Parabolic Non-Automorphism Induced Toeplitz-Composition C*-Algebras with Piece-wise Quasi-Continuous symbols

---

Gul U.

COMPLEX ANALYSIS AND OPERATOR THEORY, cilt.8, sa.1, ss.111-127, 2014 (SCI-Expanded, Scopus)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 8 Sayı: 1
• Basım Tarihi: 2014
• Doi Numarası: 10.1007/s11785-012-0276-0
• Dergi Adı: COMPLEX ANALYSIS AND OPERATOR THEORY
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.111-127
• Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
• Hacettepe Üniversitesi Adresli: Evet

Özet

In this paper we consider the C*-algebra generated by Toeplitz operators with piece-wise quasi-continuous symbols and a composition operator induced by a parabolic linear fractional non-automorphism symbol modulo compact operators on the Hilbert-Hardy space . This C*-algebra is commutative. We characterize its maximal ideal space. We apply our results to the question of determining the essential spectra of linear combinations of a class of composition operators and Toeplitz operators.