The behavior of the radical of the algebras generated by a semigroup of operators on Hilbert space


Mustafayev H.

JOURNAL OF OPERATOR THEORY, cilt.57, sa.1, ss.19-34, 2007 (SCI-Expanded) identifier identifier

  • 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) =