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Top Questions
24
votes
Is there a convenient differential calculus for cojets?
dg.differential-geometry
differentials
differential-calculus
asked Apr 3 '11 at 18:55
mathoverflow.net
21
votes
Who was Heinrich Hake?
ho.history-overview
integration
biography
asked Jan 29 '18 at 21:32
mathoverflow.net
14
votes
W*-completion of a C*-algebra?
oa.operator-algebras
von-neumann-algebras
asked Aug 1 '11 at 18:10
mathoverflow.net
13
votes
Combination topological space and locale?
ct.category-theory
gn.general-topology
locales
asked Sep 25 '19 at 22:54
mathoverflow.net
10
votes
Which W*-algebras are the duals of C*-coalgebras?
fa.functional-analysis
oa.operator-algebras
c-star-algebras
von-neumann-algebras
coalgebras
asked Aug 26 '12 at 8:08
mathoverflow.net
8
votes
Is there a symbol for ‘equal if defined’
logic
notation
asked Jan 22 '16 at 20:20
math.stackexchange.com
8
votes
Cardinal numbers vs collections of cardinal numbers
set-theory
asked Dec 22 '10 at 9:14
mathoverflow.net
8
votes
Foundations: Existence of uncountable ordinals.
lo.logic
set-theory
foundations
ordinal-numbers
asked Sep 8 '11 at 21:03
mathoverflow.net
7
votes
Sober except not $T_0$?
gn.general-topology
asked Aug 6 '11 at 1:05
mathoverflow.net
6
votes
Terminology for sequences/functions that approach each other
real-analysis
sequences-and-series
asymptotics
asked Jun 28 '13 at 7:08
mathoverflow.net
1
2
next
Top Answers
19
What is the most useful non-existing object of your field?
mathoverflow.net
16
Segal's Original Definition of a Topological Category
mathoverflow.net
15
Is $\frac{\textrm{d}y}{\textrm{d}x}$ not a ratio?
math.stackexchange.com
13
Why is a topology made up of 'open' sets?
mathoverflow.net
12
Not quite adjoint functors
mathoverflow.net
10
Interesting Applications of the Classical Stokes Theorem?
mathoverflow.net
9
Does equality between sets contradict the philosophy behind structural set theory?
mathoverflow.net
8
What is an ideal-supporting algebra?
mathoverflow.net
8
Observables and dimensional analysis
mathoverflow.net
8
The formal p-adic numbers
mathoverflow.net
7
Set theories without “junk” theorems?
mathoverflow.net
7
What are the occurrences of stacks outside algebraic geometry, differential geometry, and general topology?
mathoverflow.net
6
Chomp! without the law of the excluded middle
mathoverflow.net
6
What is a good handwriting font for mathematics?
matheducators.stackexchange.com
6
Practical experience with teaching differentials in freshman calc?
matheducators.stackexchange.com
5
Show that $f(a)=f(a-1).$
math.stackexchange.com
5
Math blog directory
mathoverflow.net
5
If $A,B,C\in(0,\pi)$ then prove that $\sin A\sin B\sin C-\sin A-\sin B-\sin C+2\ge0$
math.stackexchange.com
5
Why do we teach that every line is a linear function?
matheducators.stackexchange.com
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mathoverflow.net
math.stackexchange.com
matheducators.stackexchange.com