Skip to main content
Log in

α-Subharmonic Functions

  • Published:
Journal of Mathematical Sciences Aims and scope Submit manuscript

Abstract

In this paper, we study the class of α-subharmonic functions. A number of important properties of α-subharmonic functions are proved, and an equivalent, more convenient definition of α-subharmonicity is given. The geometric structure of removable singularities for some classes of α-subharmonic functions is also described.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. 1. B. Abdullaev and S. Imomkulov, “Removable singularities of subharmonic functions from the classes Lp and

  2. B. Abdullaev and A. Sadullaev, “Potential theory in the class of m-subharmonic functions,” Tr. MIAN, 279, 166–192 (2012).

    MathSciNet  Google Scholar 

  3. B. I. Abdullaev and Zh. R. Yarmetov, “On singular sets of subsolutions of elliptic operators”, Vestn. Kras. GU, No. 9, 74–80 (2006).

  4. Sh. A. Alimov, “Fractional powers of elliptic operators and isomorphism of classes of differentiable functions,” Diff. Uravn., 8, No. 9, 1609–1626 (1972).

    MathSciNet  Google Scholar 

  5. L. Bers, F. John, and M. Schechter, Partial Differential Equations [Russian translation], Mir, Moscow (1966).

    Google Scholar 

  6. U. Cegrell, “Sur les ensembles singuliers impropes des plurisubharmoniques”, C.R. Math. Acad. Sci. Paris, 281, 905–908 (1975).

  7. E. M. Chirka, “On the removal of subharmonic singularities of plurisubharmonic functions,” Ann. Polon. Math., 80, 113–116 (2003).

    Article  MathSciNet  Google Scholar 

  8. J.-P. Demailly, Complex Analytic and Differential Geometry, Université de Grenoble I, Saint-Martin d’Héres (1997).

    Google Scholar 

  9. E. P. Dolzhenko, “On singular points of continuous harmonic functions,” Izv. AN CCSR, 28, No. 6, 1251–1270 (1964).

    Google Scholar 

  10. R. Harve and J. C. Polking, “A notion of capacity which characterizes removable singularites,” Trans. Am. Math. Soc., 169, 183–195 (1968).

    Article  Google Scholar 

  11. W. Hayman and P. Kennedy, Subharmonic Functions [Russian translation], Mir, Moscow (1980).

    Google Scholar 

  12. L. Karleson, Selected Problems of Exceptional Sets [Russian translation], Mir, Moscow (1971).

    Google Scholar 

  13. N. S. Landkof, Foundations of Modern Potential Theory [in Russian], Nauka, Moscow (1966).

    Google Scholar 

  14. W. Littman, G. Stampasshia, and H. F. Weinberger, “Regular points for elliptic equations with discontinuous coefficients,” Ann. Sc. Norm. Super. Pisa Cl. Sci. (3), 17, 43–77 (1963).

    MathSciNet  Google Scholar 

  15. V. G. Mazya, “Classes of sets and measures related to embedding theorems”, In: Embedding Theorems and Their Applications, Nauka, Moscow, pp. 142–159 (1970).

  16. V. G. Mazya and V. P. Khavin, “Nonlinear potential theory,” Usp. Mat. Nauk, 27, No. 6, 67–138 (1972).

    MathSciNet  Google Scholar 

  17. M. S. Melnikov and S. O. Sinanyan, “Questions of the theory of approximations of functions of one complex variable,” Totals Sci. Tech. Contemp. Probl. Math., 4, 143–250 (1975).

    Google Scholar 

  18. K. Miranda, Partial Differential Equations of Elliptic Type [in Russian], IL, Moscow (1957).

    Google Scholar 

  19. J. Riihentaus, “A removability results for holomorphic functions of several complex variables,” J. Basic Appl. Sci., 12, 50–52 (2016).

    Article  Google Scholar 

  20. A. Sadullaev, “Plurisubharmonic functions,” Sovrem. Probl. Mat. Fundam. Napravl., 8, 65–111 (1985).

    MathSciNet  Google Scholar 

  21. A. Sadullaev, B. Abdullaev, and R. Sharipov, “Removable singularities of upper-bounded m−sh functions”, Uzb. Mat. Zh., No. 3, 118–124 (2016).

  22. A. Sadullaev and Zh. R. Yarmetov, “Removable singularities of subharmonic functions of the class Lipα,” Mat. Sb., 186, No. 1, 131–148 (1995).

    MathSciNet  Google Scholar 

  23. V. L. Shapiro, “Subharmonic functions and Hausdorff measure,” J. Differ. Equ., 27, No. 1, 28–45 (1978).

    Article  Google Scholar 

  24. M. Vaisova, “Potential theory in the class of α-subharmonic functions”, Uzb. Mat. Zh., No. 3, 46–52 (2016).

  25. M. Vaisova, “Capacity in the class of α-subharmonic functions and its properties,” Ilm Sarchashmalari, No. 6, 8–13 (2018).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to B. I. Abdullaev.

Additional information

Translated from Sovremennaya Matematika. Fundamental’nye Napravleniya (Contemporary Mathematics. Fundamental Directions), Vol. 67, No. 4, Science — Technology — Education — Mathematics — Medicine, 2022.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Abdullaev, B.I., Imomkulov, S.A. & Sharipov, R.A. α-Subharmonic Functions. J Math Sci 278, 395–407 (2024). https://doi.org/10.1007/s10958-024-06929-0

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10958-024-06929-0

Keywords

Navigation