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Awarded 18249 times.

Poincaré duality and Mayer–Vietoris sequence

Awarded 3 hours ago

Harsh Patil

634 bronze badges

Bound on the number of unit vectors with the same pairwise inner products

Awarded yesterday

Ziqian Xie

1634 bronze badges

Invariance of mutual information under injective functions

Awarded yesterday

Paweł Czyż

2511 silver badge6 bronze badges

Extending Tannakian "dictionary" to gerbes

Awarded yesterday

bsbb4

3231 silver badge6 bronze badges

Proving that a function $f(x,y)$, that is unbounded in every direction, is uniformly bounded below by $1$ outside some disc of large enough radius

Awarded yesterday

Ryan Hendricks

7555 silver badges10 bronze badges

Bounds on hitting time of sum of i.i.d. random variables

Awarded 2 days ago

Colin Defant

933 bronze badges

Upper bound on natural ordinal sum

Awarded Jul 16 at 16:07

opfromthestart

735 bronze badges

Closed form for $\sum_{n=0}^\infty \frac1{2^{2^n}}$?

Awarded Jul 16 at 14:12

thatrustam

813 bronze badges

Finite verification for theorems due to Busy Beaver numbers

Awarded Jul 16 at 5:08

Ivan Galakhov

1656 bronze badges

Integral preimages of topologically noetherian, affine schemes

Awarded Jul 15 at 19:17

Johann Gramzow

634 bronze badges

Mathematical explanation for connections on gauge bundles in curved spacetime for spinors

Awarded Jul 15 at 15:23

trying

237 bronze badges

An arrangement of hyperplanes [closed]

Awarded Jul 14 at 22:25

D. S.

1794 bronze badges

Gelfand–Yaglom–Perez Theorem for product space

Awarded Jul 14 at 19:20

efsdfmo12

1135 bronze badges

Intersection pairing on non-compact surface

Awarded Jul 14 at 17:26

Roger

433 bronze badges

Different Hodge numbers arising from different holomorphic structures?

Awarded Jul 13 at 20:12

pleasantpheasant

634 bronze badges

Non-inertial frames of reference in empty space

Awarded Jul 13 at 9:21

Марат Рамазанов

1116 bronze badges

Two isotropic subspaces in a symplectic vector space

Awarded Jul 12 at 19:55

Linda

332 bronze badges

Are finitely generated subgroups of $\text{GL}_n(\mathbb{Q})$ virtually special?

Awarded Jul 12 at 2:34

user2357

1135 bronze badges

Coin toss stochastic question

Awarded Jul 11 at 18:47

Carl

134 bronze badges

Relationship between units of a ring and primitive characters of the ring under addition

Awarded Jul 10 at 20:32

Kofi Amponsah

233 bronze badges

Low dimensional homotopy groups of $\operatorname{Top}(4)$

Awarded Jul 9 at 10:28

Oleksandr Kharchenko

1234 bronze badges

Deriving the "Explicit" formula for inverse of Hilbert/Cauchy matrices

Awarded Jul 9 at 9:04

Yinuo An

1735 bronze badges

Citation hunting: Floer on spectral sequences

Awarded Jul 9 at 8:46

Arye Deutsch

1538 bronze badges

Decomposing the homology of a finite-index subgroup into isotypic components

Awarded Jul 8 at 21:50

Annie

832 bronze badges

Lower bound on volume of $n$-cube intersected with $n$-sphere

Awarded Jul 8 at 17:04

Capybara

435 bronze badges

The location of the zeros of the "new" function $\Psi(s)=\sum _{n=1}^{\infty }{\frac{1}{n!^s}}$

Awarded Jul 6 at 16:06

Roberto Trocchi

1618 bronze badges

What is the formula for $\mathcal P_{n}^{k} (a_{1}, a_{2}, ...)$, defined by Peter Luschny?

Awarded Jul 6 at 9:22

Math123

736 bronze badges

Ensuring the measure condition $\mu(E) = \lambda$ in a lemma: need some clarification regarding the selection of $A$

Awarded Jul 5 at 8:02

abcdmath

456 bronze badges

Convergence in $H^{-2}$ of $L^2$-functions with limit in $L^2$

Awarded Jul 3 at 7:49

PDEprobabilist

1334 bronze badges

Davenport constant $D(S_5)=10$ or $11$?

Awarded Jul 2 at 22:55

Mikel Martinez Puente

855 bronze badges

Why is the Vietoris–Rips complex $\operatorname{VR}(S, \epsilon)$ a subset of the Čech complex $\operatorname{Čech}(S, \epsilon\sqrt{2})$?

