
Similar evolutionary variational inequalities appear as convenient formulations for continuous quasistationary models for sandpile growth, formation of a network of lakes and rivers, magnetization of type-II superconductors, and elastoplastic deformations. We outline the main steps of such models derivation and try to clarify the origin of this similarity. New dual variational formulations, analogous to mixed variational inequalities in plasticity, are derived for sandpiles and superconductors.
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sandpiles, Condensed Matter - Superconductivity, elastoplastic solids, Interface problems; diffusion-limited aggregation in time-dependent statistical mechanics, FOS: Physical sciences, Condensed Matter - Soft Condensed Matter, Variational inequalities, superconductors, Statistical mechanics of superconductors, Superconductivity (cond-mat.supr-con), vatiational equalities, Soft Condensed Matter (cond-mat.soft), critical states, river networks
sandpiles, Condensed Matter - Superconductivity, elastoplastic solids, Interface problems; diffusion-limited aggregation in time-dependent statistical mechanics, FOS: Physical sciences, Condensed Matter - Soft Condensed Matter, Variational inequalities, superconductors, Statistical mechanics of superconductors, Superconductivity (cond-mat.supr-con), vatiational equalities, Soft Condensed Matter (cond-mat.soft), critical states, river networks
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