Abstract
We consider limit periodic sequences and functions with values in pseudometric spaces. We construct limit periodic sequences and functions with given values. For any totally bounded countable set, we find a limit periodic sequence which attains each value from this set periodically. A corresponding result concerning such a construction of limit periodic functions is proved as well. For any totally bounded countable set which is dense in itself, we construct a limit periodic bijective map from the integers into this set. As corollaries, we obtain new results about non-almost periodic solutions of almost periodic transformable difference systems.
The first author is supported by the project “Employment of Best Young Scientists for International Cooperation Empowerment” (CZ.1.07/2.3.00/30.0037) co-financed from European Social Fund and the state budget of the Czech Republic.
The second author is supported by the Czech Science Foundation under Grant P201/10/1032.
This paper has been communicated by Gregor Dolinar
References
[1] Bânzaru T.: Multivalued almost periodic mappings, Bul. Științ. Tehn. Inst. Univ. Politeh. Timiș. Ser. Mat. Fiz. Mec. Teoret. Apl. 19(33) (1974), 25–28.Search in Google Scholar
[2] Bânzaru T.—Crivăț N.: On almost periodic multivalued maps with values in uniform spaces, Bul. Științ. Tehn. Inst. Univ. Politeh. “Traian Vuia” Timiș. Ser. Mat. Fiz. 26(40) (1981), 47–51.Search in Google Scholar
[3] Bede B.—Gal S. G.: Almost periodic fuzzy-number-valued functions, Fuzzy Sets and Systems 147 (2004), 385–403.10.1016/j.fss.2003.08.004Search in Google Scholar
[4] Besicovitch A. S.: Almost Periodic Functions, Dover Publications, New York, 1955.Search in Google Scholar
[5] Bochner S.: Abstrakte fastperiodische Funktionen, Acta Math. 61 (1933), 149–184.10.1007/BF02547790Search in Google Scholar
[6] Bohr H.: Zur Theorie der fastperiodischen Funktionen. I. Eine Verallgemeinerung der Theorie der Fourierreihen, Acta Math. 45 (1925), 29–127.10.1007/BF02395468Search in Google Scholar
[7] Bohr H.: Zur Theorie der fastperiodischen Funktionen. II. Zusammenhang der fastperiodischen Funktionen mit Funktionen von unendlich vielen Variabeln; gleichmässige Approximation durch trigonometrische Summen, Acta Math. 46 (1925), 101–214.10.1007/BF02543859Search in Google Scholar
[8] Bugajewski D.—N’Guérékata G. M.: Almost periodicity in Fréchet spaces, J. Math. Anal. Appl. 299 (2004), 534–549.10.1016/j.jmaa.2004.05.042Search in Google Scholar
[9] Cheban D. N.: Asymptotically Almost Periodic Solutions of Differential Equations, Hindawi Publishing Corporation, New York, 2009.10.1155/9789774540998Search in Google Scholar
[10] Corduneanu C.: Almost Periodic Functions, John Wiley and Sons, New York, 1968.Search in Google Scholar
[11] Corduneanu C.: Almost Periodic Oscillations and Waves, Springer, New York, 2009.10.1007/978-0-387-09819-7Search in Google Scholar
[12] Crivăț N.: Almost periodic multifunctions with values in generalized uniform spaces, Bul. Științ. Univ. Politeh. Timiș. Ser. Mat. Fiz. 52(66) (2007), 69–75.Search in Google Scholar
[13] Crivăț N.: Almost periodic multifunctions with values in generalized uniform spaces (II), Bul. Științ. Univ. Politeh. Timiș. Ser. Mat. Fiz. 55(69) (2010), 16–21.Search in Google Scholar
[14] Duy T. K.: Limit-periodic arithmetical functions and the ring of finite integral adeles, Lith. Math. J. 51 (2011), 486–506.10.1007/s10986-011-9143-3Search in Google Scholar
[15] Dvurečenskij A.: Pseudo MV-algebras are intervals in ℓ-groups, J. Aust. Math. Soc. 72 (2002), 427–445.10.1017/S1446788700036806Search in Google Scholar
[16] Fan K.: Les fonctions asymptotiquement presque-périodiques d’une variable entière et leur application à l’étude de l’itération des transformations continues, Math. Z. 48 (1942/43), 685–711.10.1007/BF01180036Search in Google Scholar
[17] Fink A. M.: Almost Periodic Differential Equations . Lecture Notes in Math. 377, Springer, Berlin, 1974.10.1007/BFb0070324Search in Google Scholar
[18] Flor P.: Über die Wertmengen fastperiodischer Folgen, Monatsh. Math. 67 (1963), 12–17.10.1007/BF01300676Search in Google Scholar
[19] Fréchet M.: Les fonctions asymptotiquement presque-périodiques, Revue Sci (Rev. Rose Illus.) 79 (1941), 341–354.Search in Google Scholar
