Complex Analysis and Operator Theory (CAOT) is devoted to the publication of current research developments in the closely related fields of complex analysis and operator theory as well as in applications to system theory, harmonic analysis, probability, statistics, learning theory, mathematical physics and other related fields. Articles using the theory of reproducing kernel spaces are in particular welcomed. CAOT is organised in the following six sections, which are published in the form of “topical collections”: Higher Dimensional Geometric Function Theory and Hypercomplex Analysis Infinite-dimensional Analysis and Non-commutative Theory Linear Operators and Linear Systems Operator Theory and Harmonic Analysis Reproducing Kernel Spaces and Applications Spectral Theory and Operators in Mathematical Physics Accepted papers will be published in the most appropriate section. Bibliographic Data Complex Anal. Oper. Theory First published in 2007 1 volume per year, 8 issues per volume approx. 2600 pages per volume Format: 15.5 x 23.5 cm ISSN 1661-8254 (print) ISSN 1661-8262 (electronic) AMS Mathematical Citation Quotient (MCQ): 0.59 (2023) .