Results 1 to 10 of about 1,467 (118)
Enveloping Actions for Partial Hopf Actions [PDF]
Communications in Algebra, 2010 Motivated by partial group actions on unital algebras, in this article we extend many results obtained by Exel and Dokuchaev to the context of partial actions of Hopf algebras, according to Caenepeel and Jansen. First, we generalize the theorem about the existence of an enveloping action, also known as the globalization theorem.
Eliezer Batista
exaly +3 more sources
Uniform enveloping semigroupoids for groupoid actions
Journal D'Analyse Mathematique, 2022 We establish new characterizations for (pseudo)isometric extensions of topological dynamical systems. For such extensions, we also extend results about relatively invariant measures and Fourier analysis that were previously only known in the minimal case to a significantly larger class, including all transitive systems.
Henrik Kreidler
exaly +5 more sources
Enveloping actions and Takai duality for partial actions
Journal of Functional Analysis, 2003 We show that any continuous partial action on a topological space has a unique enveloping action, i.e. it is the restriction of a global action. In the case of C^*-algebras we prove that any partial action has an enveloping action up to Morita equivalence.
Fernando Abadie
exaly +3 more sources
The complexity of architectural and anthropological dynamics in womb-tomb structures: An interdisciplinary investigation. [PDF]
PLoS ONEOur research investigates a collection of distinctive case studies identified as 'womb-tomb sacred structures,' scattered throughout the region colloquially referred to as the Holy Land.
Nurit Stadler, Shlomit Flint
doaj +2 more sources
Twisted Products: Enveloping Actions and Equivariant Absolute Neighborhood Extensors
Bulletin of the Brazilian Mathematical SocietyThe classical notion of twisted product is studied in the context of partial actions, in particular, we show that the globalization of a partial action is a twisted product. In addition, we establish conditions for the metrizability of twisted products, and some homotopy and categorical properties are proved.
Hector Pinedo
exaly +4 more sources
Enveloping actions and duality theorems for partial twisted smash products
Filomat, 2020 In this paper, we first generalize the theorem about the existence of an enveloping action to a partial twisted smash product. Then we construct a Morita context between the partial twisted smash product and the twisted smash product related to the enveloping action.
Shuangjian Guo +2 more
exaly +4 more sources
Braid group actions on coideal subalgebras of quantized enveloping algebras
Journal of Algebra, 2011 22 ...
Stefan Kolb
exaly +4 more sources
A Rigidity Theorem for Finite Group Actions on Enveloping Algebras of Semisimple Lie Algebras
Advances in Mathematics, 1995 Let \(G\) be a finite group of automorphisms acting (not necessarily linearly) on the enveloping algebra \(U ({\mathfrak g})\) of a semisimple Lie algebra \({\mathfrak g}\) over an algebraically closed field \(k\) of characteristic zero. The main result of this paper is that if the fixed subalgebra \(U^ G\) is \(k\)-isomorphic to any enveloping algebra,
Alev, J., Polo, P.
exaly +2 more sources
The Spiritual Aura: A Study of the Philosophy of Balance [PDF]
Wadī Al-Nīl Lil Dirāsāt wa Al-Buẖūṯ Al-Insāniyyaẗ wa Al-Iğtimāʿiyyaẗ wa Al-Tarbawiyyaẗ, 2023 This paper delves into the intricate relationship between spiritual energy, psychological equilibrium, and divine existence within the context of human life.
Magdy Mohamed Ibrahim
doaj +1 more source
Laser action in stellar envelopes [PDF]
Astrophysics and Space Science, 1976 It is shown that in high-temperature stars in which high speed mass loss is occurring, the rapidly recombining plasma in the stellar envelope can act as an amplifying medium. Model calculations for laser action in Heii λ4686, using the collisional-radiative model, are presented.
Y. P. Varshni, C. S. Lam
openaire +2 more sources