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Crossed products by twisted partial actions and graded algebras
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008)
For a twisted partial action e of a group G on an (associative non-necessarily unital) algebra A over a commutative unital ring k, the crossed product A x(Theta) G is proved to be associative. Given a G-graded k-algebra B ...
Nil graded self-similar algebras
(EUROPEAN MATHEMATICAL SOC, 2010)
In [19], [24] we introduced a family of self-similar nil Lie algebras L over fields of prime characteristic p > 0 whose properties resemble those of Grigorchuk and Gupta-Sidki groups. The Lie algebra L is generated by two ...
Geostatistics in the presence of geological boundaries: Exploratory tools for contact analysis
(Elsevier, 2020)
Identification and categorization of geological, geotechnical, or geometallurgical domains is a common practice in the modeling of mineral deposits, in order to account for the controls exerted by categorical variables ...
Geochemical signatures of metasedimentary rocks of high-pressure granulite facies and their relation with partial melting: Carvalhos Klippe, Southern Brasilia Belt, Brazil
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012-09)
High-grade metasedimentary rocks can preserve geochemical signatures of their sedimentary protolith if significant melt extraction did not occur. Retrograde reaction textures provide the main evidence for trapped melt in ...
GRADE guidance 35 : update on rating imprecision for assessing contextualized certainty of evidence and making decisions
(2022-10)
Objectives: Grading of Recommendations Assessment, Development and Evaluation (GRADE) guidance to rate the certainty domain of imprecision is presently not fully operationalized for rating down by two levels and when ...
Graduações e identidades graduadas de álgebras de incidência
(Programa de Pós-Graduação em MatemáticaCentro de Ciências Exatas, 2021)
Effect of duodenal diversion on low-grade dysplasia in patients with Barrett's esophagus: Analysis of 37 patients
(2002)
It is well known that in patients with Barrett's esophagus (BE), even after antireflux surgery, intestinal metaplasia can progress to dysplasia or even adenocarcinoma. However, the opposite - that is regression of dysplastic ...