Year: 2025
Type: article
Abstract: We study maximal representations of nonnegative sesquilinear forms in real or complex Hilbert spaces, that are not necessarily closed or even closable. We associate positive self-adjoint operators with such forms, in a sense similar to Kato’s representation theorems. In particular, we give a brief proof of the Friedrichs extension of a densely defined positive operator.
Authors: Zsigmond Tarcsay, Zoltán Sebestyén
Institutions: Eötvös Loránd University, Corvinus University of Budapest
Language: English
Subfield: Mathematical Physics
Field: Mathematics
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,090
Award: G3802914401
OpenAlex ID: W4414211732