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Q&A for professional mathematicians
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Let $A$ be a $C^*$-algebra and $(a_{ij}) \in M_n(A)$ be a positive matrix. Does there exist a constant $C \ge 0$ (not depending on the $a_{ij}$) such that $$\lVert(a_{ij})\rVert \le C \Bigl\lVert\s...
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Let $p$ be a prime number, $G$ a pro-$p$ group, and $m$ a positive integer. We say that $H(G,m)$ holds if there is a function of $m$ that is an upper bound for the derived length of every finite quotient of $G$ that admits a fixed point free automorphism...
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How can the area of three intersecting circles be calculated when in the form of...
Is there an equation to calculate the area of three intersecting circles that do not intersect at a single point? Such as the three circles that are used to form a triquetra. How can this be accomplished?
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Correspondence Local Systems & $\Bbb Z \pi_1(A)$-modules & Compatibility issues
Let $X$ be a topological space and $G \subset \text{Aut}(X)_{\text{top}}$ a finite group acting faithfully on $X$ "nicely enough", where "nice" = we can form categorical quotient $X/G$ and canonical map $X \to X/G$ is a regular cover with fibre $G$,...
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What literature can I read about the Janibekov effect and the intermediate axis ...
I have been studying mathematics for 2 years, and I have already read Terence Tao's publication. Please suggest books on related topics, such as Euler's equations, mathematical modeling, mathematical physics, and more. This is my first question on the...
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