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Self-Learner

Answer your own question with score of 3 or more.

Awarded 1519 times.

Proof of Bellman optimality equation for finite Markov Decision Processes

Awarded Aug 11, 2023 at 9:05

hardhu

1811 silver badge6 bronze badges

Presentation of the fundamental group of a complex variety

Awarded Aug 7, 2023 at 13:31

FPV

5813 silver badges15 bronze badges

Topological property of convergent sequences being eventually constant

Awarded Aug 1, 2023 at 7:55

PatrickR

3512 silver badges12 bronze badges

Is a semimartingale that is continuous a continuous semimartingale?

Awarded Jul 30, 2023 at 23:50

user479223

2,0592 gold badges10 silver badges30 bronze badges

Lower bound for mutual inner products of N random unit vectors in $\mathbb{R}^n$, N > n

Awarded Jul 30, 2023 at 18:42

user27182

3372 silver badges10 bronze badges

Is there an infinite family of primes $q_{1},q_{2},...$ so that the rank of $E(\mathbb{Q}(\sqrt{-q_{i}}))$ equals that of $E(\mathbb{Q})$?

Awarded Jul 30, 2023 at 9:11

The Thin Whistler

1,82112 silver badges23 bronze badges

The constant of the reverse Hölder inequality for polynomials

Awarded Jul 7, 2023 at 15:56

Sébastien Loisel

9815 silver badges9 bronze badges

Amenable groupoid C*-algebras satisfy the UCT in English?

Awarded Jun 29, 2023 at 15:12

Diego Martinez

7535 silver badges13 bronze badges

The combinatorics of the Nullstellensatz for the variety of nilpotent matrices

Awarded Jun 25, 2023 at 14:05

Samuel Johnston

5242 silver badges12 bronze badges

Capset problem but considering differences with bounded support

Awarded Jun 23, 2023 at 18:41

Zach Hunter

3,4992 gold badges11 silver badges24 bronze badges

About Palais' remark that an isometry of Riemannian manifolds does not induce an isometry of the Hilbert manifolds of curves

Awarded Jun 21, 2023 at 13:10

Jaap Eldering

2,53018 silver badges27 bronze badges

Product of all conjugacy classes

Awarded Jun 18, 2023 at 8:01

Sebastian Burciu

8978 silver badges14 bronze badges

Does Bochner's Theorem apply to Fourier coefficients?

Awarded Jun 8, 2023 at 22:25

spaceman

6053 silver badges15 bronze badges

Decidability of completing Penrose tilings

Awarded Jun 4, 2023 at 0:07

interstice

5092 silver badges7 bronze badges

What is the ring structure on Lusztig's integral form of quantum $\mathfrak{sl}(2)$?

Awarded May 30, 2023 at 15:49

Alvaro Martinez

5022 silver badges12 bronze badges

Is $T$ totally bounded when $C_u(T)$ is separable?

Awarded May 30, 2023 at 6:42

Hiro Shiba

2352 silver badges9 bronze badges

Are $\beta \mathbb{Q}$ and $\beta(\beta\mathbb{Q}\setminus\mathbb{Q})$ homeomorphic?

Awarded May 5, 2023 at 17:12

Jakobian

1,6736 silver badges19 bronze badges

Cauchy identity for Jack functions

Awarded May 3, 2023 at 22:16

Giulio R

1211 silver badge9 bronze badges

Conjecture on the existence of centrosymmetric Hadamard matrices

Awarded Apr 24, 2023 at 21:11

Konrad Burnik

5493 silver badges12 bronze badges

When does base-change in topological spaces preserve quotient maps?

Awarded Apr 24, 2023 at 20:19

Lennart Meier

12.2k4 gold badges73 silver badges109 bronze badges

For locally profinite groups $H\lhd G$, is there a spectral sequence $\newcommand\@[2]{{\rm Ext}_#1^{#2}(\pi_1,\pi_2)}H^p(G/H,\@Hq)\implies\@G{p+q}$?

Awarded Apr 24, 2023 at 6:27

Suzet

7993 silver badges13 bronze badges

Series solution for general trinomial

Awarded Apr 23, 2023 at 14:50

CarP24

3771 silver badge8 bronze badges

Two fractionally isomorphic graphs but only one having eigenvalue zero

Awarded Apr 22, 2023 at 19:26

Sirolf

4932 silver badges9 bronze badges

Is $F(F(A)) = A$ for every k-hypercube where k is odd?

Awarded Apr 22, 2023 at 17:21

Nima Aryan

14910 bronze badges

Computing kernels of maps of modules over a finitely presented algebra

Awarded Apr 20, 2023 at 15:34

Calvin McPhail-Snyder

2,62513 silver badges29 bronze badges

Near-ring localizations

Awarded Apr 16, 2023 at 2:21

nikita

1315 bronze badges

An inequality for two iid r.v.s

Awarded Apr 14, 2023 at 18:40

Sheng Wang

1357 bronze badges

Does a strong digraph always admit a vertex that lies on some path between $\Theta(n^2)$ pairs of vertices?

Awarded Apr 11, 2023 at 12:50

Arnaud Casteigts

2351 silver badge8 bronze badges

In a rigid monoidal category, why is $W^*\otimes V^*$ a left dual of $V \otimes W$?

