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physics.comp-ph2026
Conforming and nonconforming Trefftz approximations for two-dimensional scalar electromagnetic problems
Igor Tsukerman
Trefftz functions satisfy the differential equation locally and exactly; quasi-Trefftz functions do so approximately to prescribed high order. This paper considers (quasi-)Trefftz…
physics.optics2026
Full-field and Bloch-periodic-factor discretizations: Accuracy and phantom modes
Igor Tsukerman
One can distinguish four major formulations of the Bloch-mode problem in linear periodic media. First, there are two common complementary ways of slicing the Bloch variety (Bloch w…