A *principal symbol* is the highest homogeneous degree part of a symbol of a pseudodifferential operator. Some authors call a principal symbol a “symbol”, and symbol the “total symbol”.

- wikipedia
- Y. Kordyukov, F. Sukochev, D. Zanin,
*$C^\ast$-algebraic approach to the principal symbol. III*, arXiv:2309.04500

Last revised on September 26, 2023 at 00:07:33. See the history of this page for a list of all contributions to it.