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visits member for 2 years, 10 months
seen Nov 17 at 22:53

Oct
5
awarded  Popular Question
Jul
2
awarded  Curious
May
18
awarded  Nice Question
Aug
29
asked Rank-2n tensor algebra eigenvalue equation
Aug
7
comment extremal points on a manifold intrinsiclly
@Scaramouche sure, that's fine. I just wanted to assume I can taylor expand around each point if I wanted to. I thought the analyticity implied the smoothness which gave the differentiability property.
Aug
7
comment extremal points on a manifold intrinsiclly
@TedShifrin I know what you mean. Let me try to express the notion I am aiming for another way, with a more empirical analogy. Please stay with me, i know this seems out of nowhere but it's the only way I can visualize the scenario. Take a passage from one side of the earth to the other through the center. If one were to drop through this passage, there is an attractive fixed point at the center of the earth. This appears to be a higher dimensional analogue of a ''valley'' from before. Is there a intrinsic geometric way to characterize these types of points?
Aug
7
comment extremal points on a manifold intrinsiclly
@TedShifrin I guess I mean generalizations of the ideas of saddle points'', and hills'' and ``valleys''... Does that make sense?
Aug
7
asked extremal points on a manifold intrinsiclly
Mar
6
awarded  Tumbleweed
Feb
27
asked Multi-dimensional array decomposition
Jan
13
awarded  Yearling
Jan
10
asked Lie Derivative in Projective Hilbert Space
Oct
23
awarded  Editor
Oct
23
revised Singular Value Decomposition for Continuous Variables
Tried to be more specific and give more detail
Oct
23
asked Singular Value Decomposition for Continuous Variables
Jun
29
comment Matrix raised to a matrix
@RobertIsrael Could you recommend some place to look for taking the log of a bounded linear operator, I would really appreciate it.
Jun
29
accepted Matrix raised to a matrix
Jun
29
asked Matrix raised to a matrix
Jun
25
accepted Cardinality of Mappings on a 2-Sphere
Jun
25
comment Cardinality of Mappings on a 2-Sphere
Can you edit that into your answer and I'll check it off ;)