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Contact geometry for simple thermodynamical systems with friction

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arxiv 2004.01989 v1 pith:WBZQLLLW submitted 2020-04-04 math-ph math.MP

classification math-phmath.MP
keywords contactgeometrysimplesystemsthermodynamicalcharacterizationclarifyclass
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Using contact geometry we give a new characterization of a simple but important class of thermodynamical systems which naturally satisfy the first law of thermodynamics (total energy preservation) and the second law (increase of entropy). We completely clarify its qualitative dynamics, the underlying geometrical structures and we show how to use discrete gradient methods.

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