Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

General Q&A about all branches of theoretical and applied mathematics, including closely-adjacent sciences where the central question is about the math.

Filters (None)
28%
+0 −3
What is a dual object? [closed]

0 answers  ·  posted 4d ago by Julius H.‭  ·  closed 3d ago by Peter Taylor‭

28%
+0 −3
What are the Peano axioms?

0 answers  ·  posted 7d ago by Julius H.‭

44%
+2 −3
Cyclical or “loop” fractals?

1 answer  ·  posted 12d ago by Julius H.‭  ·  last activity 11d ago by r~~‭

66%
+2 −0
37%
+1 −3
60%
+1 −0
The derivatives of a function at a boundary point

1 answer  ·  posted 1mo ago by tommi‭  ·  last activity 1mo ago by Snoopy‭

57%
+2 −1
60%
+1 −0
Using convexity in the proof of Hölder’s inequality

1 answer  ·  posted 1mo ago by Snoopy‭  ·  last activity 1mo ago by Snoopy‭

60%
+1 −0
60%
+1 −0
71%
+3 −0
Is there a $(n_3)$ configuration which is not self-dual?

1 answer  ·  posted 2mo ago by WheatWizard‭  ·  last activity 2mo ago by Peter Taylor‭

66%
+2 −0
80%
+6 −0
What is special about the 11-cell and 57-cell?

1 answer  ·  posted 8mo ago by WheatWizard‭  ·  last activity 3mo ago by ziggurism‭

75%
+4 −0
70%
+5 −1
77%
+5 −0
Notation for one-sided hypothesis testing

1 answer  ·  posted 1y ago by tommi‭  ·  last activity 6mo ago by Glen_b‭

42%
+1 −2
Picture proof for expansion of $x^n−y^n$

2 answers  ·  posted 6mo ago by Este‭  ·  last activity 6mo ago by Peter Taylor‭

71%
+3 −0
37%
+1 −3
80%
+6 −0
Criteria for solvable Minesweeper game?

0 answers  ·  posted 8mo ago by Olin Lathrop‭  ·  edited 8mo ago by Olin Lathrop‭