408 research outputs found
Irreducible weight modules over Witt algebras with infinite dimensional weight spaces
Let be an integer. In 1986, Shen defined a class of weight modules
over the Witt algebra for \a\in\C^d,
b\in\C, and an irreducible module over the special linear Lie algebra
\sl_d. In 1996, Eswara Rao determined the necessary and sufficient conditions
for these modules to be irreducible when is finite dimensional. In this
note, we will determine the necessary and sufficient conditions for all these
modules to be irreducible where is not necessarily finite
dimensional. Therefore we obtain a lot of irreducible -modules
with infinite dimensional weight spaces
Harish-Chandra modules over the \Q Heisenberg-Virasoro Algebra
In this paper, it is proved that all irreducible Harish-Chandra modules over
the \Q Heisenberg-Virasoro algebra are of intermediate series (all weight
spaces are 1-dimensional)
Collaborative socially responsible practices for improving the position of Chinese workers in global supply chains
In this paper we evaluate three projects with the participation of 40 supplier firms in several Chinese coastal provinces representing multi-stakeholder efforts to provide alternative channels through which workers can voice their concerns. The supplier firms took on these projects to reduce worker dissatisfaction and employee turnover. The projects fill an institutional void in employer–employee relations within Chinese supplier firms as they provide alternative channels for workers to voice their concerns. The role of civil society organisations focusing on labour interests was a crucial feature of the projects, through capacity-building for workers and by providing independence. The supplier firms and their workers have benefitted as firms take measures to enhance worker satisfaction, while the reduced employee turnover positively impacted firm performance. We propose that these collaborative socially responsible practices are a potential way to strengthen the positions of workers and supplier firms in global supply chain
Simple smooth modules over the superconformal current algebra
In this paper, we classify simple smooth modules over the superconformal
current algebra . More precisely, we first classify simple smooth
modules over the Heisenberg-Clifford algebra, and then prove that any simple
smooth -module is a tensor product of such modules for the super
Virasoro algebra and the Heisenberg-Clifford algebra, or an induced module from
a simple module over some finite-dimensional solvable Lie superalgebras. As a
byproduct, we provide characterizations for both simple highest weight -modules and simple Whittaker -modules. Additionally, we present
several examples of simple smooth -modules that are not tensor product
of modules over the super Virasoro algebra and the Heisenberg-Clifford algebra.Comment: Latex, 30pages, comments are welcome
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