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Jan
4
accepted Dixmier-Douady class: computations
Dec
19
awarded  Caucus
Nov
27
comment Is the translation of open and closed sets to some language non-antonym preserving?
Interesting, thanks.
Nov
27
asked Is the translation of open and closed sets to some language non-antonym preserving?
Jul
2
awarded  Curious
Jun
5
awarded  Yearling
Jun
2
revised no function $\phi\in C^2(\mathbb R^3,\mathbb R)$ such that $\nabla \phi=(-y,x,0)^t$
deleted 44 characters in body
Jun
2
answered no function $\phi\in C^2(\mathbb R^3,\mathbb R)$ such that $\nabla \phi=(-y,x,0)^t$
Apr
16
comment Is this already an equation/law that has been found?
I've only seen that attribution in "Die Vermessung der Welt".
Feb
10
accepted Homotopy of a (non-spherical) cow.
Feb
7
revised Homotopy of a (non-spherical) cow.
deleted 518 characters in body
Feb
7
revised Homotopy of a (non-spherical) cow.
deleted 518 characters in body
Feb
7
asked Homotopy of a (non-spherical) cow.
Jun
5
awarded  Yearling
May
30
awarded  Citizen Patrol
May
23
revised How to express $2 \cos X = \sin X$ in terms of $\sin X$?
added a tag
May
23
suggested approved edit on How to express $2 \cos X = \sin X$ in terms of $\sin X$?
May
21
awarded  Constituent
May
7
awarded  Caucus
Apr
1
comment Formal Variational Calculus Reference Request
Arnold's book "Mathematical Methods of Classical Mechanics" has something to say about that. You might be also interested in Bleecker's "Gauge theory and variational principles"