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Top Questions
10
votes
Counting the number of elements in a double coset
linear-algebra
combinatorics
group-theory
representation-theory
asked Sep 19, 2014 at 19:54
math.stackexchange.com
8
votes
Motivation behind the definition of monomorphism and epimorphism in category theory
category-theory
monomorphisms
epimorphisms
asked Feb 16, 2015 at 18:11
math.stackexchange.com
7
votes
Definition of expectation value in quantum mechanics
probability-distributions
quantum-mechanics
asked Aug 19, 2017 at 0:28
math.stackexchange.com
6
votes
(Determinant of) Hessian in local coordinates
differential-geometry
asked Mar 4, 2014 at 17:32
math.stackexchange.com
6
votes
What conditions on $f\in L^1$ guarantee that $\hat f\in L^1$?
real-analysis
fourier-analysis
fourier-transform
asked Dec 13, 2016 at 18:05
math.stackexchange.com
5
votes
Can a "difference formula" be a "sum formula" too?
calculus
real-analysis
trigonometry
asked May 31, 2015 at 18:59
math.stackexchange.com
5
votes
spectrum of the multiplication operator for general measure spaces
functional-analysis
operator-theory
asked Aug 26, 2016 at 3:40
math.stackexchange.com
5
votes
Different definitions of Casimir element
representation-theory
lie-algebras
asked Oct 5, 2014 at 6:11
math.stackexchange.com
5
votes
Using Comma in if...then Conditional Sentences
article-writing
asked Jan 26, 2015 at 3:18
math.stackexchange.com
5
votes
Does there exist a smooth version of Cohen's factorization theorem?
reference-request
harmonic-analysis
asked Jun 19, 2015 at 17:56
mathoverflow.net
1
2
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Top Answers
6
Cartesian product of dense sets is dense?
math.stackexchange.com
6
Shortest and most elementary proof that the product of an $n$-column and an $n$-row has determinant $0$
math.stackexchange.com
6
Is $\|x\| = \| \overline{x} \|$ in an inner product space?
math.stackexchange.com
6
Do entries in augmented columns count as pivot?
math.stackexchange.com
6
Linear Algebra Versus Functional Analysis
math.stackexchange.com
5
How to determine the general polar equation of a circle
math.stackexchange.com
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