The behavior of the radical of the algebras generated by a semigroup of operators on Hilbert space
JOURNAL OF OPERATOR THEORY, cilt.57, sa.1, ss.19-34, 2007 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 57 Sayı: 1
- Basım Tarihi: 2007
- Dergi Adı: JOURNAL OF OPERATOR THEORY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.19-34
- Van Yüzüncü Yıl Üniversitesi Adresli: Evet
Özet
Let T = {T(t)}(t >= 0) be a continuous semigroup of contractions on a Hilbert space. We define A(T) as the closure of the set {(f) over cap (T) : f is an element of L-1 (R+)} with respect to the operator-norm topology, where (f) over cap (T) =