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For a finite set A of positive reals, prove that the set A + A - A contains at least as many positive as negative elements
Awarded May 25 at 10:49
Are there any fields of academic mathematics whose epistemic status as math is controversial within the academic community?
Awarded May 23 at 18:46
Are there any fields of academic mathematics whose epistemic status as math is controversial within the academic community?
Awarded May 22 at 3:56
Philosophical Question related to Largest Known Primes
Awarded May 21 at 17:26
Why do I need densities in order to integrate on a non-orientable manifold?
Awarded May 20 at 2:42
Clausen's modified Hodge Conjecture
Awarded May 17 at 23:27
Important open problems that have already been reduced to a finite but infeasible amount of computation
Awarded May 17 at 21:26
Do minimal submanifolds minimize area locally?
Awarded May 16 at 22:46
A metric characterization of the real line
Awarded May 16 at 4:40
Moduli space of genus 2 curves
Awarded May 12 at 2:51
Most striking applications of category theory?
Awarded May 10 at 19:34
Open problems in mathematical physics
Awarded May 9 at 12:04
Compactification theorem for differentiable manifolds ?
Awarded May 7 at 17:08
Mathematical applications of quantum field theory
Awarded May 4 at 8:31
$\psi(x)-x$ on average
Awarded May 4 at 6:47
explicit big linearly independent sets
Awarded May 1 at 19:41
Tiling the plane with pairwise non-congruent rational triangles
Awarded Apr 29 at 13:51
Geometric interpretation of filtered rings and modules
Awarded Apr 28 at 3:27
Can cotangent bundles see exotic smooth structures?
Awarded Apr 26 at 17:58
Is there an introduction to probability theory from a structuralist/categorical perspective?
Awarded Apr 24 at 21:41
Are all Galois cohomology groups also étale cohomology groups?
Awarded Apr 24 at 20:06
Commutative subalgebras of M_n
Awarded Apr 23 at 18:16
What are examples of mathematical concepts named after the wrong people? (Stigler's law)
Awarded Apr 21 at 18:25
Decomposing $(\mathbb C^n)^{\otimes m}$ as a representation of $S_n\times S_m$
Awarded Apr 20 at 23:34
Famous examples of "serendipity" in 20th century mathematics
Awarded Apr 20 at 15:15
Real polynomials that go to infinity in all directions: how fast do they grow?
Awarded Apr 19 at 6:48
Famous mathematical quotes
Awarded Apr 18 at 19:41
A holomorphic function sending integers (and only integers) to $\{0,1,2,3\}$
Awarded Apr 17 at 18:27
Can this probability be obtained by a combinatorial/symmetry argument?
Awarded Apr 17 at 18:27
Reference request: proof of Ramanujan's Cos/Cosh Identity
Awarded Apr 16 at 5:09
What is the "serious" name for the topograph (for a quadratic form)
Awarded Apr 15 at 21:37
A "meta-mathematical principle" of MacPherson
Awarded Apr 15 at 4:25
What is the difference between elementary and non-elementary proofs of the Prime Number Theorem?
Awarded Apr 14 at 13:08
What is the difference between elementary and non-elementary proofs of the Prime Number Theorem?
Awarded Apr 13 at 12:56
A finitely generated $\mathbb{Z}$-algebra that is a field has to be finite
Awarded Apr 10 at 11:12
Are measurable automorphism of a locally compact group topological automorphisms?
Awarded Apr 9 at 16:55
What are some examples of ingenious, unexpected constructions?
Awarded Apr 8 at 14:04
What are some examples of ingenious, unexpected constructions?
Awarded Apr 8 at 12:28
What are the current breakthroughs of Geometric Complexity Theory?
Awarded Apr 5 at 14:10
Erdős-Szekeres for first differences
Awarded Apr 5 at 12:05
Atlas-like websites on specific areas of mathematics
Awarded Apr 4 at 22:51
To prove irrationality, why integrate?
Awarded Apr 4 at 13:25
transformation properties of divergence (of a vector field)
Awarded Apr 4 at 5:20
Why should curves be two-dimensional?
Awarded Apr 3 at 9:12
Proof for new deterministic primality test
Awarded Apr 2 at 20:55
Do mathematicians rely on senses other than vision and hearing?
Awarded Apr 1 at 17:09
How did Cole factor $2^{67}-1$ in 1903?
Awarded Apr 1 at 7:36
Diophantine equation with no integer solutions, but with solutions modulo every integer
Awarded Mar 30 at 1:15
Most helpful math resources on the web
Awarded Mar 29 at 19:40
Is the minimal volume a topological invariant?
Awarded Mar 29 at 15:11
Do mathematicians rely on senses other than vision and hearing?
Awarded Mar 29 at 7:10
What are the benefits of writing vector inner products as $\langle u, v\rangle$ as opposed to $u^T v$?
Awarded Mar 29 at 1:47
Can we three-color a tiling of the plane with Smith, Meyers, Kaplan, and Goodman-Strauss's einstein?
Awarded Mar 28 at 13:57
Examples of common false beliefs in mathematics
Awarded Mar 28 at 12:09
The modular arithmetic contradiction trick for Diophantine equations
Awarded Mar 28 at 7:26
"Pick up a homological algebra book and prove all of the theorems yourself" (exercise from Lang's Algebra)
Awarded Mar 27 at 7:46
What does the classifying space of a category classify?
Awarded Mar 26 at 0:28
When is a finite dimensional real or complex Lie Group not a matrix group
Awarded Mar 25 at 19:30
About the definition of Borel and Radon measures
Awarded Mar 24 at 21:12
Why does non-abelian group cohomology exist?
Awarded Mar 24 at 14:57
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