Upper and Lower \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-Continuity

Pue-on, Prapart; Rerkpiboon, Chiranya; Boonpok, Chawalit

doi:10.28924/2291-8639-24-2026-346

Research Article

Upper and Lower \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-Continuity

Prapart Pue-on
Chiranya Rerkpiboon
Chawalit Boonpok*

* Corresponding author

Abstract

This paper presents new concepts of continuous multifunctions defined between an ideal topological space and a bitopological space, namely upper \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-continuous multifunctions and lower \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-continuous multifunctions. Furthermore, several characterizations and some properties concerning upper \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-continuous multifunctions and lower \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-continuous multifunctions are discussed.

How to Cite

P. Pue-on, C. Rerkpiboon, C. Boonpok, Upper and Lower \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-Continuity, Int. J. Anal. Appl. 24 (2026), 346. https://doi.org/10.28924/2291-8639-24-2026-346

BibTeX

@article{Pue-on2026,
  author  = {Pue-on, Prapart and Rerkpiboon, Chiranya and Boonpok, Chawalit},
  title   = {Upper and Lower \(s\)-\(\tau^\star(\sigma_1,\sigma_2)\)-Continuity},
  journal = {Int. J. Anal. Appl.},
  volume  = {24},
  year    = {2026},
  pages   = {346},
  doi     = {10.28924/2291-8639-24-2026-346}
}

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