Abstract
We study the modified Martínez Alonso–Shabat equationuyuxz+αuxuty−(uz+αut)uxy=0and present its recursion operator and an infinite commuting hierarchy of full-fledged nonlocal symmetries. To date such hierarchies were found only for very few integrable systems in more than three independent variables.
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More From: Communications in Nonlinear Science and Numerical Simulation
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