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Showing 1 to 2 of 2 for “"Categorical equivalences"”.
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The Absolute Galois Group of the Rationals, Grothendieck's Dessin D'Enfants, and Galois Invariants
… compact topological surfaces. Through these categorical equivalences, one obtains a highly non-trivial action of the absolute Galois group of the rationals on a collection of relatively simple combinatorial objects. We then analyze recent work by Girondo, Gonzalez-Diez, Hidalgo, and Jones …
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Categories of Residuated Lattices
<p>We present dual variants of two algebraic constructions of certain classes of residuated lattices: The Galatos-Raftery construction of Sugihara monoids and their bounded expansions, and the Aguzzoli-Flaminio-Ugolini quadruples construction of srDL-algebras. Our dual presentation of these …