On Contra-$(\tau_1,\tau_2)p$-continuity and Almost Contra-$(\tau_1,\tau_2)p$-continuity for Multifunctions

Authors

  • Chokchai Viriyapong Mahasarakham University
  • Areeyuth Sama-Ae Mahasarakham University
  • Chawalit Boonpok Mahasarakham University

DOI:

https://doi.org/10.29020/nybg.ejpam.v18i2.6009

Keywords:

upper contra-$(\tau_1,\tau_2)p$-continuous multifunction;, lower contra-$(\tau_1,\tau_2)p$-continuous multifunction;, upper almost contra-$(\tau_1,\tau_2)p$-continuous multifunction;, lower almost contra-$(\tau_1,\tau_2)p$-continuous multifunction

Abstract

This paper presents four new classes of multifunctions called upper contra-$(\tau_1,\tau_2)p$-continuous
multifunctions, lower contra-$(\tau_1,\tau_2)p$-continuous multifunctions, upper almost
contra-$(\tau_1,\tau_2)p$-continuous multifunctions and lower almost contra-$(\tau_1,\tau_2)p$-continuous
multifunctions. Furthermore, several characterizations and some properties concerning upper contra-$(\tau_1,\tau_2)p$-continuous
multifunctions, lower contra-$(\tau_1,\tau_2)p$-continuous multifunctions, upper almost contra-$(\tau_1,\tau_2)p$-continuous
multifunctions and lower almost contra-$(\tau_1,\tau_2)p$-continuous multifunctions are established.

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Published

2025-05-01

Issue

Vol. 18 No. 2: (April 2025)

Section

Topology

License

Copyright (c) 2025 Chokchai Viriyapong, Areeyuth Sama-Ae, Chawalit Boonpok

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How to Cite

On Contra-$(\tau_1,\tau_2)p$-continuity and Almost Contra-$(\tau_1,\tau_2)p$-continuity for Multifunctions. (2025). European Journal of Pure and Applied Mathematics, 18(2), 6009. https://doi.org/10.29020/nybg.ejpam.v18i2.6009