Results 1 to 10 of about 25,831 (144)
Noncommutative symmetric functions associated with a code, Lazard elimination, and Witt vectors [PDF]
Discrete Mathematics & Theoretical Computer Science, 2007 The construction of the universal ring of Witt vectors is related to Lazard's factorizations of free monoids by means of a noncommutative analogue. This is done by associating to a code a specialization of noncommutative symmetric functions.
Jean-Gabriel Luque, Jean-Yves Thibon
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Almost purity and overconvergent Witt vectors [PDF]
Journal of Algebra, 2014 In a previous paper, we stated a general almost purity theorem in the style of Faltings: if R is a ring for which the Frobenius maps on finite p-typical Witt vectors over R are surjective, then the integral closure of R in a finite \'etale extension of R[
Davis, Christopher, Kedlaya, Kiran S.
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Boolean Witt vectors and an integral Edrei-Thoma theorem [PDF]
Selecta Mathematica, New Series, 2015 A subtraction-free definition of the big Witt vector construction was recently given by the first author. This allows one to define the big Witt vectors of any semiring.
Borger, James, Grinberg, Darij
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Greenberg algebras and ramified Witt vectors [PDF]
Journal de théorie des nombres de Bordeaux, 2020 Let O be a complete discrete valuation ring of mixed characteristic and with finite residue field k. We study a natural morphism between the Greenberg algebra of O and the special fiber of the scheme of ramified Witt vectors over O.
Bertapelle, Alessandra +1 more
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On the Witt vector Frobenius [PDF]
Proceedings of the American Mathematical Society, 2014 We study the kernel and cokernel of the Frobenius map on the $p$-typical Witt vectors of a commutative ring, not necessarily of characteristic $p$. We give some equivalent conditions to surjectivity of the Frobenus map on both finite and infinite length ...
Davis, Christopher, Kedlaya, Kiran S.
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The basic geometry of Witt vectors, II: Spaces [PDF]
Mathematische Annalen, 2015 This is an account of the algebraic geometry of Witt vectors and arithmetic jet spaces. The usual, "p-typical" Witt vectors of p-adic schemes of finite type are already reasonably well understood.
Borger, James
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The alternating presentation of Uq(gl2ˆ) from Freidel-Maillet algebras
Nuclear Physics B, 2021 An infinite dimensional algebra denoted A¯q that is isomorphic to a central extension of Uq+ - the positive part of Uq(sl2ˆ) - has been recently proposed by Paul Terwilliger.
Pascal Baseilhac
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Frontiers in Immunology, 2021 VITT is a rare, life-threatening syndrome characterized by thrombotic symptoms in combination with thrombocytopenia, which may occur in individuals receiving the first administration of adenoviral non replicating vectors (AVV) anti Covid19 vaccines ...
Bruno Azzarone +3 more
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The basic geometry of Witt vectors, I: The affine case [PDF]
, 2015 We give a concrete description of the category of etale algebras over the ring of Witt vectors of a given finite length with entries in an arbitrary ring.
Borger, James
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Irreducible modules with highest weight vectors over modular Witt and special Lie superalgebras
Open Mathematics, 2019 Let 𝔽 be an arbitrary field of characteristic p > 2. In this paper we study irreducible modules with highest weight vectors over Witt and special Lie superalgebras of 𝔽.
Zheng Keli, Zhang Yongzheng
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