[20] Fréchet M.: Les fonctions asymptotiquement presque-périodiques continues, C. R. Acad. Sci. Paris 213 (1941), 520–522.Search in Google Scholar
[21] Gal C. G.—GalS. G.—N’GuérékataG. M.: Almost automorphic functions with values in p -Fréchet spaces, Electron. J. Differential Equations 2008 (2008), No. 21, 1–18.Search in Google Scholar
[22] Gal S. G.—N’GuérékataG. M.: Almost periodic functions with values in p -Fréchet spaces, 0 < p < 1, Glob. J. Pure Appl. Math. 3 (2007), 89–103.Search in Google Scholar
[23] Hasil P.—Veselý M.: Almost periodic transformable difference systems, Appl. Math. Comput. 218 (2012), 5562–5579.10.1016/j.amc.2011.11.050Search in Google Scholar
[24] Jajte R.: On almost-periodic sequences, Colloq. Math. 13 (1964/1965), 265–267.10.4064/cm-13-2-265-267Search in Google Scholar
[25] Kelley J. L.: General Topology . Grad. Texts in Math. 27, Springer, New York, 1975.Search in Google Scholar
[26] Latif M. A.—BhattiM. I.: Almost periodic functions defined on ℝn with values in fuzzy setting, Punjab Univ. J. Math. (Lahore) 39 (2007), 19–27.Search in Google Scholar
[27] Latif M. A.—N’GuérékataG. M.—BhattiM. I.: Almost periodic functions defined on ℝn with values in p -Fréchet spaces, 0 < p < 1, Libertas Math. 29 (2009), 83–100.Search in Google Scholar
[28] Levitan B. M.—ZhikovV. V.: Almost Periodic Functions and Differential Equations, Cambridge University Press, Cambridge, 1982.Search in Google Scholar
[29] Mauclaire J.-L.: Suites limite-périodiques et théorie des nombres. I, Proc. Japan Acad. Ser. A Math. Sci. 56 (1980), 180–182.10.3792/pjaa.56.180Search in Google Scholar
[30] Muni G.: Functions of 𝔖 almost periodic with respect to a homeomorphic group, Boll. Unione Mat. Ital. B (5) 17 (1980), 232–243.Search in Google Scholar
[31] N’Guérékata G. M.: Almost Automorphic and Almost Periodic Functions in Abstract Spaces, Kluwer Academic/Plenum Publishers, New York, 2001.10.1007/978-1-4757-4482-8Search in Google Scholar
[32] Sharma P. L.—Anki ReddyK. C.—FunakosiS.: Remarks on uniform space valued almost periodic functions depending on parameters, Math. Sem. Notes Kobe Univ. 4 (1976), 87–90.Search in Google Scholar
[33] Tornehave H.: On almost periodic movements, Danske Vid. Selsk. Mat.-Fys. Medd. 28 (1954), No. 13, 1–42.Search in Google Scholar
[34] Tornehave H.: Recent investigations on almost periodic movements. In: Tolfte Skandinaviska Matematikerkongressen, Lund, 1953, Lunds Universitets Matematiska Institution, Lund, 1954, pp. 302–309.Search in Google Scholar
[35] Veselý M.: Almost periodic homogeneous linear difference systems without almost periodic solutions, J. Difference Equ. Appl. 18 (2012), 1623–1647.10.1080/10236198.2011.585984Search in Google Scholar
[36] Veselý M.: Almost periodic sequences and functions with given values, Arch. Math. (Brno) 47 (2011), 1–16.Search in Google Scholar
[37] Veselý M.: Construction of almost periodic functions with given properties, Electron. J. Differential Equations 2011 (2011), No. 29, 1–25.Search in Google Scholar
[38] Veselý M.: Construction of almost periodic sequences with given properties, Electron. J. Differential Equations 2008 (2008), No. 126, 1–22.Search in Google Scholar
[39] Zaidman S.: Almost-periodic Functions in Abstract Spaces . Res. Notes Math. 126, Pitman Advanced Publishing Program, Boston, 1985.Search in Google Scholar
[40] Zhang C.: Almost Periodic Type Functions and Ergodicity, Science Press Beijing/Kluwer Academic Publishers, Beijing/Dordrecht, 2003.10.1007/978-94-007-1073-3Search in Google Scholar
© 2016 Mathematical Institute Slovak Academy of Sciences
Articles in the same Issue
- Research Article
- Prof. RNDr. Ján Jakubík, DrSc. passed away
- Research Article
- On the number of slim, semimodular lattices
- Research Article
- Quantum computational algebra with a non-commutative generalization
- Research Article
- Lexico groups and direct products of lattice ordered groups
- Research Article
- Values of limit periodic sequences and functions
- Research Article
- On representation of quasi-Hopf group coalgebras
- Research Article
- On the q-Bernstein polynomials of the logarithmic function in the case q > 1
- Research Article
- On some modification of Darboux property
- Research Article
- Separating sets by peripherally continuous functions
