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Nontrivial expansions of zero and representation of analytic functions by series of simple fractions

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Abstract

We propose a modification of the previously-known abstract scheme that reduces the problem of expansion of elements of a locally convex space in series over the system of eigenvectors of some linear operator to the question of existence of a nontrivial expansion of zero in this space. We implement this general scheme for the spaces of analytic functions in domains of the extended complex plane and the systems of simple fractions that are the eigenfunctions of the Pommier operator.

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References

  1. Leont’ev A. F., Series of Exponentials [in Russian], Nauka, Moscow (1976).

    Google Scholar 

  2. Korobeinik Yu. F., “Interpolation problems, nontrivial expansions of zero, and representing systems,” Izv. Akad. Nauk SSSR Ser. Mat., 44, No. 5, 1066–1114 (1980).

    MathSciNet  Google Scholar 

  3. Korobeinik Yu. F., “Representing systems,” Uspekhi Mat. Nauk, 36, No. 1, 73–126 (1981).

    MathSciNet  Google Scholar 

  4. Abanin A. V., “Nontrivial expansions of zero and absolutely representing systems,” Mat. Zametki, 57, No. 4, 483–497 (1995).

    MathSciNet  Google Scholar 

  5. Melikhov S. N., “Nontrivial expansions of zero and representing subspaces,” Izv. Vyssh. Uchebn. Zaved. Mat., No. 8, 53–65 (1990).

  6. Gromov V. P., “Nontrivial expansions of zero and representing systems of eigenvectors of linear operators,” Dokl. Akad. Nauk SSSR, 319, No. 4, 801–805 (1991).

    MathSciNet  Google Scholar 

  7. Edwards R. D., Functional Analysis [Russian translation], Mir, Moscow (1969).

    MATH  Google Scholar 

  8. Korobeinik Yu. F., “On expanding analytic functions in rational functions,” Mat. Zametki, 31, No. 5, 723–737 (1982).

    MathSciNet  Google Scholar 

  9. Leont’eva T. A., “Representation of analytic functions in a closed domain by series of rational functions,” Mat. Zametki, 4, No. 2, 191–200 (1968).

    MATH  MathSciNet  Google Scholar 

  10. Leont’eva T. A., “On conditions for presentation of analytic functions by series of rational functions,” Mat. Zametki, 15, No. 2, 197–203 (1974).

    MATH  MathSciNet  Google Scholar 

  11. Wolff J., “Sur les séries \(\sum _1^\infty \tfrac{{A_k }}{{z - \alpha _k }}\),” C. R. Acad. Sci., 173, 1327–1328 (1921).

    Google Scholar 

  12. Denjoy A., “Sur les séries de fractions rationnelles,” Bull. Soc. Math. France, 52, 418–434 (1924).

    MathSciNet  Google Scholar 

  13. Brown L., Shields A., and Zeller K., “On absolutely convergent exponential sums,” Trans. Amer. Math. Soc., 96, No. 1, 162–183 (1960).

    Article  MATH  MathSciNet  Google Scholar 

  14. Gonchar A. A., “On nonunicity examples for analytic functions,” Vestnik Moskov. Univ. Ser. I Mat. Mekh., No. 1, 37–43 (1964).

  15. Gol’dberg A. A. and Ostrovskii I. A., Value Distribution of Meromorphic Functions [in Russian], Nauka, Moscow (1970).

    Google Scholar 

  16. Melikhov S. N., Right Inverses to the Representation Operators by Series of Exponentials and Convolutions [in Russian], Dis. Dokt. Fiz.-Mat. Nauk, Rostov-on-Don (2002).

    Google Scholar 

  17. Bratishchev A. V., Köthe Bases, Entire Functions, and Some of Their Applications [in Russian], Dis. Dokt. Fiz.-Mat. Nauk, Rostov-on-Don (1997).

    Google Scholar 

  18. Melikhov S. N., “Analytic function expansions in series of exponentials,” Izv. Akad. Nauk SSSR Ser. Mat., 52, No. 5, 991–1004 (1988).

    MATH  Google Scholar 

  19. Köthe G., Topological Vector Spaces, Springer-Verlag, Berlin; Heidelberg; New York (1969).

    MATH  Google Scholar 

  20. Sherstyukov V. B., “On approximation of analytic functions by linear combinations of simple fractions,” Izv. Vyssh. Uchebn. Zaved. Severo-Kavkaz. Reg. Estestv. Nauk, No. 1, 22–24 (2001).

  21. Walsh J. L., Interpolation and Approximation by Rational Functions in the Complex Domain [Russian translation], Izdat. Inostr. Lit., Moscow (1961).

    MATH  Google Scholar 

  22. Schaefer H. H., Topological Vector Spaces [Russian translation], Mir, Moscow (1971).

    Google Scholar 

  23. Sibilev R. V., “A uniqueness theorem for the Wolff-Denjoy series,” Algebra i Analiz, 7, No. 1, 170–199 (1995).

    MATH  MathSciNet  Google Scholar 

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Original Russian Text Copyright © 2007 Sherstyukov V. B.

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Translated from Sibirskiĭ Matematicheskiĭ Zhurnal, Vol. 48, No. 2, pp. 458–473, March–April, 2007.

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Sherstyukov, V.B. Nontrivial expansions of zero and representation of analytic functions by series of simple fractions. Sib Math J 48, 369–381 (2007). https://doi.org/10.1007/s11202-007-0039-8

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  • DOI: https://doi.org/10.1007/s11202-007-0039-8

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