User contributions for 2804:14C:A1:910C:0:0:0:1000
For 2804:14C:A1:910C:0:0:0:1000 talk block log logs filter log
14 May 2024
- 15:1315:13, 14 May 2024 diff hist −37 Unbounded operator →Symmetric operators and self-adjoint operators: The application <math>x \mapsto \langle Tx \mid x \rangle</math> is not a quadratic form when we consider the most widely accepted definition for this term (see https://en.wikipedia.org/wiki/Quadratic_form#Definitions) and the cited reference does not claim that this application is a quadratic form. Such a kind of application is sometimes called a "Hermitian quadratic form", but this terminology does not seem to be standard. current
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