{ "id": "2505.05788", "version": "v1", "published": "2025-05-09T05:11:34.000Z", "updated": "2025-05-09T05:11:34.000Z", "title": "$H^\\infty$ Functional Calculus for a Commuting tuple of $\\text{Ritt}_{\\text{E}}$ Operators", "authors": [ "Suman Mondal", "Subhajit Palai", "Samya Kumar Ray" ], "comment": "25 pages, 1 figure", "categories": [ "math.FA" ], "abstract": "In this article, we develop a framework for the joint functional calculus of commuting tuples of $\\text{Ritt}_{\\text{E}}$ operators on Banach spaces. We establish a transfer principle that relates the bounded holomorphic functional calculus for tuples of $\\text{Ritt}_{\\text{E}}$ operators to that of their associated sectorial counterparts. In addition, we prove a joint dilation theorem for commuting tuples of $\\text{Ritt}_{\\text{E}}$ operators on a broad class of Banach spaces. As a key application, we obtain an equivalent set of criteria on $L^p$-spaces for $1