Homomorphisms of Approximation Spaces

Zhaohao Wang; Lan Shu; Xiuyong Ding

doi:10.1155/2012/185357

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Home > Journals > J. Appl. Math. > Volume 2012 > Article

2012 Homomorphisms of Approximation Spaces

Zhaohao Wang, Lan Shu, Xiuyong Ding

J. Appl. Math. 2012: 1-18 (2012). DOI: 10.1155/2012/185357

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Abstract

The notion of the homomorphism of approximation spaces is introduced. Some properties of homomorphism are investigated, and some characterizations of homomorphism are given. Furthermore, the notion of approximation subspace of approximation spaces is introduced. The relations between approximation subspaces and homomorphisms are studied.