basis of $\mathbb{R}$ over $\mathbb{Q}$?

Noah Schweber
  • 229k
0 votes
1 answer
21 views

condition coeff $a$. finite differential equation initial order. $y[n]=ay[n-1]+x[n]$

Diego Santos
  • 1,167
0 votes
0 answers
10 views

Optimal blind dodging

causative
  • 243
0 votes
1 answer
17 views

Given 800 people, 200 watch TV show A only, 250 watch B only, and 50 watch both, what is the probability of selecting someone who watches A or B?

hobbs
  • 357
0 votes
0 answers
15 views

Polya's Urn Application, Tossing Paper into a Bin

QuantNU613
  • 1
3 votes
1 answer
177 views

Another definition of a smooth map between manifolds

Paul Frost
  • 67.2k
1 vote
0 answers
35 views

Is chess a combinatorial game?

Jeremy Clarkson
  • 95
-1 votes
0 answers
22 views

If each $f|_{X_j}$ is injective, then $f$ is injective? ($X_j$ are irreducible components) (related to Lemma 15.19 of the Gortz's Algebraic Geometry)

Plantation
  • 1,496
0 votes
0 answers
6 views

The relative interior of a conical hull of a finite set

ElementX
  • 898
0 votes
0 answers
13 views

Integrating the exponential of a fractional order complex polynomial

garserdt216
  • 538
0 votes
0 answers
35 views

What is the name of the Boolean function $f(x_1,...,x_n)=\prod_{k=1}^{n}(1-x_k)$?

Átila Correia
  • 12.8k
2 votes
0 answers
31 views

How to understand the words 'upper' and 'lower' in the concepts 'upper hemi-continuous' and 'lower hemi-continuous'?

Shujun Tan
  • 31
0 votes
0 answers
44 views

Exercise question about quotient vector space?

Seth
  • 2,139
1 vote
0 answers
14 views

Clarification needed for the definition of Pushout,, and Pushout diagram from definition of Pullback and Pullback diagram

Seth
  • 2,139
0 votes
0 answers
20 views

How is this performed with Covariance?

2-D
  • 3
0 votes
0 answers
5 views

What's the projection matrix of the canonical vector (i, j) into ellipse basis (using metric theory)

Benzait Sofiane
  • 11
1 vote
0 answers
8 views

Divergence on the hyperbolic plane vs $3D$ divergence in cylindrical coordinates

user99432
  • 780
1 vote
0 answers
19 views

How to find the $\delta$ calculation for a functional limit

Lex_i
  • 2,016
-1 votes
1 answer
63 views

Is there a convergent series which when taken to any power diverges?

sqrtpapi2001
  • 153
1 vote
0 answers
10 views

Riemann-Liouville Fractional Integral operator in Lp(a,b) : finding operator norm

UnderscorePoY
  • 71
0 votes
0 answers
20 views

Is there a term for a periodic function that has non-discontinuous end behavior?

Jacob Ivanov
  • 5
0 votes
0 answers
20 views

How to define a form of something as a function

Node.JS
  • 1,099
0 votes
0 answers
15 views

Find a matrix that is symmetric and similar to my matrix

Mathisfreedom
  • 149
4 votes
0 answers
27 views

Orders of all the elements in polynomial quotient ring

joriki
  • 227k
1 vote
1 answer
16 views

Epimorphism in simplex category is split

FShrike
  • 22k
0 votes
0 answers
24 views

Image of a filter

Anne Bauval
  • 18.5k
0 votes
1 answer
52 views

Proving intersections with the Archimedean property

FD_bfa
  • 2,804
0 votes
0 answers
16 views

Double integral of $3y$ over an annular sector

James
  • 77
3 votes
0 answers
53 views

How to find the surface area of the spout of a teapot?

Arctic Char
  • 14.6k
1 vote
0 answers
16 views

Transitivity of surreal numbers in their sign expansion

SK19
  • 2,980
1 vote
0 answers
15 views

A question related to the Moving-average processes

André Goulart
  • 127
1 vote
2 answers
370 views

the ways completion of p-adic integers

KCd
  • 37.2k
1 vote
0 answers
22 views

ZF+"there exists an amorphous set" is equiconsistent with ZF

effezeta
  • 185
1 vote
2 answers
2k views

Is the inverse of a unimodular matrix unimodular?

CommunityBot
  • 1
1 vote
0 answers
25 views

Brezis's Proposition 4.21: did the author mean $f \star \rho_n$ rather than $\rho_n \star f$?

Akira
  • 13.6k
1 vote
0 answers
12 views

Algorithm choices for trapezoidal decomposition

picker
  • 21
1 vote
0 answers
17 views

How to determine which non-right angle to use when determining components of a vector

TShiong
  • 1,264
0 votes
1 answer
39 views

If $ f $ is increasing on $ (a, b) $ and for some $ x_0 \in (a, b) $, $ \lim_{x \to x} f(x) = L $, then $ f $ is continuous at $ x_0 $

Ryszard Szwarc
  • 17.2k
2 votes
0 answers
18 views

Suppose $S$ is a multiplicative set of $A$, and interpret $S^{−1}A = \operatorname{colim} \frac1s A$.

Arctic Char
  • 14.6k
0 votes
0 answers
18 views

can partial and total differentials of x cancel in this?

whpowell96
  • 2,355
0 votes
2 answers
38 views

Finding points close to conic surface in R3

TeM
  • 3,728
0 votes
0 answers
17 views

Summation with products of values with different powers

TK99
  • 373
1 vote
1 answer
2k views

Concavity of function implies convex upper contour

CommunityBot
  • 1
0 votes
0 answers
27 views

Prove that $\lim_{n \to \infty} m^{1/q(n)} = 1$

Blue Tomato
  • 348
4 votes
3 answers
165 views

Open and dense set in metric space

Eugene Zhang
  • 16.4k
3 votes
0 answers
373 views

Atlas on the Grassmannian Variety

Arctic Char
  • 14.6k
1 vote
0 answers
10 views

Realization of the Fractional Laplacian Operator in $L^2(\Omega)$.

José
  • 225
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