A New Kupka Type Continuity, Î»-Compactness and Multifunctions

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Abstract

In this paper, we introduce a new Kupka type function called Î»-Kupka and we investigate some of its properties. Also we obtain several characterizations and some basic properties concerning upper (lower) Î»-continuous multifunctions.

Keywords

Topological spaces , Î›-sets , Î»-open sets , Î»-closed sets , Î»-Kupka continuity , multifunction

M. Caldas Departamento de Matemática Aplicada, Universidade Federal Fluminense, Rua Mário Santos Braga, s/n, 24020-140, Niterói, Rio de Janeiro, Brasil.
E. Hatir Egitim Fakültesi, Selçuk Ìniversitesi, Matematik Bölümü, 42090 Konya, Turkey.
S. Jafari Department of Economics, Copenhagen University, Oester Farimagsgade 5, Bygning 26, 1353 Copenhagen K, Denmark.
T. Noiri 2949-1 Shiokita-cho, Hinagu, Yatsushiro-shi, Kumamoto-ken, 869-5142, Japan.

Pages: 1–13
Date Published: 2009-09-01
Vol. 11 No. 4 (2009): CUBO, A Mathematical Journal

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Published

2009-09-01

How to Cite

[1]

M. Caldas, E. Hatir, S. Jafari, and T. Noiri, “A New Kupka Type Continuity, Î»-Compactness and Multifunctions”, CUBO, vol. 11, no. 4, pp. 1–13, Sep. 2009.

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Vol. 11 No. 4 (2009): CUBO, A Mathematical Journal

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Articles

Most read articles by the same author(s)

P. Jeyanthi, P. Nalayini, T. Noiri, Pre-regular \(sp\)-open sets in topological spaces , CUBO, A Mathematical Journal: Vol. 20 No. 1 (2018)
R. Devi, A. Selvakumar, M. Parimala, S. Jafari, On strongly Î±-ð˜-ð˜–ð‘ð‘’ð‘› sets and a new mapping , CUBO, A Mathematical Journal: Vol. 13 No. 1 (2011): CUBO, A Mathematical Journal

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Adrian Petrus¸el, Ioan A. Rus, Marcel Adrian S¸erban, Fixed Points for Operators on Generalized Metric Spaces , CUBO, A Mathematical Journal: Vol. 10 No. 4 (2008): CUBO, A Mathematical Journal
Shwet Nisha, P. K. Parida, Super-Halley method under majorant conditions in Banach spaces , CUBO, A Mathematical Journal: Vol. 22 No. 1 (2020)
Seppo Heikkila, Fixed Point Results for Set-Valued and Single-Valued Mappings in Ordered Spaces , CUBO, A Mathematical Journal: Vol. 10 No. 4 (2008): CUBO, A Mathematical Journal
Franco Fagnola, Damiano Poletti, Emanuela Sasso, Energy transfer in open quantum systems weakly coupled with two reservoirs , CUBO, A Mathematical Journal: Vol. 23 No. 1 (2021)
P. Jeyanthi, K. Jeya Daisy, Andrea SemaniÄová-feÅˆovÄíková, \(Z_k\)-magic labeling of path union of graphs , CUBO, A Mathematical Journal: Vol. 21 No. 2 (2019)
Martin Moskowitz, Symmetric Spaces of Noncompact type , CUBO, A Mathematical Journal: Vol. 7 No. 2 (2005): CUBO, A Mathematical Journal
C. Carpintero, E. Rosas, N. Rajesh, S. Saranyasri, On upper and lower Ï‰-irresolute multifunctions , CUBO, A Mathematical Journal: Vol. 16 No. 3 (2014): CUBO, A Mathematical Journal
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N. Seshagiri Rao, K. Kalyani, Fixed point results of \((\phi,\psi)\)-weak contractions in ordered \(b\)-metric spaces , CUBO, A Mathematical Journal: Vol. 24 No. 2 (2022)
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