Colombo, Fabrizio <br/><br/>
Quaternionic closed operators, fractional powers and fractional diffusion process 

 - London  Birkhauser  2019 
 - viii+322 
 - Operator theory: Advances and applications .
<br/><br/> Operator theory advances and applications Vol 274 
<br/><br/><label>ISBN: </label>9783030164119 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vector operator<br/>Spectral theory