A secondary index for non-Fredholm operators associated with quantum walks

Autor:	Natsume, Toshikazu, Nest, Ryszard
Rok vydání:	2023
Předmět:	Mathematics - Operator Algebras (primary)46L80 (secondary)81P45
Druh dokumentu:	Working Paper
Popis:	We study an analogue of chirality operators associated with quantum walks on the binary tree. For those operators we introduce a K-theoretic invariant, an analogue of the index of Fredholm operators, and compute its values in the ring of di-adic integers Comment: 12 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2310.13094 Zobrazit plný text záznamu View this record from Arxiv