TY - BOOK AU - Kusraev AU - Totieva TI - Operator theory and differential equations T2 - Trends in Mathematics SN - 978-3-030-49763-7 PY - 2021/// CY - Cham PB - Springer International Publishing, Birkhäuser KW - Operator theory KW - Differential equations KW - Functional analysis KW - Geometry, Differential KW - QA329-329.9 UR - https://doi.org/10.1007/978-3-030-49763-7 ER -