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Sep
9
asked Approximate root of $\alpha x - \beta y$ over $\mathbb Z$ except origin
Jul
18
comment Canonical term for $\overline X / X$ where $X$ is a normed space.
This appears in the theory of Hilbert complexes, as quotient of the closure of the boundaries by the boundaries. More, generally, for Banach complexes see: link.springer.com/article/10.1007%2FBF02922133?LI=true
Jul
17
asked Canonical term for $\overline X / X$ where $X$ is a normed space.
Jul
3
asked Empty set in a simplicial complex
Jul
2
awarded  Curious
Jul
2
awarded  Inquisitive
Apr
24
awarded  Good Question
Mar
31
awarded  Notable Question
Feb
26
awarded  Favorite Question
Jan
21
asked Universal property of tensor products / Categorial expression of bilinearity
Nov
16
awarded  Yearling
Nov
13
awarded  Notable Question
Sep
9
comment Formula for surface measure of spherical cap on $S^n$.
In the section 'hyperspherical cap', the wikipedia article gives a formula for the surface in terms of regularized incomplete beta functions. I wonder whether a single integral formula like for the volume, at the beginning of the same section, does exist.
Sep
8
comment Formula for surface measure of spherical cap on $S^n$.
I am specifically looking for formulas nicer than there.
Sep
8
asked Formula for surface measure of spherical cap on $S^n$.
Aug
15
asked What is $H^1([0,1]) \otimes H^1([0,1])$?
Jun
24
asked How to define polyhedra?
Jun
23
accepted Can all real/complex vector spaces be equipped with a Hilbert space structure?
Jun
23
revised Can all real/complex vector spaces be equipped with a Hilbert space structure?
added 159 characters in body
Jun
23
asked Can all real/complex vector spaces be equipped with a Hilbert space structure?