HilbMult: A Banach-Enriched Multicategory for Operator Algebras

Fuente: arXiv
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Auteur principal: Chang, Shih-Yu
Format: Preprint
Publié: 2025
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author Chang, Shih-Yu
author_facet Chang, Shih-Yu
contents Category and multicategory theory provide abstract frameworks for describing structures and their compositions, with multicategories extending traditional categories to handle multi-input operations. These theories enable modular reasoning and coherent composition of complex systems, and have found applications in computer science, physics, and mathematics, including programming language semantics, quantum processes, tensor networks, operads, and higher algebra. Operator theory, in contrast, studies linear and multilinear transformations in functional spaces, forming the analytic backbone of modern analysis and quantum mechanics, with applications ranging from signal processing and control theory to data science. This paper explores the synergy between these two areas by showing how operator theory provides concrete analytic structures that naturally enrich multicategories, while multicategory theory supplies a unifying framework for organizing multi-input operators and ensuring coherence in complex networks. We develop a comprehensive categorical framework integrating operator theory with multicategories, introducing a symmetric monoidal multicategory of Hilbert spaces with bounded multilinear maps and establishing its enrichment and coherence properties. The framework includes a functorial spectral theorem, covariance under unitary transformations, and universality as a semantic target, providing a unified language for linking analytic structure, categorical semantics, and operator representations. This work lays the foundation for a broader research program uniting operator theory, category theory, and noncommutative geometry.
format Preprint
id arxiv_https___arxiv_org_abs_2511_13674
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle HilbMult: A Banach-Enriched Multicategory for Operator Algebras
Chang, Shih-Yu
Category Theory
Operator Algebras
Category and multicategory theory provide abstract frameworks for describing structures and their compositions, with multicategories extending traditional categories to handle multi-input operations. These theories enable modular reasoning and coherent composition of complex systems, and have found applications in computer science, physics, and mathematics, including programming language semantics, quantum processes, tensor networks, operads, and higher algebra. Operator theory, in contrast, studies linear and multilinear transformations in functional spaces, forming the analytic backbone of modern analysis and quantum mechanics, with applications ranging from signal processing and control theory to data science. This paper explores the synergy between these two areas by showing how operator theory provides concrete analytic structures that naturally enrich multicategories, while multicategory theory supplies a unifying framework for organizing multi-input operators and ensuring coherence in complex networks. We develop a comprehensive categorical framework integrating operator theory with multicategories, introducing a symmetric monoidal multicategory of Hilbert spaces with bounded multilinear maps and establishing its enrichment and coherence properties. The framework includes a functorial spectral theorem, covariance under unitary transformations, and universality as a semantic target, providing a unified language for linking analytic structure, categorical semantics, and operator representations. This work lays the foundation for a broader research program uniting operator theory, category theory, and noncommutative geometry.
title HilbMult: A Banach-Enriched Multicategory for Operator Algebras
topic Category Theory
Operator Algebras
url https://arxiv.org/abs/2511.13674