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Abstract and Applied Analysis

Volume 2013 (2013), Article ID 373147, 8 pages

http://dx.doi.org/10.1155/2013/373147

Research Article

## The Intersection of Upper and Lower Semi-Browder Spectrum of Upper-Triangular Operator Matrices

^{1}School of Mathematics and Computer Science, Fujian Normal University, Fuzhou 350007, China^{2}School of Mathematics, Central South University, Changsha 410075, China

Received 22 January 2013; Accepted 3 August 2013

Academic Editor: Alberto Fiorenza

Copyright © 2013 Shifang Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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