𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A class of shape invariant fields

✍ Scribed by F. Gori; G. Guattari; C. Palma; C. Padovani


Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
341 KB
Volume
66
Category
Article
ISSN
0030-4018

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


A Class of Invariant Unitary Operators
✍ Luis BΓ‘ez-Duarte πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 117 KB

Let H=L 2 ((0, ), dx), and K \* f (x)= f (\*x), for \*>0, f # H. An invariant operator on H is one commuting with all the K \* . A skew root is a self-adjoint, unitary operator on H satisfying T 2 =I, and TK \* =K \* \*T, for all \*>0. A generator g is an element of H such that the smallest, closed