Results 1 to 10 of about 133 (132)

Object-unital groupoid graded rings, crossed products and separability

, 2021
We extend the classical construction by Noether of crossed product algebras, defined by finite Galois field extensions, to cover the case of separable (but not necessarily finite or normal) field extensions. This leads us naturally to consider non-unital
Pinedo, Hector,, Cala, Juan,, Lundström, Patrik,   +2 more
core   +1 more source

Ambiskew Hopf algebras [PDF]

, 2013
Necessary and sufficient conditions are obtained for an ambiskew polynomial algebra A over a Hopf k-algebra R to possess the structure of a Hopf algebra extending that of R, in which the added variables X+ and X- are skew primitive.
Brown, K.A., Brown, K., Macauley, M.
core   +1 more source

Problema de cancelación de Zariski para extenciones P BW torcidas

, 2020
A special question for noncommutative algebras is Zariski cancellation problem. In this thesis we establish cancellation for some special classes of algebras such as skew PBW extensions, some Artin--Schelter regular algebras and universal enveloping ...
Venegas Ramírez, Helbert Javier
core   +1 more source

Maximal graded orders over crystalline graded rings

, 2010
Crystalline graded rings are generalizations of certain classes of rings like generalized twisted group rings, generalized Weyl algebras, and generalized skew crossed products.
Tim Neijens, Van Oystaeyen, Freddy, Freddy Van Oystaeyen, Neijens, Tim   +3 more
core   +1 more source

Simple semigroup graded rings

, 2014
We show that if R is a, not necessarily unital, ring graded by a semigroup G equipped with an idempotent e such that G is cancellative at e, the nonzero elements of eGe form a hypercentral group and R-e has a nonzero idempotent f, then R is simple if and
Oinert, Johan,, Johan Öinert, Öinert, Johan, Nystedt, Patrik,, Nystedt, Patrik, Patrik Nystedt   +5 more
core   +1 more source

Synthesis and Stereodynamic and Emission Properties of Dissymmetric Bis-Aryl Carbazole Boranes and Identification of a CPL-Active B-C Atropisomeric Compound. [PDF]

J Org Chem, 2023
Pecorari D, Giuliani E, Mazzanti A, Stagni S, Fiorini V, Vigarani G, Zinna F, Pescitelli G, Mancinelli M.   +8 more
europepmc   +1 more source

Protonation of Dppbz- and Binap-Ligated Rhodathiaboranes Yielding Hydron, Hydride, and Hydrogen Exchange. [PDF]

Inorg Chem
Vidondo J, Urdániz L, Sanz Miguel PJ, Rodríguez R, Macías R.   +4 more
europepmc   +1 more source

Supplement. [PDF]

J Athl Train, 2018
europepmc   +1 more source

ECR 2016 Book of Abstracts - B - Scientific Sessions and Clinical Trials in Radiology. [PDF]

Insights Imaging, 2016
europepmc   +1 more source

Abstracts from the 35th Annual Meeting of the Society of General Internal Medicine. May 9-12, 2012. Orlando, Florida, USA. [PDF]

J Gen Intern Med, 2012
europepmc   +1 more source