Stack Exchange Network

Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
Loading…
  1. 0
  2. +0
    • Tour Start here for a quick overview of the site
    • Help Center Detailed answers to any questions you might have
    • Meta Discuss the workings and policies of this site
    • About Us Learn more about Stack Overflow the company
    • Business Learn more about hiring developers or posting ads with us
  3. Log in Sign up
  4. current community

    • MathOverflow
      help chat
    • MathOverflow Meta

    your communities

    Sign up or log in to customize your list.

    more stack exchange communities

    company blog
MathOverflow
  1. Home
    1. Questions
    2. Tags
    3. Users
    4. Unanswered
Profile Activity
Meta user
Network profile
subshift

Reputation

960
  • 960
  • 890
  • 820
  • 2018
  • 2019
  • 2020
  • 2021

Top tag

co.combinatorics

Next privilege

1,000 Rep.
See votes

Badges

8
15

Newest

 Good Answer

Next badge

0/1
Custodian

Impact

~190k
people reached
0 posts edited
0 helpful flags
174 votes cast
Summary Answers Questions Tags Badges Bookmarks Bounties Reputation All actions

18 Bookmarks

Votes Activity Newest Views Added
238
votes
41
answers
87k
views

A single paper everyone should read? [closed]

soft-question big-list
Apr 16 at 15:27 Community♦ 1
188
votes
30
answers
71k
views

Real-world applications of mathematics, by arxiv subject area?

applications mathematics-education popularization big-list
Dec 26 '18 at 13:31 Community♦ 1
135
votes
26
answers
36k
views

A soft introduction to physics for mathematicians who don't know the first thing about physics

mp.mathematical-physics physics
Aug 13 '18 at 17:30 BS. 8,689
122
votes
43
answers
31k
views

What are the most attractive Turing undecidable problems in mathematics?

computability-theory big-list examples lo.logic
Dec 26 at 20:08 Noah Schweber 29.4k
80
votes
5
answers
6k
views

Algorithm or theory of diagram chasing

kt.k-theory-and-homology at.algebraic-topology homological-algebra
Jun 16 at 10:17 arsmath 5,896
66
votes
6
answers
5k
views

Computational complexity of computing homotopy groups of spheres

at.algebraic-topology computational-complexity
May 5 at 23:39 Charles Rezk 24.7k
58
votes
5
answers
8k
views

Decidability of chess on an infinite board

lo.logic combinatorial-game-theory chess infinite-games
May 6 '18 at 0:04 Joel David Hamkins 184k
41
votes
1
answer
2k
views

Pach's “Animals”: What if the genus is positive?

reference-request gt.geometric-topology mg.metric-geometry discrete-geometry polyhedra
Sep 22 '17 at 20:31 Joseph O'Rourke 137k
29
votes
4
answers
4k
views

Why is it so difficult to write complete (computer verifiable) proofs?

soft-question proof-assistants
Sep 20 '11 at 13:36 Community♦ 1
25
votes
3
answers
9k
views

Cutting a rectangle into an odd number of congruent pieces

co.combinatorics discrete-geometry
Sep 25 '17 at 22:25 Community♦ 1
23
votes
1
answer
2k
views

What can be tiled by T-tetrominoes?

co.combinatorics tiling
Jun 16 '11 at 7:46 Community♦ 1
19
votes
3
answers
2k
views

Gauss-Bonnet Theorem for Graphs?

graph-theory discrete-geometry
Mar 22 '17 at 9:44 Community♦ 1
18
votes
17
answers
5k
views

What is your favorite isomorphism? [closed]

big-list examples mathematics-education
Sep 3 '10 at 2:46 Community♦ 1
9
votes
3
answers
2k
views

Connection between properties of Dynamical and Ergodic Systems

ds.dynamical-systems ergodic-theory tag-removed
Dec 3 '12 at 1:27 Community♦ 1
6
votes
1
answer
222
views

Is the conjugacy problem in $\mathbb{Q}^n \rtimes \mathbb{Z}^m$ solvable

gr.group-theory
Jul 9 '13 at 23:25 Community♦ 1
3
votes
1
answer
310
views

Decision problem about the existence of solution for an integer matrix equation

nt.number-theory ac.commutative-algebra
Apr 20 '11 at 22:48 Community♦ 1
3
votes
1
answer
183
views

Spectrum of primitive nonnegative integer matrices

nt.number-theory matrices algebraic-number-theory nonnegative-matrices
Jul 14 '17 at 22:16 Community♦ 1
1
vote
1
answer
593
views

3D surfaces of infinite genus

gn.general-topology
Sep 28 '11 at 9:34 Community♦ 1
MathOverflow
  • Tour
  • Help
  • Chat
  • Contact
  • Feedback
  • Mobile
Company
  • Stack Overflow
  • For Teams
  • Advertise With Us
  • Hire a Developer
  • Developer Jobs
  • About
  • Press
  • Legal
  • Privacy Policy
  • Terms of Service
Stack Exchange
Network
  • Technology
  • Life / Arts
  • Culture / Recreation
  • Science
  • Other
  • Stack Overflow
  • Server Fault
  • Super User
  • Web Applications
  • Ask Ubuntu
  • Webmasters
  • Game Development
  • TeX - LaTeX
  • Software Engineering
  • Unix & Linux
  • Ask Different (Apple)
  • WordPress Development
  • Geographic Information Systems
  • Electrical Engineering
  • Android Enthusiasts
  • Information Security
  • Database Administrators
  • Drupal Answers
  • SharePoint
  • User Experience
  • Mathematica
  • Salesforce
  • ExpressionEngine® Answers
  • Stack Overflow em Português
  • Blender
  • Network Engineering
  • Cryptography
  • Code Review
  • Magento
  • Software Recommendations
  • Signal Processing
  • Emacs
  • Raspberry Pi
  • Stack Overflow на русском
  • Code Golf
  • Stack Overflow en español
  • Ethereum
  • Data Science
  • Arduino
  • Bitcoin
  • Software Quality Assurance & Testing
  • Sound Design
  • Windows Phone
  • more (28)
  • Photography
  • Science Fiction & Fantasy
  • Graphic Design
  • Movies & TV
  • Music: Practice & Theory
  • Worldbuilding
  • Video Production
  • Seasoned Advice (cooking)
  • Home Improvement
  • Personal Finance & Money
  • Academia
  • Law
  • Physical Fitness
  • Gardening & Landscaping
  • Parenting
  • more (10)
  • English Language & Usage
  • Skeptics
  • Mi Yodeya (Judaism)
  • Travel
  • Christianity
  • English Language Learners
  • Japanese Language
  • Chinese Language
  • French Language
  • German Language
  • Biblical Hermeneutics
  • History
  • Spanish Language
  • Islam
  • Русский язык
  • Russian Language
  • Arqade (gaming)
  • Bicycles
  • Role-playing Games
  • Anime & Manga
  • Puzzling
  • Motor Vehicle Maintenance & Repair
  • Board & Card Games
  • Bricks
  • Homebrewing
  • Martial Arts
  • The Great Outdoors
  • Poker
  • Chess
  • Sports
  • more (16)
  • MathOverflow
  • Mathematics
  • Cross Validated (stats)
  • Theoretical Computer Science
  • Physics
  • Chemistry
  • Biology
  • Computer Science
  • Philosophy
  • Linguistics
  • Psychology & Neuroscience
  • Computational Science
  • more (10)
  • Meta Stack Exchange
  • Stack Apps
  • API
  • Data
  • Blog
  • Facebook
  • Twitter
  • LinkedIn
  • Instagram

site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. rev 2021.1.20.38359