Summary
Stochastic evolution equations with monotone operators in Banach spaces are considered. The solutions are characterized as minimizers of certain convex functionals. The method of monotonicity is interpreted as a method of constructing minimizers to these functionals, and in this way solutions are constructed via Euler-Galerkin approximations.
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Gyöngy, I., Martínez, T. Solutions of stochastic partial differential equations as extremals of convex functionals. Acta Math Hung 109, 127–145 (2005). https://doi.org/10.1007/s10474-005-0237-4
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DOI: https://doi.org/10.1007/s10474-005-0237-4