Spectrum and essential spectrum of linear combinations of composition operators on the Hardy space H2

نویسندگان

M. Farzi Haromi Ph.D. Student, Department of Mathematics, Shiraz University of Technology, Shiraz, Iran.

M. Fatehi Professor, Department of Mathematics, Shiraz Branch, Islamic Azad University, Shiraz, Iran.

M. Haji Shaabani Professor, Department of Mathematics, Shiraz University of Technology, Shiraz, Iran.

چکیده مقاله:

Let -----. For an analytic self-map --- of --- , Let --- be the composition operator with composite map --- so that ----. Let --- be a bounded analytic function on --- . The weighted composition operator --- is defined by --- . Suppose that --- is the Hardy space, consisting of all analytic functions defined on --- , whose Maclaurin cofficients are square summable. .....

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