Abstract
We propose a mathematical apparatus based on binary relations that expands the possibility of traditional analysis applied to problems in mathematical and theoretical physics. We illustrate the general constructions with examples with an algebraic description of Bäcklund transformations of nonlinear systems of partial differential equations and the dynamics of wave packet propagation.
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Zharinov, V.V. Binary relations, Bäcklund transformations, and wave packet propagation. Theor Math Phys 205, 1245–1263 (2020). https://doi.org/10.1134/S0040577920100013
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DOI: https://doi.org/10.1134/S0040577920100013