SPECTRUM AND COMPACTNESS OF THE CESARO OPERATOR ON WEIGHTED lp SPACES

被引:15
|
作者
Albanese, Angela A. [1 ]
Bonet, Jose [2 ]
Ricker, Werner J. [3 ]
机构
[1] Univ Salento, Dipartimento Matemat & Fis, I-73100 Lecce, Italy
[2] Univ Politecn Valencia, IUMPA, E-46071 Valencia, Spain
[3] Katholische Univ Eichstatt Ingolstadt, Math Geogr Fak, D-85072 Eichstatt, Germany
关键词
Cesaro operator; weighted l(p) space; spectrum; compact operator;
D O I
10.1017/S1446788715000221
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
An investigation is made of the continuity, the compactness and the spectrum of the Cesaro operator C when acting on the weighted Banach sequence spaces l(p)(w), 1 < p < infinity, for a positive decreasing weight w, thereby extending known results for C when acting on the classical spaces l(p). New features arise in the weighted setting (for example, existence of eigenvalues, compactness) which are not present in l(p).
引用
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页码:287 / 314
页数:28
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