- Research Article
- Persistence and extinction of a stochastic delay predator-prey model in a polluted environment
- Research Article
- On O’Malley preponderantly continuous functions
- Research Article
- Inequalities for the normalized Jensen functional with applications
- Research Article
- Majorization of starlike and convex functions of complex order involving linear operators
- Research Article
- Fekete–Szegö problem for some starlike functions related to shell-like curves
- Research Article
- Central functions for classes of concave univalent functions
- Research Article
- Inclusion properties for classes of analytic functions associated with conic domains
- Research Article
- Uniqueness of meromorphic functions and nonlinear differential polynomials sharing a nonzero polynomial
- Research Article
- Solutions and constrained null-controllability for a differential-difference equation
- Research Article
- Oscillation criteria for quasi-linear neutral delay dynamic equations on time scale
- Research Article
- Time periodic solutions for a sixth order nonlinear parabolic equation
- Research Article
- Some inequalities of trigonometric approximation in weighted Orlicz spaces
- Research Article
- Summation methods applied to Voronovskaya-type theorems for the partial sums of Fourier series and for Fejér operators
- Research Article
- Dichotomies for Orlicz spaces
- Research Article
- On freely generated semigraph C*-algebras
- Research Article
- Operators with a given part of the numerical range
- Research Article
- Characterization of quasi-continuity of multifunctions of two variables
- Research Paper
- Confidence regions in singular weakly nonlinear regression models with constraints
- Research Article
- Global stability of an SEI model for plant diseases
Articles in the same Issue
- Research Article
- Prof. RNDr. Ján Jakubík, DrSc. passed away
- Research Article
- On the number of slim, semimodular lattices
- Research Article
- Quantum computational algebra with a non-commutative generalization
- Research Article
- Lexico groups and direct products of lattice ordered groups
- Research Article
- Values of limit periodic sequences and functions
- Research Article
- On representation of quasi-Hopf group coalgebras
- Research Article
- On the q-Bernstein polynomials of the logarithmic function in the case q > 1
- Research Article
- On some modification of Darboux property
- Research Article
- Separating sets by peripherally continuous functions
- Research Article
- Persistence and extinction of a stochastic delay predator-prey model in a polluted environment
- Research Article
- On O’Malley preponderantly continuous functions
- Research Article
- Inequalities for the normalized Jensen functional with applications
- Research Article
- Majorization of starlike and convex functions of complex order involving linear operators
- Research Article
- Fekete–Szegö problem for some starlike functions related to shell-like curves
- Research Article
- Central functions for classes of concave univalent functions
- Research Article
- Inclusion properties for classes of analytic functions associated with conic domains
- Research Article
- Uniqueness of meromorphic functions and nonlinear differential polynomials sharing a nonzero polynomial
- Research Article
- Solutions and constrained null-controllability for a differential-difference equation
- Research Article
- Oscillation criteria for quasi-linear neutral delay dynamic equations on time scale
- Research Article
- Time periodic solutions for a sixth order nonlinear parabolic equation
- Research Article
- Some inequalities of trigonometric approximation in weighted Orlicz spaces
- Research Article
- Summation methods applied to Voronovskaya-type theorems for the partial sums of Fourier series and for Fejér operators
- Research Article
- Dichotomies for Orlicz spaces
- Research Article
- On freely generated semigraph C*-algebras
- Research Article
- Operators with a given part of the numerical range
- Research Article
- Characterization of quasi-continuity of multifunctions of two variables
- Research Paper
- Confidence regions in singular weakly nonlinear regression models with constraints
- Research Article
- Global stability of an SEI model for plant diseases