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60 Questions

Views Newest Activity Votes

votes

answer

views

Example of a strongly dense set which is not ultrastrongly dense.

Nov 19 at 9:10 EuYu 34.3k

votes

answer

150

views

Fundamental theorem of invariant theory for $SO(m,n)$.

group-theory reference-request lie-groups invariant-theory

Oct 26 at 22:36 vujazzman 1,146

votes

answers

views

Product-like metric on a pseudo-Riemmanian manifold foliated by Lie group orbits

differential-geometry lie-groups riemannian-geometry

Jul 30 '16 at 14:57 EuYu 34.3k

votes

answer

views

Symmetric decompositions of $SU(2)$ representations.

representation-theory lie-groups tensor-products

Apr 28 '18 at 12:34 Socob 143

votes

answer

750

views

Elliptic functions as inverses of Elliptic integrals

complex-analysis special-functions elliptic-functions

Dec 22 '15 at 18:22 Lukas Geyer 14.7k

votes

answer

395

views

Congruent quadrilaterals in a tri-colored $72$-gon

combinatorics geometry ramsey-theory

Sep 2 '15 at 19:19 user149792 4,638

votes

answer

411

views

Axiomatization of a Topology using the Boundary

general-topology

Aug 29 at 22:17 Mike Krebs 1

votes

answer

156

views

Cardinality of a Grothendieck Universe

set-theory

Jun 2 '15 at 16:04 Asaf Karagila♦ 323k

votes

answers

263

views

Equivalence between different forms of the Axiom of Infinity

set-theory

May 6 '15 at 17:23 Asaf Karagila♦ 323k

votes

answer

226

views

Automorphism group of a lattice's Voronoi cell

group-theory geometry computational-geometry

Jan 22 '15 at 22:46 Community♦ 1

votes

answers

225

views

Calculus of Variations with discontinuous Lagrangian

calculus-of-variations

Apr 22 '16 at 15:14 dv_bn 167

votes

answer

262

views

Uniform perturbative solutions to the Mathieu equation

ordinary-differential-equations special-functions perturbation-theory

Sep 16 '17 at 20:11 Cyclone 1,503

votes

answers

285

views

Characterization of Convex Polygons

geometry convex-analysis euclidean-geometry

May 19 '14 at 11:21 Erel Segal-Halevi 8,605

votes

answer

482

views

Integral approximation of Fourier series.

real-analysis fourier-analysis

Oct 1 '13 at 1:14 timur 12.7k

votes

answer

590

views

Showing that a homomorphism between groups of units is surjective. [duplicate]

group-theory elementary-number-theory

Sep 8 '13 at 2:25 RghtHndSd 6,713

votes

answers

views

Combinatorial proof of a Stirling number identity.

combinatorics stirling-numbers

Jul 10 '13 at 11:14 Community♦ 1

votes

answers

views

Proof of an obvious fact about convex polygons.

geometry convex-analysis

Dec 29 '12 at 0:34 Ed Pegg 16.6k

votes

answer

views

Star-Shaped polygons

geometry graph-theory computational-geometry

Dec 2 '12 at 8:09 A.Schulz 3,490

votes

answer

325

views

Assigning alternate crossings to closed curves

graph-theory plane-curves knot-theory

Oct 8 '12 at 4:52 Gerry Myerson 156k

votes

answers

views

Similarity involving Miquel's Theorem

geometry euclidean-geometry triangles

Jan 10 '13 at 16:31 Blue 54.7k

vote

answer

457

views

Length bisection from circular arc

geometry trigonometry euclidean-geometry circles

Sep 16 '12 at 5:48 André Nicolas 463k

votes

answers

500

views

Intuition in permutations for Laplace Determinant Expansion

linear-algebra intuition determinant

Aug 13 '12 at 4:10 EuYu 34.3k

votes

answers

747

views

A boundary version of Cauchy's Integral Theorem

complex-analysis algebraic-topology

Aug 3 '12 at 19:58 EuYu 34.3k

votes

answers

views

Graph theory exercise on finding a subgraph with minimum degree.

graph-theory

Jul 15 '12 at 1:01 EuYu 34.3k

votes

answer

303

views

Does the specification of a general sequence require the Axiom of Choice?

real-analysis analysis set-theory axiom-of-choice

Jul 1 '12 at 0:14 Community♦ 1

votes

answer

views

Image of a boundary under a continuous function.

complex-analysis analysis

Jun 25 '12 at 18:04 Community♦ 1

votes

answers

942

views

Algebraic proof of a binomial sum identity.

combinatorics binomial-coefficients

Jun 12 '12 at 4:04 Brian M. Scott 473k

votes

answer

views

Sum of every $k$th binomial coefficient.

combinatorics complex-numbers binomial-coefficients

May 7 '12 at 18:20 N. S. 112k

votes

answers

views

Conditions of Cauchy's Mean Value Theorem

calculus real-analysis

May 3 '12 at 20:09 David Mitra 65.8k

votes

answers

views

Strengthening a result on the growth of continuously differentiable functions.

calculus real-analysis derivatives

Apr 28 '12 at 8:12 Siminore 31.5k

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60 Questions

Example of a strongly dense set which is not ultrastrongly dense.

Fundamental theorem of invariant theory for $SO(m,n)$.

Product-like metric on a pseudo-Riemmanian manifold foliated by Lie group orbits

Symmetric decompositions of $SU(2)$ representations.

Elliptic functions as inverses of Elliptic integrals

Congruent quadrilaterals in a tri-colored $72$-gon

Axiomatization of a Topology using the Boundary

Cardinality of a Grothendieck Universe

Equivalence between different forms of the Axiom of Infinity

Automorphism group of a lattice's Voronoi cell

Calculus of Variations with discontinuous Lagrangian

Uniform perturbative solutions to the Mathieu equation

Characterization of Convex Polygons

Integral approximation of Fourier series.

Showing that a homomorphism between groups of units is surjective. [duplicate]

Combinatorial proof of a Stirling number identity.

Proof of an obvious fact about convex polygons.

Star-Shaped polygons

Assigning alternate crossings to closed curves

Similarity involving Miquel's Theorem

Length bisection from circular arc

Intuition in permutations for Laplace Determinant Expansion

A boundary version of Cauchy's Integral Theorem

Graph theory exercise on finding a subgraph with minimum degree.

Does the specification of a general sequence require the Axiom of Choice?

Image of a boundary under a continuous function.

Algebraic proof of a binomial sum identity.

Sum of every $k$th binomial coefficient.

Conditions of Cauchy's Mean Value Theorem

Strengthening a result on the growth of continuously differentiable functions.