Abstract
Let \({h_g^\infty}\) be the space of harmonic functions in the unit ball that are bounded by some increasing radial function that tends to infinity as r goes to one; these spaces are called growth spaces. We describe functions in growth spaces by the Cesàro means of their expansions in harmonic polynomials and apply this characterization to study coefficient multipliers between growth spaces. Further, we introduce spaces of harmonic functions of regular growth and show that integral operators considered recently in connection to boundary oscillation of harmonic functions in weighted spaces, can be realized as multipliers that map growth spaces to corresponding spaces of regular growth.
Similar content being viewed by others
References
Anderson J.M.: Coefficient multipliers and solid spaces. J. Anal. 1, 13–19 (1993)
Anderson J.M., Shields A.L.: Coefficient multipliers of Bloch functions. Trans. Am. Math. Soc. 224(2), 255–265 (1976)
Bennett G., Stegenga D.A., Timoney R.M.: Coefficients of Bloch and Lipschitz functions. Ill. J. Math. 25(3), 520–531 (1981)
Blasco O.: Multipliers on spaces of analytic functions. Can. J. Math. 47(1), 44–64 (1995)
Bonami A., Clerc J.-L.: Sommes de Cesàro et multiplicateurs des dé-ve-lop-pe-ments en harmoniques sphériques. Trans. Am. Math. Soc. 183, 223–262 (1973)
Buckley S.M.: Mixed norms and analytic function spaces. Math. Proc. R. Ir. Acad. 100A(1), 1–9 (2000)
Buckley S.M.: Relative solidity for spaces of holomorphic functions. Math. Proc. R. Ir. Acad. 104A(1), 83–97 (2004)
Buckley S.M., Koskela P., Vukotić D.: Fractional integration, differentiation, and weighted Bergman spaces. Math. Proc. Cambr. Philos. Soc. 126(2), 369–385 (1999)
Buckley S.M., Ramanujan M.S., Vukotić D.: Bounded and compact multipliers between Bergman and Hardy spaces. Integral Equ. Oper. Theory 35(1), 1–19 (1999)
Dai F., Xu Y.: Approximation Theory and Harmonic Analysis on Spheres and Balls. Springer, New York (2013)
de Boor C.: Divided differences. Surv. Approx. Theory 1, 46–69 (2005)
de Leeuw K., Katznelson Y., Kahane J.-P.: Sur les coefficientes de Fourier des functions continues. C.R. Acad. Sci. Paris Sér. A-B 285(16), A1001–A1003 (1977)
Doubtsov, E.: Characterisations of Hardy growth spaces with doubling weights. Bull. Aust. Math. Soc. 90(2), 275–282 (2014)
Eikrem, K.S.: Characterization and boundary behavior of harmonic functions in growth spaces. Ph.D. thesis, Norwegian University of Science and Technology (NTNU) (2013)
Eikrem K.S.: Hadamard gap series in growth spaces. Collect. Math. 64(1), 1–15 (2013)
Eikrem K.S., Malinnikova E., Mozolyako P.: Wavelet decomposition of harmonic functions in growth spaces. J. Anal. Math. 122, 87–111 (2014)
Girela D., Pavlović M., Peláez J.Á.: Spaces of analytic functions of Hardy–Bloch type. J. Anal. Math. 100, 53–81 (2006)
Kellogg C.N.: An extension of the Hausdorff–Young theorem. Mich. Math. J. 18, 121–127 (1971)
Kogbetliantz E.: Recherches sur la sommabilité de séries ultraphériques par le méthode des moyennes arithmétiques. J. Math. Pure Appl. Ser. 9 3, 107–187 (1924)
Lusky W.: On weighted spaces of harmonic and holomorphic functions. J. Lond. Math. Soc. 51, 309–320 (1995)
Lusky W.: On the isomorphism classes of weighted spaces of harmonic and holomorphic functions. Studia Math. 175(1), 19–45 (2006)
Lyubarskii Yu., Malinnikova E.: Radial oscillation of harmonic functions in the Korenblum space. Bull. Lond. Math. Soc. 44(1), 68–84 (2012)
Nowak M.: Coefficient multipliers of spaces of analytic functions. Ann. Univ. Mariae Curie-Skł odowska Sect. A 52(1), 107–119 (1998)
Pavlović M.: Mixed norm spaces of analytic and harmonic functions, I. Publ. Inst. Math. 40(54), 117–141 (1986)
Pavlović M.: Mixed norm spaces of analytic and harmonic functions, II. Publ. Inst. Math. 41(55), 97–110 (1987)
Shields A.L., Williams D.L.: Bounded projections, duality, and multipliers in spaces of analytic functions. Trans. Am. Math. Soc. 162, 287–302 (1971)
Shields A.L., Williams D.L.: Bounded projections, duality, and multipliers in spaces of harmonic functions. J. Reine Angew. Math. 299/300, 256–279 (1978)
Szegö, G.: Orthogonal Polynomilas, 4th edn. American Mathematical Society, Providence (1975)
Vukotić. D.: On the coefficient multipliers of Bergman spaces. J. Lond. Math. Soc. II. Ser. 50(2), 341–348 (1994)
Author information
Authors and Affiliations
Corresponding author
Additional information
The second author is supported by Project 213638 of the Research Council of Norway.
Rights and permissions
About this article
Cite this article
Eikrem, K.S., Malinnikova, E. Coefficients Multipliers of Weighted Spaces of Harmonic Functions. Integr. Equ. Oper. Theory 82, 555–573 (2015). https://doi.org/10.1007/s00020-015-2221-x
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00020-015-2221-x