Dear Yan,
you can check the FasterCap referenced papers at ht*ps://w*w.fastfieldsolvers.com/publications.htm (replace the * with the proper letters in the address, this is an anti-spam measure), in particular the papers from Appel, the one from Hanrahan, and the one by Weiping Shi.
In a nutshell, the mesh refinement is based on Appel's algorithm that ws originally devised from the N-body problem (just like the multipole algorithm used in FastCap was invented to accelerate N-body computations) and then extended to solve Radiosity problems by Hanrahan.
FasterCap uses the same algorithm as used for Radiosity in a similar fashion to what done by Weiping Shi - although I personally find this latter paper a bit confusing.
Best Regards,
Enrico
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Automatic mesh refinement
Posted - Apr 11 2023 : 10:10:15
