TY - JOUR AU - Yuan, Jiangtao AU - Gao, Zongsheng PY - 2007 DA - 2007/06/18 TI - Spectrum of ClassOperators JO - Journal of Inequalities and Applications SP - 027195 VL - 2007 IS - 1 AB - This paper discusses some spectral properties of classoperators for,,, and. It is shown that ifis a classoperator, then the Riesz idempotentofwith respect to each nonzero isolated point spectrumis selfadjoint and. Afterwards, we prove that every classoperator has SVEP and property, and Weyl's theorem holds forwhen. SN - 1029-242X UR - https://doi.org/10.1155/2007/27195 DO - 10.1155/2007/27195 ID - Yuan2007 ER -