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Author

Abdelfatah Abasher

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Open access Sep 2026

Error Bounds for Generalized Multivalued Vector Inverse Quasi-Variational Inequalities via Gap Functions

We introduce and analyze a new problem class termed the generalised multivalued vector inverse quasi-variational inequality (GMVIQVI). For this problem, we develop three gap functions: the residual gap function, the regularised gap function, and the \(\mathcal{D}\)-gap function. Under standard assumptions, including st...

A. A. Abdallah, M. A. Bakhit, Yasser Salah El Samman et al. · 0 citations
Open access Aug 2026

Mathematical Analysis and Optimal Control of a Tuberculosis Model with Early Diagnosed Latent Infections

This study develops an SEIR model for TB transmission, taking into account the early diagnosed latent infections, and shows that combined strategy which involve all interventions reduce the total cost, while transmission reduction only strategy gives the greatest reduction in infected individuals.

Abdelfatah Abasher, Yasser Salah S. Abougamea, Elsiddeg Ali et al. · 0 citations

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