1,768 reputation
417
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location Rehovot, Israel
age 24
visits member for 2 years, 5 months
seen 12 hours ago

I'm a PhD student in Weizmann Institute, specializing in Probability.


Sep
27
revised “Bad” lower functions for a Bessel process?
edited body
Sep
27
asked “Bad” lower functions for a Bessel process?
Sep
25
comment Derive concentration bound for the derivative
Why on Earth would you expect this for general $f$, given that the derivative may not even exist?
Sep
24
awarded  Autobiographer
Sep
24
comment Is it true that all stationary measurable stochastic processes are “measurably stationary”?
Of course you can. But the idea is pretty much standard anyway...
Sep
23
comment Is it true that all stationary measurable stochastic processes are “measurably stationary”?
There is indeed such a map, under the assumptions that a) $X$ generates the whole σ-algebra on $\Omega$, b) $(\Omega,\mathcal{F},\mathsf{P})$ is standard (see the references in en.wikipedia.org/wiki/…). But we don't actually need it. Please see the updated answer...
Sep
23
revised Is it true that all stationary measurable stochastic processes are “measurably stationary”?
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Sep
23
answered Is it true that all stationary measurable stochastic processes are “measurably stationary”?
Sep
20
revised $L^p$ estimates for Ornstein-Uhlenbeck: what is known beyond hypercontractivity?
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Sep
20
revised $L^p$ estimates for Ornstein-Uhlenbeck: what is known beyond hypercontractivity?
edited title
Sep
20
asked $L^p$ estimates for Ornstein-Uhlenbeck: what is known beyond hypercontractivity?
Sep
15
comment Does exterior product commute functor Hom?
@DinhVanHoang: My comment still applies. For infinite-dimensional vector spaces, for instance, $\mathrm{Hom}(\wedge^2 M, R)$ consists of all skew-symmetric matrices, while $\wedge^2 \mathrm{Hom}(M, R)$ only contains those of finite rank.
Sep
15
comment Results true in a dimension and false for higher dimensions
Contraction in Hilbert space, I suppose?
Sep
15
comment Does exterior product commute functor Hom?
I strongly suspect that it's false even for infinite-dimensional vector spaces over fields. Did you check that?
Aug
12
comment Is the ideal of functions vanishing at a set complementable in $C(X)$?
@SergeiAkbarov: Actually, it is. $\mathbb{N} \subset \beta \mathbb{N}$ consists of isolated points, so it's open. And in any case, your ideal $I$ only depends on the closure of the set.
Aug
12
answered Is the ideal of functions vanishing at a set complementable in $C(X)$?
Aug
7
awarded  Popular Question
Aug
4
revised When does a stochastic process have its sample paths a.s. in the reproducing kernel hilbert space (RKHS) induced by its covariance function?
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Aug
4
revised When does a stochastic process have its sample paths a.s. in the reproducing kernel hilbert space (RKHS) induced by its covariance function?
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Aug
4
answered When does a stochastic process have its sample paths a.s. in the reproducing kernel hilbert space (RKHS) induced by its covariance function?