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Mathoverflow.net news digest

  • 0 days

    Can a pro-$p$ group be recovered from its group cohomology?

    Let $G$ be a pro-$p$ group. Consider the graded algebras$$H^*(G,\mathbb{Z}/p^n\mathbb{Z})$$.Does the structure of these graded algebras determine $G$ up to isomorphism? Feel free to add additional information like the canonical maps $H^*(G,\mathbb{Z...

  • 0 days

    Seeking arXiv endorsement for math-ph. CO paper on YM mass gap resolution

    I'm an independent researcher from Poland submitting a rigorous resolution of the Clay YM mass gap via global RG funnel, OS reconstruction, and full area law (upper/lower via 't Hooft/Peierls) to arXiv math-ph.CO.
    As a new user, I need endorsement (code: DNG4WT). Paper abstract:...

  • 0 days

    Cases $n=7,8$ of a conjecture on semigroups

    I would like to prove cases $n=7,8$ of this conjecture (general question asked here): given any commutative semigroup $S$ of order $n \ge 1$, there exist $a, b \in S$ with $a \ne b$, an integer $m \ge \lfloor (n-1)/2 \rfloor$, an $m$-element subset ...

  • 14 years

    Examples in mirror symmetry that can be understood

    It seems to me, that a typical science often has simple and important examples whose formulation can be understood (or at least there are some outcomes that can be understood). So if we consider mirror symmetry as science, what are some examples there...

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