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JOURNALS // Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica // Archive

Bul. Acad. Ştiinţe Repub. Mold. Mat., 2006 Number 2, Pages 69–74 (Mi basm98)

On an algebraic method in the study of integral equations with shift

Vasile Neaga

State University of Moldova, Chishinau, Moldova

Abstract: The work is centred on the sdudy of algebra $\mathfrak{A}$ generated by singular integral operators with shifts with continuous coefficients. We determine the set of maximal ideals of quotient algebra $\hat{\mathfrak A}$, $\hat{\mathfrak A}=\mathfrak{A}/\mathfrak{T}$, with respect to the ideal of compact operators. Prove that the bicompact of maximal ideals of $\hat{\mathfrak A}$ is isomorphic to the topological product $(\Gamma\times j)\times(\Gamma\times k)$, where $j=\pm 1$ and $k=\pm 1$. Necessary and sufficient condition are established for operators of $\mathfrak{A}$ to be noetherian and to admit equivalent regularization in space $L_p(\Gamma,\rho),$ regularizators for noetherian operators are constructed. The study is done in the space $L_{p}(\Gamma,\rho)$ with weight $\rho(t)=\prod\limits_{k=1}^{n}|t-t_{k}|^{\beta^{k}}$ and is based on the theory of Ghelfand [1] concerning Banach algebras.

Keywords and phrases: Banach algebras, noetherian singular operators, regularization of operator.

MSC: 45E05

Received: 25.05.2006

Language: English



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