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SODE solver #91

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martinjrobins opened this issue Sep 7, 2024 · 0 comments
Open
3 tasks

SODE solver #91

martinjrobins opened this issue Sep 7, 2024 · 0 comments

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@martinjrobins
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martinjrobins commented Sep 7, 2024 •
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  • Implement ESDIRK method for SODEs with singular mass matrix. Should be able to do this ontop of existing SDIRK solver in diffsol:
    • I'm currently thinking of following the approch used in differentialequations.jl
    • SODE equations and tableau described here. 4-stage 3rd order ODE method due to Kennedy and Carpenter on page 9.
    • Timestepping with error control and rejection sampling described here
  • I'm not sure if there is a good published solver based on BDF, if I find one I'll add it here. Otherwise need to give a reasonable error if a user tries to use BDF solver for SODEs
  • Update OdeEquations trait to enable users to specify SODE equations required (presumably need to specify additional functions for diffusion term g and its gradient)
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