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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Variational discretizations of gauge field theories using group-equivariant interpolation spaces

## Variational discretizations of gauge field theories using group-equivariant interpolation spacesAdd to your list(s) Download to your calendar using vCal - Melvin Leok (University of California, San Diego)
- Tuesday 01 October 2019, 11:00-12:00
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact info@newton.ac.uk. GCSW02 - Structure preservation and general relativity Variational integrators are geometric structure-preserving numerical methods that preserve the symplectic structure, satisfy a discrete Noether's theorem, and exhibit exhibit excellent long-time energy stability properties. An exact discrete Lagrangian arises from Jacobi's solution of the Hamilton-Jacobi equation, and it generates the exact flow of a Lagrangian system. By approximating the exact discrete Lagrangian using an appropriate choice of interpolation space and quadrature rule, we obtain a systematic approach for constructing variational integrators. The convergence rates of such variational integrators are related to the best approximation properties of the interpolation space. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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