Mathematics
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answer
37
Why/How does the determinant of the Hessian matrix, combined with the 2nd derivatives, tell us max., min., saddle points? Reasoning behind it?
Oct 26, 2016
answer
22
Are there any objects which aren't sets?
Mar 22, 2016
answer
20
Calculus and Category theory
Apr 11, 2017
question
17
"Proper" definition of a proper map?
Apr 6, 2017
question
16
Properties of the category of smooth vector bundles over a smooth manifold
Apr 30, 2015
question
15
Is there an infinite dimensional Lie group associated to the Lie algebra of all vector fields on a manifold?
May 17, 2015
answer
15
Basic Geometric intuition, context is undergraduate mathematics
Nov 10, 2016
question
14
What does prolongation mean in differential geometry?
Feb 26, 2017
question
14
Motivation for the definition of an infinitesimal object
Apr 2, 2015
answer
14
What is the gentlest notes/book of intro differential topology?
Jun 29, 2017
Top Meta posts
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Are the tags "projective-spaces" and "projective-geometry" synonyms?
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60
Synthetic vs. classical differential geometry
43
Constructive algebraic geometry
27
Etiquette of publishing folklore results
26
Examples of Kan extensions, adjunctions, and (co)monads in analysis, Lie theory, and differential geometry?
22
Redefine \emph to be both bold and italic

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