Home Uniform continuity of nonautonomous superposition operators in ΛBV-spaces
Article
Licensed
Unlicensed Requires Authentication

Uniform continuity of nonautonomous superposition operators in ΛBV-spaces

  • Jacek Gulgowski ORCID logo EMAIL logo
Published/Copyright: March 7, 2019

Abstract

In this paper we investigate the problem of uniform continuity of nonautonomous superposition operators acting between spaces of functions of bounded Λ-variation. In particular, we give the sufficient conditions for nonautonomous superposition operators to continuously map a space of functions of bounded Λ-variation into itself. The conditions cover the generators being functions of C1-class (in view of two variables), but also allow for less regular functions, including discontinuous generators.

MSC 2010: 47H30; 26A45

Communicated by Christopher D. Sogge


References

[1] J. Appell, J. Banaś and N. Merentes, Bounded Variation and Around, De Gruyter Ser. Nonlinear Anal. Appl. 17, De Gruyter, Berlin, 2014. 10.1515/9783110265118Search in Google Scholar

[2] D. Bugajewska, D. Bugajewski, P. Kasprzak and P. Maćkowiak, Nonautonomous superposition operators in the spaces of functions of bounded variation, Topol. Methods Nonlinear Anal. 48 (2016), no. 2, 637–660. 10.12775/TMNA.2016.070Search in Google Scholar

[3] D. Bugajewski, K. Czudek, J. Gulgowski and J. E. Sadowski, On some nonlinear operators in ΛBV-spaces, J. Fixed Point Theory Appl. 19 (2017), no. 4, 2785–2818. 10.1007/s11784-017-0450-0Search in Google Scholar

[4] D. Bugajewski, J. Gulgowski and P. Kasprzak, On continuity and compactness of some nonlinear operators in the spaces of functions of bounded variation, Ann. Mat. Pura Appl. (4) 195 (2016), no. 5, 1513–1530. 10.1007/s10231-015-0526-7Search in Google Scholar

[5] K. Czudek, Bernstein and Kantorovich polynomials diminish the Λ-variation, J. Math. Anal. Appl. 452 (2017), no. 2, 912–925. 10.1016/j.jmaa.2017.03.035Search in Google Scholar

[6] E. Hille, Methods in Classical and Functional Analysis, Addison-Wesley, Reading, 1972. Search in Google Scholar

[7] P. Kasprzak and P. Maćkowiak, Local boundedness of nonautonomous superposition operators in BV[0;1], Bull. Aust. Math. Soc. 92 (2015), 325–341. 10.1017/S0004972715000593Search in Google Scholar

[8] P. Maćkowiak, On the continuity of superposition operators in the space of functions of bounded variation, Aequationes Math. 91 (2017), no. 4, 759–777. 10.1007/s00010-017-0491-xSearch in Google Scholar

[9] G. A. Monteiro, On functions of bounded semivariation, Real Anal. Exchange 40 (2014/15), no. 2, 233–276. 10.14321/realanalexch.40.2.0233Search in Google Scholar

[10] F. Prus-Wiśniowski, Separability of the space of continuous functions that are continuous in Λ-variation, J. Math. Anal. Appl. 344 (2008), no. 1, 274–291. 10.1016/j.jmaa.2008.02.014Search in Google Scholar

[11] F. Prus-Wiśniowski, Λ-absolute continuity, Rocky Mountain J. Math. 39 (2009), no. 5, 1613–1656. 10.1216/RMJ-2009-39-5-1613Search in Google Scholar

[12] D. Waterman, On convergence of Fourier series of functions of generalized bounded variation, Studia Math. 44 (1972), 107–117. 10.4064/sm-44-2-107-117Search in Google Scholar

[13] D. Waterman, On L-bounded variation, Studia Math. 57 (1976), no. 1, 33–45. 10.4064/sm-57-1-33-45Search in Google Scholar

Received: 2018-09-15
Revised: 2018-11-15
Published Online: 2019-03-07
Published in Print: 2019-05-01

© 2019 Walter de Gruyter GmbH, Berlin/Boston

Downloaded on 17.9.2025 from https://www.degruyterbrill.com/document/doi/10.1515/forum-2018-0214/html?lang=en
Scroll to top button