A New Kupka Type Continuity, λ-Compactness and Multifunctions

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Abstract

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

Keywords

Topological spaces , Λ-sets , λ-open sets , λ-closed sets , λ-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, λ-Compactness and Multifunctions”, CUBO, vol. 11, no. 4, pp. 1–13, Sep. 2009.

Issue

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

Section

Articles