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Awarded 19134 times.

Identity using $\varphi(n), d(n)$ and $\sigma(n)$

Awarded 19 hours ago

Mikhail Kurkov

232 bronze badges

Is this semi-direct product residually finite?

Awarded yesterday

ghc1997

1,2193 silver badges11 bronze badges

What is the volume of $\Sigma(2, 3, 13)$ associated with its $\widetilde{\operatorname{SL}(2, \mathbb{R})}$ geometry?

Awarded 2 days ago

John M. Campbell

433 bronze badges

Prove that except for $n=1$, there are more topologies of size $n$ than groups of order $n$

Awarded 2 days ago

Salmon

8110 bronze badges

Does the mean value $\lim_{T\to\infty}\frac{1}{2T}\int_{-T}^Tf(t)\,\mathrm dt$ exist if $f$ is given by a function in $L^1(\mathrm b\mathbb R)$?

Awarded Mar 29 at 3:27

Lorago

1335 bronze badges

Full name (in the sense of forcing) for a partial order

Awarded Mar 29 at 2:07

user573840

412 bronze badges

Complexity of detecting geometric templates in high-dimensional point sets

Awarded Mar 27 at 5:27

aviad s

33 bronze badges

Positive weakly-null sequences and infinite dimensional subspaces

Awarded Mar 26 at 16:26

Alberto Caldera

1286 bronze badges

What is the consistency strength of the only finiteness class is $\mathbf{Fin}$?

Awarded Mar 24 at 15:50

Br1nd4

2131 silver badge5 bronze badges

Basic de Rham cohomology and integral classes

Awarded Mar 21 at 16:32

Branimir Ćaćić

2,6051 gold badge22 silver badges31 bronze badges

Pullback-pushforward under ramified cover of curves

Awarded Mar 20 at 17:40

Tolik

634 bronze badges

Lie group one cocycle coming from a Manin triple induces a Poisson tensor

Awarded Mar 20 at 15:17

Dr. Tony Tony Chopper

1434 bronze badges

Is such a Banach space $X$ isometrically isomorphic to a Hilbert space or not?

Awarded Mar 20 at 11:42

anyon

1911 silver badge7 bronze badges

Are Hurwitz spaces with prescribed ramification always connected?

Awarded Mar 19 at 21:08

juliana coelho

434 bronze badges

Properly transfinitely Euclidean rings of integers

Awarded Mar 19 at 15:42

Noiril

2531 silver badge5 bronze badges

Comprehensive research-level reference on martingale concentration inequalities (discrete time)

Awarded Mar 18 at 20:06

Ravi

633 bronze badges

A claim of Petersen concerning distance functions and Ricci curvature

Awarded Mar 18 at 19:11

schwarzschild child

837 bronze badges

Effective algorithms for the Gauss class number problem, general solvers for the largest $|D|$ given $h_K = n$

Awarded Mar 17 at 17:12

Pierre-Aubry Simon

25612 bronze badges

Deciding whether rational periodic external rays of the Mandelbrot set land on primitive or satellite components

Awarded Mar 17 at 2:11

Eduardo Sodré

736 bronze badges

Isomorphism between maximal planar graphs and minimal set unions

Awarded Mar 16 at 20:30

librus

916 bronze badges

Transferring spectral gap from range to null space of a PSD operator arising from the Weil explicit formula

Awarded Mar 14 at 14:45

Mabdullah

1013 bronze badges

Upper bound on the intersection of two radius-r Hamming balls in binary constant-weight codes when codewords are at Hamming distance 2

Awarded Mar 13 at 13:27

zchan

233 bronze badges

Boundedness of second order elliptic operator after convolution

Awarded Mar 12 at 22:27

ajr

2131 silver badge8 bronze badges

Bound on $\int_0^1\sqrt{\log N_{[]}(\varepsilon,\mathcal{F},d)} \, d\varepsilon$ over the class of half-spaces $\mathcal{F}$ on $\mathbb{R}^d$?

Awarded Mar 10 at 9:26

Daan

2732 silver badges15 bronze badges

Category-theoretic foundations of analysis

Awarded Mar 10 at 2:53

Timur Obolenskiy

4158 bronze badges

Multidimensional Glasser's master theorem

Awarded Mar 9 at 4:37

user1728960

1734 bronze badges

Closed form for series involving $\binom{4n}{2n}\binom{2n}{n}$

Awarded Mar 8 at 21:50

Akerele Olofin

1833 bronze badges

Is the absolute Galois group of $k(t)$ a semi direct product?

Awarded Mar 6 at 14:30

Firebolt2222

3831 silver badge9 bronze badges

Is this a known property of ultrafilters?

