Results 61 to 70 of about 25,831 (144)
We use Lazard's universal $π$-ring to construct a variation of the $π$-typical ramified Witt vector functors, which we call the Lazardian Witt vector functor. We then use the Lazardian Witt vector functor to construct the universal residual perfection of a Lazardian algebra.
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Witt vectors, semirings, and total positivity [PDF]
, 2016 We extend the big and $p$-typical Witt vector functors from commutative rings to commutative semirings. In the case of the big Witt vectors, this is a repackaging of some standard facts about monomial and Schur positivity in the combinatorics of symmetric functions.
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Witt vector affine Springer fibers
We establish dimension formulas for the Witt vector affine Springer fibers associated to a reductive group over a mixed characteristic local field, under the assumption that the group is essentially tamely ramified and the residue characteristic is not bad. Besides the discriminant valuations that show up in classical works on the usual affine Springer
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Witt vectors with coefficients and TR
Proceedings of the London Mathematical SocietyAbstractWe give a new construction of ‐typical Witt vectors with coefficients in terms of ghost maps and show that this construction is isomorphic to the one defined in terms of formal power series from the authors' previous paper. We show that our construction recovers Kaledin's polynomial Witt vectors in the case of vector spaces over a perfect field
Emanuele Dotto +3 more
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Coexistence in two-species competition with delayed maturation. [PDF]
J Math Biol, 2023 El-Hachem M, Beeton NJ.
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Aperiodic rings, necklace rings and Witt vectors—II
Proceedings Mathematical Sciences, 1989 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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