Closability of Module σ−Derivatoins
Let σ be a linear mapping from a dense subalgebra A of a Banach algebra B into B. In this note, we study the closability of a module σ− derivation δ from A into a B− bimodule M. Applying the notions of torsion-free modules and essential ideals, we present several results concerning the closabili...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Islamic Azad University
2012-03-01
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Series: | Journal of Mathematical Extension |
Online Access: | http://ijmex.com/index.php/ijmex/article/view/97 |