Results 171 to 180 of about 5,483 (201)

Determinants of tidal recruitment/derecruitment assessed by electrical impedance tomography in spontaneously breathing acute respiratory distress syndrome patients. [PDF]

open access: yesAm J Respir Crit Care Med
Perez J   +11 more
europepmc   +1 more source

Affine PBW bases and affine MV polytopes [PDF]

open access: yesSelecta Mathematica, New Series, 2018
We show how affine PBW bases can be used to construct affine MV polytopes, and that the resulting objects agree with the affine MV polytopes recently constructed using either preprojective algebras or KLR algebras.
Peter Tingley, Dinakar Muthiah
exaly   +5 more sources
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Derivations of Skew PBW-Extensions

Communications in Mathematics and Statistics, 2015
Let \(A\) be a ring with \(1\) and \(R\) a subring. Then \(A\) is called a skew PBW-extension of \(R\) if (1) there exists a finite set of elements \(x_1,\ldots,x_n\in A\) such that \(A\) is a left \(R\)-free module with the basis: \(\{x^\alpha=(x_1^{\alpha_1},\ldots,x_n^{\alpha_n})\mid(\alpha_1,\ldots,\alpha_n)\in(\mathbb N\cup 0)^n\}\), (2) there ...
Vyacheslav Artamonov
exaly   +5 more sources

Homological Computations in PBW Modules

Algebras and Representation Theory, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
José Gómez-Torrecillas   +2 more
exaly   +3 more sources

Skew PBW Extensions

2020
Skew PBW extensions include wellknown classes of Ore algebras, operator algebras and also a lot of quantum rings and algebras. The universal property that characterizes these objects and its existence will be studied.
William Fajardo   +5 more
openaire   +2 more sources

An elimination lemma for algebras with PBW bases [PDF]

open access: yesCommunications in Algebra, 2018
Let $K$ be a field, and $A=K[a_1,\ldots ,a_n]$ a finitely generated $K$-algebra with the PBW $K$-basis ${\cal B}=\{a_{1}^{α_1}\cdots a_{n}^{α_n}~|~(α_1,\ldots ,α_n)\in\mathbb{N}^n\}$.
exaly   +3 more sources

Nakayama automorphisms of PBW deformations and Hopf actions [PDF]

open access: yesScience China Mathematics, 2015
An associative unital algebra \(A\) is skew Calabi-Yau if \(A\) has a finite projective resolution as a left \(A^e\)-module and there exists a Nakayama automorphism \(\mu\) of \(A\) such that \(\mathrm{Ext}_{A^e}^i(A,A^e)\simeq{^1A^\mu}\) if \(i=d\), and it vanishes otherwise.
Yuan Shen
exaly   +3 more sources

PBW Degeneration: Algebra, Geometry, and Combinatorics

Journal of Mathematical Sciences, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

PBW deformations of braided products

open access: yesJournal of Algebra, 2018
We present new examples of deformations of smash product algebras that arise from Hopf algebra actions on pairs of module algebras. These examples involve module algebras that are Koszul, in which case a PBW theorem we established previously applies. Our construction generalizes several `double' constructions appearing in the literature, including Weyl
Sarah Witherspoon
exaly   +5 more sources

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