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  • 44 votes cast
Mar
4
revised An variation of “Lk” in simplicial complexes
edited body
Mar
4
asked An variation of “Lk” in simplicial complexes
Feb
23
awarded  Popular Question
Feb
13
comment How can not-equals be expressed as an inequality for a linear programming model
It is intutive it does not work, because polyhedrons are convex and closed, while not-equals correspond to non-convex open regions.
Feb
13
asked fundamental theorem of linear inequalities
Feb
1
accepted Expansion of $x^{-1/2}$ at $0$
Feb
1
revised Expansion of $x^{-1/2}$ at $0$
clarification
Feb
1
asked Expansion of $x^{-1/2}$ at $0$
Jan
29
comment Approaches to integrate $\int_0^1 \frac{x}{\sqrt{a+bx+cx^2}} dx$
Thanks, that got me on the right track.
Jan
29
asked Approaches to integrate $\int_0^1 \frac{x}{\sqrt{a+bx+cx^2}} dx$
Jan
28
accepted If A $\subset S^n$ has spherical diameter < $\pi$, then $S^n - A$ contains a closed semisphere.
Jan
27
comment If A $\subset S^n$ has spherical diameter < $\pi$, then $S^n - A$ contains a closed semisphere.
The original statement was blatantly wrong. I have editted the question into what I actually meant.
Jan
27
revised If A $\subset S^n$ has spherical diameter < $\pi$, then $S^n - A$ contains a closed semisphere.
corrected question
Jan
25
asked If A $\subset S^n$ has spherical diameter < $\pi$, then $S^n - A$ contains a closed semisphere.
Dec
19
comment Distinction between 'adjoint' and 'formal adjoint'
These lines on Wikipedia only describe the construction for a differential operator. I have been concerned about general operators and their formal adjoints.
Nov
16
awarded  Yearling
Nov
8
asked Correct term for trivial extension of linear operator on Hilbert spaces
Nov
2
comment Solid angle between vectors in n-dimensional space
Your second formula is quite awkward, because you apply arctan against a vector.
Oct
27
accepted Is the Empty set an orientable manifold?
Oct
27
asked Is the Empty set an orientable manifold?