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Jeeranunt Khampakdee, Areeyuth Sama-Ae, Chawalit Boonpok,

\alpha(\tau_1,\tau_2)\sigma^\star-continuity for multifunctions.

Int. J. Math. Comput. Sci., 21, no. 1, (2026), 109-115.

DOI:

https://doi.org/10.69793/ijmcs/01.2026/jac

Keywords and phrases:

Upper \alpha(\tau_1,\tau_2)\sigma^\star-continuous multifunction, lower \alpha(\tau_1,\tau_2)\sigma^\star-continuous multifunction.

Abstract:

In this paper, we introduce the notions of upper and lower \alpha(\tau_1,\tau_2)\sigma^\star-continuous multifunctions. Moreover, we investigate several characterizations of upper and lower \alpha(\tau_1,\tau_2)\sigma^\star-continuous multifunctions.