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math-ph2023
Action principles for dissipative, non-holonomic Newtonian mechanics
Amit Acharya, Ambar N. Sengupta
A methodology for deriving dual variational principles for the classical Newtonian mechanics of mass points in the presence of applied forces, interaction forces, and constraints,…
math-ph2021
Variational principles for nonlinear PDE systems via duality
Amit Acharya
A formal methodology for developing variational principles corresponding to a given nonlinear PDE system is discussed. The scheme is demonstrated in the context of the incompressib…
math-ph2004
Model Reduction via Parametrized Locally Invariant Manifolds: Some Examples
Aarti Sawant, Amit Acharya
A method for model reduction in nonlinear ODE systems is demonstrated through computational examples. The method does not require an implicit separation of time-scales in the fine…