Algebra
Hilbert’s 17th problem in free skew fields
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- 06 September 2021, e61
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Theoretical Computer Science
An incompressibility theorem for automatic complexity
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- 10 September 2021, e62
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Algebra
Extensions of homomorphisms between localities
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- 14 September 2021, e63
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Algebraic and Complex Geometry
Brauer groups of moduli of hyperelliptic curves via cohomological invariants
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- 17 September 2021, e64
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Theoretical Computer Science
Three candidate plurality is stablest for small correlations
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- 28 September 2021, e65
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Algebra
Cluster Structures on Double Bott–Samelson Cells
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- 29 September 2021, e66
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Defining relations of quantum symmetric pair coideal subalgebras
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- 05 October 2021, e67
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Differential Equations
An algebraic treatment of the Askey biorthogonal polynomials on the unit circle
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- 07 October 2021, e68
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Analysis
Nonvanishing for cubic L-functions
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- 11 October 2021, e69
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Discrete Mathematics
Geometric vertex decomposition and liaison
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- 19 October 2021, e70
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Algebraic and Complex Geometry
A homotopy exact sequence for overconvergent isocrystals
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- 25 October 2021, e71
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Number Theory
Squarefree Integers in Arithmetic Progressions to Smooth Moduli
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- 27 October 2021, e72
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Discrete Mathematics
Spaces of Lorentzian and real stable polynomials are Euclidean balls
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- 12 November 2021, e73
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Mathematical Physics
A new second-order upper bound for the ground state energy of dilute Bose gases
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- 18 November 2021, e74
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Algebraic and Complex Geometry
On the Tits–Weiss conjecture and the Kneser–Tits conjecture for $\mathrm {E}^{78}_{7,1}$ and $\mathrm {E}^{78}_{8,2}$ (With an Appendix by R. M. Weiss)
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- 23 November 2021, e75
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Discrete Mathematics
Topology of random $2$-dimensional cubical complexes
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- 29 November 2021, e76
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Differential Geometry and Geometric Analysis
From curves to currents
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- 29 November 2021, e77
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Algebra
Arquile Varieties – Varieties Consisting of Power Series in a Single Variable
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- 01 December 2021, e78
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The commutative nonassociative algebra of metric curvature tensors
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- 09 December 2021, e79
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Number Theory
Finiteness properties of the category of mod p representations of ${\textrm {GL}}_2 (\mathbb {Q}_{p})$
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- 09 December 2021, e80
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