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Endomorphism ring of a generic elliptic curves in positive characteristic

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Joe Silverman

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Are limits of compact leaves compact?

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Martin M. W.

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A question on Euler's totient function

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calc ll

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Relative De Rham cohomologies

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AG learner

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Can $2^n\pm n$ with $n>2$ be a triangular number?

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Category theory sans (much) motivation?

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Qiaochu Yuan

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What integers can be represented as $\textrm{lcm}(a, b) + \textrm{lcm}(b, c) + \textrm{lcm}(c, a)$?

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Zerox

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In what sense does the sentence $\operatorname{con}(\mathsf{PA})$ "say" that $\mathsf{PA}$ is consistent?

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In what sense does the sentence $\operatorname{con}(\mathsf{PA})$ "say" that $\mathsf{PA}$ is consistent?

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Peter LeFanu Lumsdaine

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Finding a nilpotent, infinite, f.g., virtually abelian, irreducible integer matrix group

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David A. Craven

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Finding a nilpotent, infinite, f.g., virtually abelian, irreducible integer matrix group

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YCor

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Examples of concrete games to apply Borel determinacy to

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Contractible subcomplex containing 1-skeleton?

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Finding a nilpotent, infinite, f.g., virtually abelian, irreducible integer matrix group

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YCor

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What is an example of a colimit-dense generator which is not dense?

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Situation with Artemov's paper?

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Proofs that require fundamentally new ways of thinking

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Proofs that require fundamentally new ways of thinking

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Manya

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triangulated vs. dg/A-infinity

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Situation with Artemov's paper?

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Timothy Chow

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Does there exist a Bousfield localization of the category of spectra which makes the sphere unbounded below?

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Achim Krause

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Algorithm for computing whether a cubic field is monogenic?

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What is the $\inf$ and $\sup$ of the area of quadrilateral given its sides length?

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Corentin B

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What is known about finite dimensional modules over the nilCoxeter algebra?

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Dave Benson

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triangulated vs. dg/A-infinity

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Can distribution theory be developed Riemann-free?

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Peter Michor

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Examples of concrete games to apply Borel determinacy to

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Separating Gamma in two independent functions

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Riesz–Markov–Kakutani representation theorem for compact non-Hausdorff spaces

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What are some good examples of spectral sequences which degenerate after the first nontrivial differential?

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What are some good examples of spectral sequences which degenerate after the first nontrivial differential?

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Are Diagonally dominant Tridiagonal matrices diagonalizable?

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Transitivity of automorphism group of smooth manifolds

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Examples of statements that are valid in every spatial topos

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When to postpone a proof?

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Can a corollary follow a conjecture?

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Integrality of a quotient of Fermat numbers

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GH from MO

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Factoring through projective modules is an equivalence relation

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Equivalence between geometric theories and frames internal to the free topos

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Localic or topos-theoretic definition of $\operatorname{Spec}$

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Why is it not possible to define the necessity operator internally $\Box: \Omega \to \Omega$ in a topos?

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Dolbeault cohomology of Hopf manifolds

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High multiplicity eigenvalue implies symmetry?

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What is the $\inf$ and $\sup$ of the area of quadrilateral given its sides length?

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Do the algebras for a $\infty$-monad form a stable $\infty$-category?

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Is the Gödel universe Wick rotatable?

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Small categories and completeness

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Finding $\sum_i x_i$ given $\{\sum_i x_i^{2n}\}_{n\in \mathbb{N}}$

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Conjectures in the representation theory of the symmetric group

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What is the interface between functional analysis and algebraic geometry?

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Prove these are not surface groups

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Commutator subgroup of $\mathrm{GL}_n(R)$ when $R$ is a PID with unity

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An $L^0$ Khintchine inequality

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Nicer expression for 2.1369288...?

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What are the advantages and disadvantages of the Moore method?

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Groups associated with infinite dimensional Lie algebras

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Robert Bryant

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Why does Weihrauch reducibility make use of multi-functions?

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What are applications of asymptotic freeness of random matrices?

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