Awarded Jul 2 at 21:21

Kindness Chen

616 bronze badges

Signed measures on algebras (fields) and their boundedness properties

Awarded Jul 1 at 13:47

Ennio

234 bronze badges

Is there an infinite subset of $\Bbb{R}$ not homeomorphic to any of its proper subsets?

Awarded Jun 30 at 17:42

K. Makabre

2451 silver badge8 bronze badges

Quotient of the plane by the standard Cremona involution

Awarded Jun 30 at 14:38

Robert B

1334 bronze badges

Sobolev extension problems of $W^1_\infty(\Omega)$

Awarded Jun 29 at 0:41

Javier

615 bronze badges

Monodromic but not equivariant sheaves and Braden's theorem

Awarded Jun 28 at 17:16

Stefan Dawydiak

3831 silver badge9 bronze badges

Number of real forms of a (not semisimple, solvable) Lie algebra

Awarded Jun 28 at 14:47

JRojo

232 bronze badges

Seifert invariants for Brieskorn manifolds $\Sigma(p,q,r)$

Awarded Jun 28 at 14:36

user13121312

333 bronze badges

Proof/Reference to a claim about AC and definable real numbers

Awarded Jun 28 at 2:06

Lave Cave

2431 silver badge4 bronze badges

Embedding of a Banach space in $\ell_\infty(\Gamma)$ with a subspace embedded in a copy of $\ell_\infty$

Awarded Jun 27 at 18:07

Esteban Martínez

2711 silver badge9 bronze badges

Poincaré duality, spin structure and Connes' reconstruction theorem

Awarded Jun 27 at 13:47

eomp

433 bronze badges

Is there a non-perfect field in which polynomials of large degree are reducible?

Awarded Jun 27 at 13:47

Medo

414 bronze badges

Extending normal filters

Awarded Jun 27 at 11:56

Tristan vd Vlugt

1935 bronze badges

Monotonicity of the sum of coefficients of a family of generating functions

Awarded Jun 27 at 0:05

Yulin

234 bronze badges

Cohomology of the complement of a subvariety

Awarded Jun 26 at 21:05

fgh

1537 bronze badges

Relationship between the character group and cotangent bundle

Awarded Jun 26 at 18:35

Cole Comfort

991 silver badge8 bronze badges

Does a "good" homotopy equivalence between pairs imply homotopy equivalence between quotient spaces?

Awarded Jun 26 at 17:06

Ondrej Draganov

2131 silver badge4 bronze badges

Extending diffeomorphisms between surfaces

Awarded Jun 26 at 11:50

LDLSS

234 bronze badges

The canonical identification of the orthogonal symplectic group

Awarded Jun 25 at 21:03

NewUser

133 bronze badges

Equal segmentation of a series of numbers

Awarded Jun 24 at 22:04

RanneR

833 bronze badges

Questions about Lamperti's criteria for stochastic process recurrence

Awarded Jun 24 at 15:10

ZENG

1133 bronze badges

The action of $\operatorname{Gal}(\overline{k}/k)$ on $\pi_1^{\mathrm{ét}}(\mathbb{G}_m)$

Awarded Jun 23 at 16:49

Rudyard

715 bronze badges

Is there a set of point $S \subset \mathbb R^2$ such that $|\{C: C \text{ is unit circle boundary }, |C \cap S| = 10\}| > |S|$

Awarded Jun 22 at 18:57

jackdean

1937 bronze badges

A topological space has the homotopy-type of a CW-complex, then is it locally contractible?

Awarded Jun 22 at 10:10

Lelong Wang

3171 silver badge7 bronze badges

Expectation of maxima of random functions

Awarded Jun 22 at 2:25

Snidd

333 bronze badges

Riemannian submersions and associated fibre bundles

Awarded Jun 21 at 12:53

mathusername

356 bronze badges

Decomposition of an $\text{SL}_n(\mathbb{C})$ representation

Awarded Jun 20 at 21:06

Chase

1816 bronze badges

Structure of a single automorphism of a finite abelian p-group

Awarded Jun 19 at 20:00

Nathan Dunfield

3654 silver badges9 bronze badges

Connection between Wassertein-2 metric and difference in variance

Awarded Jun 19 at 9:10

Daniel Cortild

1236 bronze badges

Maximal eigenvalue of a real symmetric Toeplitz matrix

Awarded Jun 19 at 1:10

Drophet

635 bronze badges

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