Посилання:Derivations and Spectral Triples on Quantum Domains I: Quantum Disk / S. Klimek, M. McBride, S. Rathnayake, K. Sakai, H. Wang // Symmetry, Integrability and Geometry: Methods and Applications. — 2017. — Т. 13. — Бібліогр.: 21 назв. — англ.
Підтримка:We would like to thank the anonymous referees for relevant remarks to improve the paper.
We study unbounded invariant and covariant derivations on the quantum disk. In particular we answer the question whether such derivations come from operators with compact parametrices and thus can be used to define spectral triples.