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Aug
10
asked Power method for calculating dominant eigenvalue and eigenvector
Aug
9
reviewed Looks OK A particular integral: $\int_{-\infty}^{+\infty}\frac{\sin(\pi x)}{\prod_{k=-n}^{n}(x-k)}\,dx$
Aug
8
reviewed Reopen Does tensoring with a finite-dimensional module preserve products?
Aug
8
reviewed Leave Closed Question related to integration and function
Aug
8
comment Optimal algorithm for guessing random variable
This problem falls in the class of Markovian optimal control problems. it is useful to look at Bellman's principle.
Aug
8
answered Optimal algorithm for guessing random variable
Aug
8
comment Optimal algorithm for guessing random variable
Hmm, this is not Markovian, but still...
Aug
8
comment Optimal algorithm for guessing random variable
The simple answer to this question is work backward. I imagine no analytical solution in general, like most optimal control problems.
Aug
3
reviewed Looks OK Closest point of parameterized curve has orthogonal position vector to tangent
Aug
3
reviewed Approve An integral that I cannot simplify.
Aug
3
comment derivative of a linear operator
thank you guys. This is from Zeidler's applied functional analysis. I imagine there is an errata somewhere...
Aug
3
asked derivative of a linear operator
Jul
12
accepted Are $n$-dimension cubes $C^k$ manifolds with boundaries?
Jul
8
comment Can I show that a process which a supermartingale above a certain value and a submartingale below it converges?
Limit must exists by martingale convergence theorem. The limit is almost sure and $L^1$
Jul
8
comment Are $n$-dimension cubes $C^k$ manifolds with boundaries?
@AlexS can you just confirm for me that my understanding for boundary is correct.
Jul
8
comment Are $n$-dimension cubes $C^k$ manifolds with boundaries?
@AlexS can you please provide me with a reference. My source is Wikipedia: en.wikipedia.org/wiki/…
Jul
8
answered Does spectral norm of a square matrix equal to its largest eigenvalue in absolute value?
Jul
8
asked Are $n$-dimension cubes $C^k$ manifolds with boundaries?
Jul
8
comment Definition of $C^k$ boundary
just to check: a square is does not have a $C^1$ boundary because of at the corners?
Jul
7
accepted Continuous Sobolev Embedding