Awarded Apr 4, 2023 at 3:48

tyrese

2391 silver badge6 bronze badges

When do there exist $ n $ commuting, derivations which locally generate $ T_{A/k} $ as an $ A $-module?

Awarded Apr 4, 2023 at 1:40

Schemer1

1,0694 silver badges12 bronze badges

Bertini theorems for base-point-free linear systems in positive characteristics

Awarded Mar 28, 2023 at 10:57

Karl Schwede

20.7k3 gold badges55 silver badges99 bronze badges

Step in the Bruhat decomposition for reductive Lie groups

Awarded Mar 27, 2023 at 16:50

Calamardo

6954 silver badges18 bronze badges

Subgroup membership problem in simple groups

Awarded Mar 22, 2023 at 13:31

Carl-Fredrik Nyberg Brodda

6,6404 gold badges28 silver badges63 bronze badges

Existence of diffeomorphism interpolating affine map and identity

Awarded Mar 21, 2023 at 23:25

Sven Pistre

1938 bronze badges

Reference request: Cut-and-project method gives rise to a fiber bundle over the torus

Awarded Mar 21, 2023 at 2:20

Kyle

2431 silver badge9 bronze badges

Large values of $\zeta(1/2+it)$ from sums of short moments

Awarded Mar 20, 2023 at 22:42

Joshua Stucky

2,0825 silver badges17 bronze badges

Does a rational function extend to a point if all its 1-parameter extensions at that point agree?

Awarded Mar 18, 2023 at 16:41

Emre

8436 silver badges14 bronze badges

Number of monotone functions on a square grid

Awarded Mar 14, 2023 at 20:35

Dmitry

2311 silver badge8 bronze badges

Coordinate free way to construct inner product on exterior powers

Awarded Mar 3, 2023 at 16:01

Cindy

774 bronze badges

Connection 1-form of the frame bundle associated to a vector bundle with a connection

Awarded Feb 25, 2023 at 17:41

ychemama

1,3667 silver badges17 bronze badges

Sum of all root lengths in simple Lie algebra

Awarded Feb 20, 2023 at 3:04

Simon

4613 silver badges13 bronze badges

Is there a translation to English of Serre's GAGA?

Awarded Feb 19, 2023 at 17:41

sheaf-pilled

2311 silver badge8 bronze badges

For which $X$ is $X\times I$ collectionwise normal?

Awarded Feb 14, 2023 at 18:09

Tyrone

5,9261 gold badge30 silver badges54 bronze badges

Automatically generating combinatorial conjectures

Awarded Feb 10, 2023 at 12:21

Duncan W

3413 silver badges9 bronze badges

When a pro-$p$ group of finite rank can be embedded into the first congruence subgroup of ${\rm GL}_{N}(\mathbb{Z}_{p})$

Awarded Feb 4, 2023 at 5:28

stupid boy

6774 silver badges14 bronze badges

Infimum of Gaussian process

Awarded Jan 30, 2023 at 14:58

Uri Cohen

3332 silver badges11 bronze badges

Construction of skew-Hadamard matrix of order 292

Awarded Jan 27, 2023 at 1:19

Matteo Cati

2611 silver badge7 bronze badges

Determinant of a certain Vandermonde matrix

Awarded Jan 22, 2023 at 14:26

Fred Hucht

4,6741 gold badge15 silver badges35 bronze badges

Kan extension pseudonatural transformations

Awarded Jan 21, 2023 at 20:26

Fernando

8855 silver badges22 bronze badges

Consistency of Weak Diamond with a Weak Version of Martin's Axiom

Awarded Jan 16, 2023 at 12:41

Danielle Ulrich

2,17612 silver badges17 bronze badges

A harmonic function degenerate in one direction

Awarded Jan 10, 2023 at 8:42

Leo Moos

5,1332 gold badges13 silver badges26 bronze badges

Is there any maximal 1-planar or 2-planar graph that is not 3-connected

Awarded Jan 9, 2023 at 7:10

Xin Zhang

1,1905 silver badges11 bronze badges

Reference request: Serre's Groupes discrets

Awarded Jan 4, 2023 at 19:27

Maarten Derickx

2,27415 silver badges26 bronze badges

Isometric immersion of $\mathbb H^2$ into $\mathbb R^\infty$ built by Bieberbach

Awarded Jan 2, 2023 at 20:04

Zaragosa

1431 silver badge11 bronze badges

Intuitionistic consistency of surjection from naturals to reals

Awarded Dec 27, 2022 at 6:47

Sridhar Ramesh

5,9821 gold badge35 silver badges45 bronze badges

Some basic questions on quotient of group schemes

Awarded Dec 23, 2022 at 16:35

Daebeom Choi

6031 gold badge4 silver badges22 bronze badges

Dual polyhedra and electric circuits

Awarded Dec 22, 2022 at 20:41

carfog

4132 silver badges9 bronze badges

Does equality of Hodge star and symplectic star imply Kähler structure?

Awarded Dec 18, 2022 at 15:50

John Sidles

1,39918 silver badges39 bronze badges

Use random inner product to test if at least one vector is uniform

Awarded Dec 12, 2022 at 13:43

Lwins

1,55110 silver badges22 bronze badges

Orthogonal basis for the multilinear polynomials with zero "trace"

Awarded Dec 11, 2022 at 8:05

Yuval Filmus

1,91615 silver badges25 bronze badges

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