Vladimir

471 reputation

215

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visits	member for	1 year, 8 months
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	471 reputation	bio	website		visits	member for	1 year, 8 months
215 badges		location			seen	23 hours ago

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Dec 15	comment	Equivalent condition for a vector space to be finite dimensional @froggie Thanks! You are absolutely correct.
Dec 15	asked	Equivalent condition for a vector space to be finite dimensional
Dec 11	accepted	Example of non-unique-factorization in $\mathbb{Z}+x \mathbb{Q}[x]$.
Dec 11	asked	Example of non-unique-factorization in $\mathbb{Z}+x \mathbb{Q}[x]$.
Nov 15	accepted	How to find the coefficient of this Fourier sine series?
Nov 13	revised	How to find the coefficient of this Fourier sine series? added 2 characters in body
Nov 13	asked	How to find the coefficient of this Fourier sine series?
Oct 31	accepted	“Illegal” computation for an ideal in $\mathbb{Z}[\sqrt d]$
Oct 31	asked	“Illegal” computation for an ideal in $\mathbb{Z}[\sqrt d]$
Oct 23	accepted	An integration identity
Oct 23	revised	An integration identity edited tags
Oct 23	asked	An integration identity
Oct 15	accepted	Basics of Haar measure
Oct 15	asked	Basics of Haar measure
Oct 7	comment	What does the “direct product” mean in this context? @QiaochuYuan Hmmm... I was writing it as a "direct product" of a Sylow-7, a Sylow-11 and some Sylow-3 subgroups, whose intersection with each other are all trivial. So in fact, this is not a direct product... Could you show me how to deal with it?
Oct 7	comment	What does the “direct product” mean in this context? @QiaochuYuan In that wiki page, $\|G\times H\|=\|G\|\|H\|$, which seems not true in this context. :)
Oct 7	comment	What does the “direct product” mean in this context? Thanks. So in this context, it suffices to see if the intersection of those two subgroups is trivial, right?
Oct 6	asked	What does the “direct product” mean in this context?
Oct 6	comment	My “wrong” comparison between $\ell^2$ and $\ell^1$ Thank you very much!
Oct 6	accepted	My “wrong” comparison between $\ell^2$ and $\ell^1$