Accuracy of Difference Schemes in Electromagnetic Applications: A Trefftz Analysis

  title={Accuracy of Difference Schemes in Electromagnetic Applications: A Trefftz Analysis},
  author={Igor Tsukerman},
  journal={IEEE Transactions on Magnetics},
  • I. Tsukerman
  • Published 3 March 2020
  • Mathematics
  • IEEE Transactions on Magnetics
The article examines local approximation errors of finite-difference schemes in electromagnetic analysis. Despite a long history of the subject, several accuracy-related issues have been overlooked and/or remain controversial. For example, conflicting claims have been made in the literature about the order of Yee-like schemes in the vicinity of slanted or curved material interfaces. Two novel practical methods for comparison of local accuracy of difference schemes are proposed: one makes use of… 

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