Practical construction of modified Hamiltonians (Q2780573)
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scientific article; zbMATH DE number 1729186
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Practical construction of modified Hamiltonians |
scientific article; zbMATH DE number 1729186 |
Statements
15 April 2002
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symplectic integrators
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Hamiltonian systems
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modified equations
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splitting methods
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numerical integrator
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backward errors
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numerical experiments
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0.8904537
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0.87022865
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0.85340035
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0.85236984
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0.83646506
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Practical construction of modified Hamiltonians (English)
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The authors consider a quite simple procedure to construct modified Hamiltonians, which is nearly independent of the internal structure of the integrator. At the same time, the method provides accurate estimates for modified Hamiltonians and when the Hamiltonian is quadratic the corresponding modified Hamiltonian is exactly conserved by a numerical solution.
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