Hand drawn strawberry branch, leaf and berry. Engraved vector... Hand drawn strawberry branch, leaf and berry. Engraved vector illustration. Agricultural plant. Summer harvest, jam or mamalade organic ...

Abstract: Calderón preconditioners for the global multi-trace Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT)-like formulation for the vector potential are presented. The technique is applicable to ...