Results 1 to 10 of about 32,440 (143)
Electrodermal Activity Biofeedback Alters Evolving Functional Brain Networks in People With Epilepsy, but in a Non-specific Manner [PDF]
Frontiers in Neuroscience, 2022 There is evidence that biofeedback of electrodermal activity (EDA) can reduce seizure frequency in people with epilepsy. Prior studies have linked EDA biofeedback to a diffuse brain activation as a potential functional mechanism.
Sophia Schach +12 more
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Gorenstein Witt Rings II [PDF]
Canadian Journal of Mathematics, 1997 The abstract Witt rings which are Gorenstein have been classified when the dimension is one and the classification problem for those of dimension zero has been reduced to the case of socle degree three.
Fitzgerald, Robert W.
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Proceedings of the American Mathematical Society, 1997 An abstract Witt ring \((R,G,q)\) is said to be \(k\)-regular if for all \(x \in G\), \(x \neq 1\), the value sets of binary forms satisfy \(|D(1,-x)|= k\). The existence of \(k\)-regular Witt rings is known only for \(k = 2, g/2, g\), where \(g = |G|\). A Witt ring with \(2 < k < g/2\) is said to be exceptional.
Fitzgerald, Robert W.
core +5 more sources
Chow-Witt rings of Grassmannians
Algebraic & Geometric Topology, 2020 We complement our previous computation of the Chow-Witt rings of classifying spaces of special linear groups by an analogous computation for the general linear groups. This case involves discussion of non-trivial dualities. The computation proceeds along
Wendt, Matthias
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Witt Vector Rings and the Relative de Rham Witt Complex [PDF]
Journal of Algebra, 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
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Witt Rings of Higher Degree Forms [PDF]
Communications in Algebra, 1988 (1988). Witt rings of higher degree forms. Communications in Algebra: Vol. 16, No. 6, pp. 1275-1313.
Harrison, D. K., Pareigis, Bodo
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Ingeniería 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
Formalizing the ring of Witt vectors [PDF]
Proceedings of the 10th ACM SIGPLAN International Conference on Certified Programs and Proofs, 2021 The ring of Witt vectors $\mathbb{W} R$ over a base ring $R$ is an important tool in algebraic number theory and lies at the foundations of modern $p$-adic Hodge theory. $\mathbb{W} R$ has the interesting property that it constructs a ring of characteristic $0$ out of a ring of characteristic $p > 1$, and it can be used more specifically to ...
Johan Commelin, Robert Y. Lewis
openaire +2 more sources
Witt rings of quadratically presentable fields [PDF]
Categories 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
Euler class groups, and the homology of elementary and special linear groups [PDF]
, 2016 We prove homology stability for elementary and special linear groups over rings with many units improving known stability ranges. Our result implies stability for unstable Quillen K-groups and proves a conjecture of Bass. For commutative local rings with
Schlichting, Marco
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