TY - BOOK AU - Colombo, Fabrizio AU - Gantner, Jonathan TI - Quaternionic closed operators, fractional powers and fractional diffusion process T2 - Operator theory: Advances and applications SN - 9783030164119 PY - 2019/// CY - London PB - Birkhauser KW - Vector operator KW - Spectral theory N1 - Operator theory advances and applications Vol 274 ER -