Newest Questions - Mathematics Stack Exchange
2 天之前 · Mathematics Stack Exchange is a platform for asking and answering questions on mathematics at all levels.
(Un-)Countable union of open sets - Mathematics Stack Exchange
A remark: regardless of whether it is true that an infinite union or intersection of open sets is open, when you have a property that holds for every finite collection of sets (in this case, the union or intersection …
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Como calcular el area de la superficie de un huevo con calculo
Estoy haciendo mi reciente evaluación interna del IB Matemáticas HL y mi tema es cómo calcular el área de superficie de un huevo . Quiero aplicar el cálculo conocimiento en esta pregunta, pero mi …
Intuitive proof that $U(n)$ isn't isomorphic to $SU(n) \\times S^1$
2016年1月5日 · and what you'd really like is for an isomorphism U(n) ≅ SU(n) × U(1) U (n) ≅ S U (n) × U (1) to respect the structure of this short exact sequence. (If there were some random isomorphism …
Mnemonic for Integration by Parts formula? - Mathematics Stack …
2018年11月11日 · The Integration by Parts formula may be stated as: $$\\int uv' = uv - \\int u'v.$$ I wonder if anyone has a clever mnemonic for the above formula. What I often do is to derive it from …
functional analysis - Where can I find the paper "Un théorème de ...
2015年11月12日 · J. P. Aubin, Un théorème de compacité, C.R. Acad. Sc. Paris, 256 (1963), pp. 5042–5044. It seems this paper is the origin of the "famous" Aubin–Lions lemma. This lemma is …
probability - Suppose that $U1, U2, ..., Un$ are iid $U (0,1)$ and $Sn ...
2022年11月2日 · I meant it to read: P (S_1 ≤ t) P (S_n ≤t). The product of those probabilities given the assumption is true.
modular arithmetic - Prove that that $U (n)$ is an abelian group ...
Prove that that U(n) U (n), which is the set of all numbers relatively prime to n n that are greater than or equal to one or less than or equal to n − 1 n 1 is an Abelian group. My thought process: for a, b ∈ …
optimization - Minimizing KL-divergence against un-normalized ...
2024年6月10日 · Minimizing KL-divergence against un-normalized probability distribution Ask Question Asked 1 year, 7 months ago Modified 1 year, 7 months ago