activity
20172025
most citedThe algebra of entanglement and the geometry of composition

41 citations · 48 across the 14 of their papers we have counts for

collaborators

15 papers

math.CT2025

Semi-strictification of -categories

Clémence Chanavat, Amar Hadzihasanovic

We prove the first equivalence between a weak non-algebraic model and a semi-strict algebraic model of -categories. This takes the form of a natural semi-strictificati…

math.AT2024

Model structures for diagrammatic -categories

Clémence Chanavat, Amar Hadzihasanovic

Diagrammatic sets admit a notion of internal equivalence in the sense of coinductive weak invertibility, with similar properties to its analogue in strict -categories. We constr…

math.CT2024

Equivalences in diagrammatic sets

Clémence Chanavat, Amar Hadzihasanovic

We show that diagrammatic sets, a topologically sound alternative to polygraphs and strict -categories, admit an internal notion of equivalence in the sense of coinductive weak…

math.CT2024

Acyclicity conditions on pasting diagrams

Amar Hadzihasanovic, Diana Kessler

We study various acyclicity conditions on higher-categorical pasting diagrams in the combinatorial framework of regular directed complexes. We present an apparently weakest acyclic…

math.AT2024

Diagrammatic sets as a model of homotopy types

Clémence Chanavat, Amar Hadzihasanovic

Diagrammatic sets are presheaves on a rich category of shapes, whose definition is motivated by combinatorial topology and higher-dimensional diagram rewriting. These shapes includ…

math.CT2024

A model for the coherent walking -equivalence

Amar Hadzihasanovic, Félix Loubaton, Viktoriya Ozornova +1

We prove that a certain -category, which was constructed in previous work by the third and fourth author, is a model for the fully coherent walking -equivalence. Further, app…

math.CT2024

Combinatorics of higher-categorical diagrams

Amar Hadzihasanovic

This is a book on higher-categorical diagrams, including pasting diagrams. It aims to provide a thorough and modern reference on the subject, collecting, revisiting and expanding r…

math.CT2023

Higher-dimensional subdiagram matching

Amar Hadzihasanovic, Diana Kessler

Higher-dimensional rewriting is founded on a duality of rewrite systems and cell complexes, connecting computational mathematics to higher categories and homotopy theory: the two s…

math.CT2022★ 2 cited

Data Structures for Topologically Sound Higher-Dimensional Diagram Rewriting

Amar Hadzihasanovic, Diana Kessler

We present a computational implementation of diagrammatic sets, a model of higher-dimensional diagram rewriting that is "topologically sound": diagrams admit a functorial interpret…

math.CT2021

The smash product of monoidal theories

Amar Hadzihasanovic

The tensor product of props was defined by Hackney and Robertson as an extension of the Boardman-Vogt product of operads to more general monoidal theories. Theories that factor as…

math.CT2020★ 3 cited

Diagrammatic sets and rewriting in weak higher categories

Amar Hadzihasanovic

We revisit Kapranov and Voevodsky's idea of spaces modelled on combinatorial pasting diagrams, now as a framework for higher-dimensional rewriting and the basis of a model of weak…

math.CT2019★ 2 cited

Representable diagrammatic sets as a model of weak higher categories

Amar Hadzihasanovic

Developing an idea of Kapranov and Voevodsky, we introduce a model of weak omega-categories based on directed complexes, combinatorial presentations of pasting diagrams. We propose…

math.CT2018

Weak units, universal cells, and coherence via universality for bicategories

Amar Hadzihasanovic

Poly-bicategories generalise planar polycategories in the same way as bicategories generalise monoidal categories. In a poly-bicategory, the existence of enough 2-cells satisfying…

math.CT2017★ 41 cited

The algebra of entanglement and the geometry of composition

Amar Hadzihasanovic

String diagrams turn algebraic equations into topological moves that have recurring shapes, involving the sliding of one diagram past another. We individuate, at the root of this f…

math.CT2017

A Topological Perspective on Interacting Algebraic Theories

Amar Hadzihasanovic

Techniques from higher categories and higher-dimensional rewriting are becoming increasingly important for understanding the finer, computational properties of higher algebraic the…