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Nov
26
reviewed Leave Open Hypothesis test beyond simple hypotheses (mathematical statistics)
Nov
26
comment Convex Optimization in an Ellipsoid
Why should it? Since $A$ is PSD this is a convex quadratic program. By the way: Isn't there a closed form solution (using $A^{-1}$)?
Nov
24
comment Are there any non-linear solutions of Cauchy's equation ($f(x+y)=f(x)+f(y)$) without assuming the Axiom of Choice?
As of today the link to the short proof of "addive + measurable implies liner" is broken.
Nov
20
comment When is an erratum necessary?
@AndréHenriques I thought the same and just wanted to hear the OPs and other opinions.
Nov
20
comment When is an erratum necessary?
Should this be moved to academia.stackexchange.com or is it to be expected that answers will be specific for mathematics?
Nov
20
answered What are the known conditions for the log of the Fourier transform of a 2D real discrete signal to have no branch cuts?
Nov
19
awarded  Nice Answer
Nov
19
comment A metric on the set of BV functions, is it mentioned/studied in literature?
In dimension $n$ BV embeds into $L^{n/(n-1)}$.
Nov
19
revised A metric on the set of BV functions, is it mentioned/studied in literature?
added 1 character in body
Nov
19
reviewed Approve Monte Carlo Simulation - efficient simulation of tail outcomes
Nov
19
comment A metric on the set of BV functions, is it mentioned/studied in literature?
If the one-dimensional case is enough for you, you may well go with the Adams et al papers from the 30s. Nowadays there is well developed theory of BV spaces in any dimensions I personally like to read to newer more polished literature on the topic. You can, however, edit the post (which will then go the review cue). (On a different matter: I usually do not follow links that go directly to some pdf but would prefer a link to a site which states title/abstract and to on so that I can decide whether I not I would like to read the article.)
Nov
19
comment A metric on the set of BV functions, is it mentioned/studied in literature?
This seems like a valid question for MO to me.
Nov
19
answered A metric on the set of BV functions, is it mentioned/studied in literature?
Nov
19
reviewed Leave Open A metric on the set of BV functions, is it mentioned/studied in literature?
Nov
18
comment Base schemes and Bayesian priors
@QiaochuYuan Should your comment say that a boring toy model of Bayesian updating is related to a boring toy model of categories? But wait, inclusion of sets in not really a toy model for categories, so…
Nov
18
comment Smoothing L1 norm, Huber vs Conjugate
@jakeoung No, this is not true in general.
Nov
17
comment Is being rational decidable?
Is this the dual question to "Is making decisions rational?"
Nov
17
comment Metrization of weak convergence of signed measures
As a matter of fact it sticked to the advice and using Kantorovich and Rubinstein for these norms (rather than Wasserstein or Monge), see the paper Imaging with Kantorovich-Rubinstein discrepancy.
Nov
17
comment Metrization of weak convergence of signed measures
Sorry for the late answer: This thing is, that I only want to metrize the notion of weak$*$ convergence not the whole weak* topology. These are in fact two different things. The weak* topology can be metrized on bounded subsets (see Pietro Majers answer).
Nov
17
awarded  Notable Question