Abstract
In this paper we study an integral operator with involution. We solve the problem on the exact inversion of this operator, we obtain and study the integro-differential system for the Fredholm resolvent and, finally, we prove the theorem on the equiconvergence of expansions in eigenfunctions and associated functions, in the usual trigonometric system.
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References
Ch. Babbage, “An Essay Towards the Calculus of Functions,” Philosophical Transactions of the Royal Society of London 11, 179–226 (1816).
A. A. Andreev, “Analogs of Classical Boundary-Value Problems for One Differential Equation of the Second Order with Deviating Argument,” Differents. Uravneniya 40(5), 1126–1128 (2004).
Ch. G. Dankl, “Differential-Difference Operators Associated to Reflection Groups,” Trans. Amer. Math. Soc. 311(1), 167–183 (1989).
S. S. Platonov, “Expansion in Eigenfunctions for Certain Functional Differential Operators,” Petrozavodsk Gos. Univ., Ser. Mat., No. 11, 15–35 (2004).
A. P. Khromov, “An Analog of the Jordan-Dirichlet Theorem for Expansions in Eigenfunctions of a Differential-Difference Operator with Integral Boundary Condition,” Dokl. Phys., No. 4, 80–87 (2004).
A. P. Khromov, “Inversion of Integral Operators with Kernels Discontinuous at Diagonals,” Matem. Zametki 64(6), 932–949 (1998).
V. V. Kornev and A. P. Khromov, “The Equiconvergence of Expansions in Eigenfunctions of Integral Operators with Kernels, whose Derivatives Admit Discontinuities at Diagonals,” Matem. Sborn. 192(10), 33–50 (2001).
V. V. Kornev and A. P. Khromov, “The Absolute Convergence of Expansions in Eigenfunctions of an Integral Operator with a Variable Limit of Integration,” Izv. Ross. Akad. Nauk, Ser. Mat. 69(4), 59–74 (2005).
V. P. Kurdyumov and A. P. Khromov, “The Riesz Bases of Eigenfunctions of an Integral Operator with a Variable Limit of Integration,” Matem. Zametki 76(1), 97–110 (2004).
L. P. Belousova, “The Theorem on the Equiconvergence of Spectral Expansions of Two Integral Operators,” in The 10th Saratov Winter Workshop, Sovremenn. Problemy Teorii Funktsii i Ikh Prilozh., (Saratov, 2000), P. 17.
I. M. Rapoport, Several Asymptotic Methods in the Theory of Differential Equations (Akad. Nauk USSR, Kiev, 1954) [in Russian].
N. K. Bari, Trigonometric Series (Fizmatgiz, Moscow, 1961) [in Russian].
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Original Russian Text © L.P. Kuvardina and A.P. Khromov, 2008, published in Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika, 2008, No. 5, pp. 67–76.
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Kuvardina, L.P., Khromov, A.P. The equiconvergence of expansions in eigenfunctions and associated functions of an integral operator with involution. Russ Math. 52, 58–66 (2008). https://doi.org/10.3103/S1066369X08050071
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DOI: https://doi.org/10.3103/S1066369X08050071