Abstract
In this paper, we continue the construction of variational integrators adapted to contact geometry started in Vermeeren et al. (J Phys A 52(44):445206, 2019), in particular, we introduce a discrete Herglotz Principle and the corresponding discrete Herglotz Equations for a discrete Lagrangian in the contact setting. This allows us to develop convenient numerical integrators for contact Lagrangian systems that are conformally contact by construction. The existence of an exact Lagrangian function is also discussed.
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Acknowledgements
Manuel Lainz wishes to thank MICINN and ICMAT for a FPI-Severo Ochoa predoctoral contract PRE2018-083203. The authors are supported by Ministerio de Ciencia e Innovación (Spain) under Grants PID2019-106715GB-C21, MTM2016-76702-P and “Severo Ochoa Programme for Centres of Excellence” in R&D (SEV-2015-0554). A. Simoes is supported by the FCT (Portugal) research fellowship SFRH/BD/129882/2017 partially funded by the European Union (ESF). M. Lainz wishes to thank MICINN and ICMAT for a FPI-Severo Ochoa predoctoral contract PRE2018-083203. The authors also want to thank the referees for the careful reading and useful feedback that contributed to improve the quality of the paper.
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Communicated by Arash Yavari.
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Anahory Simoes, A., Martín de Diego, D., Lainz Valcázar, M. et al. On the Geometry of Discrete Contact Mechanics. J Nonlinear Sci 31, 53 (2021). https://doi.org/10.1007/s00332-021-09708-2
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DOI: https://doi.org/10.1007/s00332-021-09708-2