Abstract
This paper provides an overview of the necessary and sufficient conditions for guaranteeing the unique solvability of absolute value equations. In addition to discussing the basic form of these equations, we also address several generalizations, including generalized absolute value equations and matrix absolute value equations. Our survey encompasses known results as well as novel characterizations proposed in this study.
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Acknowledgements
S. Kumar was supported by the Ministry of Education, Government of India, through Graduate Aptitude Test in Engineering (GATE) fellowship registration No. MA19S43033021. M. Hladík and Hossein Moosaei were supported by the Czech Science Foundation Grant P403-22-11117 S.
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Kumar, S., Deepmala, Hladík, M. et al. Characterization of unique solvability of absolute value equations: an overview, extensions, and future directions. Optim Lett 18, 889–907 (2024). https://doi.org/10.1007/s11590-024-02094-0
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DOI: https://doi.org/10.1007/s11590-024-02094-0