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Jun
19
comment Diophantine with Gaussian Integer
I assume this is part of Project Euler, problem 385. Sneaky, asking here... But, I don't think this route gives you what you want!
Dec
7
comment Example of a stochastic process which does not have the Markov property
@romkyns: so when the timescales you're concerned with are getting smaller, then it is no longer a good approximation, so non-Markovian...?
Dec
7
answered Example of a stochastic process which does not have the Markov property
Oct
17
comment Index notation for tensors: is the spacing important?
@Giuseppe: But without the spacing you lose part of the location information...
Oct
16
answered Index notation for tensors: is the spacing important?
Oct
14
awarded  Teacher
Oct
14
answered Need some help settling a bet
Sep
29
comment eigenvalues of a matrix under a polynomial
@Pierre-YvesGaillard: I think the crucial step is to show that whatever property you want is continuous on $M_n(\mathbb{C})$. I admit I didn't think through the argument for this case --- but $f$ is sufficiently continuous, and taking eigenvalues should be too.
Sep
29
answered eigenvalues of a matrix under a polynomial
Sep
27
comment When is this Self-adjoint?
Maybe this is a homework question?
Jul
29
comment Do there exist any visual representations of prime factorizations?
Arithmetic topology? arxiv.org/abs/0904.3399v1 Primes ~ knots; integers are linked knots.
Jun
21
awarded  Supporter