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Article

The Heteromorphic Approach to Adjunctions: Theory and History

Faculty of Social Sciences, University of Ljubljana, 1000 Ljubljana, Slovenia
Mathematics 2024, 12(2), 311; https://doi.org/10.3390/math12020311
Submission received: 18 November 2023 / Accepted: 11 January 2024 / Published: 18 January 2024
(This article belongs to the Section E4: Mathematical Physics)

Abstract

Mallios and Zafiris emphasize that adjoint functors, or adjunctions, are not only “ubiquitous” in category theory but also characterize the naturality of their approach to physical geometry. Hence, in this paper, the history and theory of adjoint functors is investigated. Where do adjoint functors come from mathematically, and how did the concept develop historically?
Keywords: adjunctions; adjoint functors; heteromorphisms; het-bifunctors; distributors; profunctors adjunctions; adjoint functors; heteromorphisms; het-bifunctors; distributors; profunctors

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MDPI and ACS Style

Ellerman, D. The Heteromorphic Approach to Adjunctions: Theory and History. Mathematics 2024, 12, 311. https://doi.org/10.3390/math12020311

AMA Style

Ellerman D. The Heteromorphic Approach to Adjunctions: Theory and History. Mathematics. 2024; 12(2):311. https://doi.org/10.3390/math12020311

Chicago/Turabian Style

Ellerman, David. 2024. "The Heteromorphic Approach to Adjunctions: Theory and History" Mathematics 12, no. 2: 311. https://doi.org/10.3390/math12020311

APA Style

Ellerman, D. (2024). The Heteromorphic Approach to Adjunctions: Theory and History. Mathematics, 12(2), 311. https://doi.org/10.3390/math12020311

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