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the class of d(t)–operators on hilbert space
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نویسنده
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abdulwahid elaf s.
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منبع
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international journal of nonlinear analysis and applications - 2021 - دوره : 12 - شماره : Special Is - صفحه:1293 -1298
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چکیده
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The purpose of this paper is to introduce a new class operator on separable hilbert space. the operator t ∈ b(h) is called d(t)-operator if there exist u ∈ b(h), u≠0, i such that t*tu = ut*t, where t* adjoint operator of t. then, some main properties of the class of d(t)-operator are studied in this research.
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کلیدواژه
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d(t)-operator ,quasi-normal operator ,the sepctrum of normal oprator ,hilbert space
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آدرس
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tikrit university, college of education for women, department of mathematics, iraq
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پست الکترونیکی
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elafs.math@tu.edu.iq
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Authors
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