Invariant subspaces of the Cesaro operator

التفاصيل البيبلوغرافية
العنوان: Invariant subspaces of the Cesaro operator
المؤلفون: Gallardo-Gutierrez, Eva A., Partington, Jonathan R., Ross, William T.
سنة النشر: 2023
المجموعة: Mathematics
مصطلحات موضوعية: Mathematics - Functional Analysis, 47A15, 47A55, 47B15
الوصف: This paper explores various classes of invariant subspaces of the classical Ces\`{a}ro operator $C$ on the Hardy space $H^2$. We provide a new characterization of the finite co-dimensional $C$-invariant subspaces, based on earlier work of the first two authors, and determine exactly which model spaces are $C$-invariant subspaces. We also describe the $C$-invariant subspaces contained in model spaces and establish that they are all cyclic. Along the way, we re-examine an associated Hilbert space of analytic functions on the unit disk developed by Kriete and Trutt. We also make a connection between the adjoint of the Ces\`{a}ro operator and certain composition operators on $H^2$ which have universal translates in the sense of Rota.
Comment: 36 pages
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2307.06923
رقم الأكسشن: edsarx.2307.06923
قاعدة البيانات: arXiv