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math.FA2026
Composition operators on de Branges spaces of entire functions
Bharti Garg, Subhankar Mahapatra, Santanu Sarkar
This paper aims to study the boundedness and compactness of composition operators from model spaces to the Hardy Hilbert spaces in the upper half-plane. Consequently, we investigat…
math.FA2026
Vector valued de Branges spaces, CNU contractions and functional models
Bharti Garg, Santanu Sarkar
In this paper, we study vector valued de Branges spaces associated with a de Branges operator, defined as a pair of Fredholm operator valued analytic functions on a domain symmetri…