Awarded Mar 6 at 12:42

Silvan Horvath

2712 silver badges7 bronze badges

Recursion theory of $0^\sharp$?

Awarded Mar 6 at 3:33

Edward H

3551 gold badge5 silver badges12 bronze badges

Intersection of centralizers in $S_n$

Awarded Mar 5 at 17:09

jessica rhoades

134 bronze badges

The forward orbit equidistributes

Awarded Mar 2 at 11:22

Ricci Ten

338 bronze badges

Asymptotic for fourth moment of derivatives of Riemann zeta function

Awarded Feb 27 at 17:07

kapnobatai

1614 bronze badges

Wikipedia's version of Zeeman's comparison theorem for spectral sequences

Awarded Feb 27 at 3:23

questioning

533 bronze badges

Van der Corput's B-process and partial summation

Awarded Feb 25 at 15:51

Ben Doyle

634 bronze badges

Why does this finite-dimensional integro-differential equation admit a solution?

Awarded Feb 25 at 11:10

Trọng Nguyễn

633 bronze badges

Search for an example function in the context of the inverse L'Hopital's Rule

Awarded Feb 24 at 19:10

dfnu

2036 bronze badges

Does the inequality imply a class of logarithmically convex functions?

Awarded Feb 23 at 7:31

Joker

1055 bronze badges

What is the consistency strength of SRP (Stationary Ramsey Property)?

Awarded Feb 22 at 18:44

tlonuqbar

1234 bronze badges

Do locally isomorphic algebraic groups have isomorphic adèle points?

Awarded Feb 21 at 22:03

Daniel Echtler

635 bronze badges

Higher-order vanishing near the boundary for solutions to $- \Delta u = f$

Awarded Feb 20 at 18:22

Patrick Li

3435 silver badges11 bronze badges

Is the following problem NP-complete?

Awarded Feb 20 at 15:12

Wannes De Maeyer

1215 bronze badges

Does an integer polynomial map with an infinite fiber have a stationary point?

Awarded Feb 19 at 17:18

Ben Johnsrude

7545 silver badges12 bronze badges

Simpler proof of lower bound for $R(3,k)$

Awarded Feb 19 at 9:35

Bruno Andrades

2361 silver badge7 bronze badges

How efficient is the following Catalan's constant sum?

Awarded Feb 18 at 21:27

Cad mio

235 bronze badges

Derived formulation of étale Poincaré duality

Awarded Feb 18 at 17:33

Jordan Levin

914 bronze badges

Is a Banach limit on $\ell^\infty$ measurable for the cylindrical $\sigma$-algebra $\sigma(\ell^\infty,\ell^1)$?

Awarded Feb 16 at 20:33

Zlyp

4838 bronze badges

Neighbouring geodesics in a hyperbolic group with more than one end

Awarded Feb 15 at 20:52

derprofi

1236 bronze badges

Is there a degree-5 polynomial with integer coefficients and with newly reducible second iterate?

Awarded Feb 14 at 12:01

mezzoctane

2751 gold badge2 silver badges11 bronze badges

Inverse principle of least action?

Awarded Feb 13 at 17:30

jeffreygorwinkle

1694 bronze badges

Leray spectral sequence and pullbacks

Awarded Feb 13 at 13:52

victor de vries

3171 silver badge5 bronze badges

Preprint repositories that allow papers in any language

Awarded Feb 11 at 2:48

Pasten

1,20113 silver badges17 bronze badges

Countable separating subset of dual of Banach space with unconditional basis

Awarded Feb 11 at 0:48

Miles Gould

1435 bronze badges

Divisor antichains whose sum equals the integer

Awarded Feb 8 at 20:20

Root4116

1054 bronze badges

Prove or disprove: $R^{n+1} \supseteq R \cap R^2 \cap \cdots \cap R^n$ for every binary relation $R$ on a set of size $n$

Awarded Feb 7 at 15:53

geoffrey

2731 silver badge6 bronze badges

Existence of optimal coupling in Strassen's type for stochastically ordered pair of probability measures

Awarded Feb 6 at 8:16

Edwd Z.

232 bronze badges

Identities in Leinster's operad for weak omega-categories

Awarded Feb 5 at 20:47

filo-Z

835 bronze badges

Can we make SOS decompositions strictly feasible with a suitable denominator?

Awarded Feb 2 at 20:01

LegionMammal978

9266 silver badges16 bronze badges

On a conjecture of Galeeva-Martens-Tresser

Awarded Jan 29 at 0:11

confused

3431 silver badge9 bronze badges

Synthetic $(\infty, 1)$-category theory

Awarded Jan 28 at 5:33

BoZhang

6553 silver badges7 bronze badges

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