A discrete gradient scheme for preserving QSR-dissipativity
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866911451951661056 |
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| author | Karsai, Attila Schulze, Philipp |
| author_facet | Karsai, Attila Schulze, Philipp |
| contents | The notion of dissipative dynamical systems provides a formal description of processes that cannot generate energy internally. For these systems, changes in energy can only occur due to an external energy supply or dissipation effects. Unfortunately, dissipative properties tend to deteriorate in numerical computations, especially in nonlinear systems. Discrete gradient methods can help mitigate this problem. In this paper, we present a class of structure-preserving time discretization schemes based on discrete gradients for a special class of systems that are dissipative with respect to a quadratic supply rate. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_15445 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A discrete gradient scheme for preserving QSR-dissipativity Karsai, Attila Schulze, Philipp Numerical Analysis Dynamical Systems Optimization and Control 37M15, 65P10, 93-10, 93C10 The notion of dissipative dynamical systems provides a formal description of processes that cannot generate energy internally. For these systems, changes in energy can only occur due to an external energy supply or dissipation effects. Unfortunately, dissipative properties tend to deteriorate in numerical computations, especially in nonlinear systems. Discrete gradient methods can help mitigate this problem. In this paper, we present a class of structure-preserving time discretization schemes based on discrete gradients for a special class of systems that are dissipative with respect to a quadratic supply rate. |
| title | A discrete gradient scheme for preserving QSR-dissipativity |
| topic | Numerical Analysis Dynamical Systems Optimization and Control 37M15, 65P10, 93-10, 93C10 |
| url | https://arxiv.org/abs/2602.15445 |