Some Remarks on the Product Formula for Defect Numbers of Closed Operators
Crossref DOI link: https://doi.org/10.1007/s11785-025-01861-w
Published Online: 2025-11-28
Published Print: 2026-01
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Fischbacher, Christoph
Gesztesy, Fritz
Littlejohn, Lance L.
Text and Data Mining valid from 2025-11-28
Version of Record valid from 2025-11-28
Article History
Received: 8 April 2025
Accepted: 30 October 2025
First Online: 28 November 2025
Declarations
:
: The authors declare no competing interests.