Results 1 to 10 of about 73,078 (105)

Noncommutative symmetric functions associated with a code, Lazard elimination, and Witt vectors [PDF]

open access: yesDiscrete 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
doaj   +11 more sources

Euclidean-Lorentzian Dichotomy and Algebraic Causality in Finite Ring Continuum [PDF]

open access: yesEntropy
We present a concise and self-contained extension of the Finite Ring Continuum (FRC) program, showing that symmetry-complete prime shells Fp with p=4t+1 exhibit a fundamental Euclidean-Lorentzian dichotomy.
Yosef Akhtman
doaj   +2 more sources

A Survey on Some Algebraic Characterizations of Hilbert’s Nullstellensatz for Non-commutative Rings of Polynomial Type

open access: yesIngeniería y Ciencia, 2020
In this paper we present a survey of some algebraic characterizations of Hilbert’s Nullstellensatz for non-commutative rings of polynomial type. Using several results established in the literature, we obtain a version of this theorem for the skew ...
Armando Reyes   +1 more
doaj   +1 more source

KO-Rings of Full Flag Varieties [PDF]

open access: yes, 2014
We present type-independent computations of the KO-groups of full flag varieties, i.e. of quotient spaces G/T of compact Lie groups by their maximal tori. Our main tool is the identification of the Witt ring, a quotient of the KO-ring, of these varieties
Zibrowius, Marcus
core   +1 more source

Witt rings of quadratically presentable fields [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2020
This paper introduces an approach to the axiomatic theory of quadratic forms based on {tmem{presentable}} partially ordered sets, that is partially ordered sets subject to additional conditions which amount to a strong form of local presentability.
Pawel Gladki, Krzysztof Worytkiewicz
doaj  

The basic geometry of Witt vectors, I: The affine case [PDF]

open access: yes, 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
core   +1 more source

The basic geometry of Witt vectors, II: Spaces [PDF]

open access: yes, 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
core   +3 more sources

Graded radical W type Lie algebras I

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We get a new ℤ-graded Witt type simple Lie algebra using a generalized polynomial ring which is the radical extension of the polynomial ring F[x] with the exponential function ex.
Ki-Bong Nam
doaj   +1 more source

Witt Vector Rings and the Relative de Rham Witt Complex [PDF]

open access: yes, 2015
In this paper we develop a novel approach to Witt vector rings and to the (relative) de Rham Witt complex. We do this in the generality of arbitrary commutative algebras and arbitrary truncation sets.
Cuntz, Joachim, Deninger, Christopher
core   +1 more source

Annihilating polynomials for quadratic forms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
This is a short survey of the main known results concerning annihilating polynomials for the Witt ring of quadratic forms over a field.
David W. Lewis
doaj   +1 more source

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