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Mori-Zwanzig formalism: An existence proof for weak solutions of the orthogonal dynamics equation
Christoph Widder
In classical statistical physics, the Mori-Zwanzig projection operator technique is used to derive generalized Langevin equations for a random variable (observable). Standard deriv…
math-ph2026
Generalised Langevin Dynamics: Significance and Limitations of the Projection Operator Formalism
Christoph Widder, Tanja Schilling
We discuss some mathematical aspects of the Mori-Zwanzig projection operator formalism. The core of the Mori-Zwanzig formalism is the generalised Langevin equation, which is typica…