Title
Rewriting modulo symmetric monoidal structure.
Abstract
String diagrams are a powerful and intuitive graphical syntax for terms of symmetric monoidal categories (SMCs). They find many applications in computer science and are becoming increasingly relevant in other fields such as physics and control theory. An important role in many such approaches is played by equational theories of diagrams, typically oriented and applied as rewrite rules. This paper lays a comprehensive foundation for this form of rewriting. We interpret diagrams combinatorially as typed hypergraphs and establish the precise correspondence between diagram rewriting modulo the laws of SMCs on the one hand and double pushout (DPO) rewriting of hypergraphs, subject to a soundness condition called convexity, on the other. This result rests on a more general characterisation theorem in which we show that typed hypergraph DPO rewriting amounts to diagram rewriting modulo the laws of SMCs with a chosen special Frobenius structure. We illustrate our approach with a proof of termination for the theory of non-commutative bimonoids.
Year
DOI
Venue
2016
10.1145/2933575.2935316
LICS
Keywords
DocType
Volume
intuitive graphical syntax,symmetric monoidal categories,computer science,equational theories,rewrite rules,string diagrams,SMC,rewriting modulo symmetric monoidal structure,double pushout rewriting,DPO rewriting,typed hypergraph DPO rewriting,diagram rewriting modulo,Frobenius structure,non-commutative bimonoids
Conference
abs/1602.06771
ISSN
ISBN
Citations 
1043-6871
978-1-4503-4391-6
10
PageRank 
References 
Authors
0.61
21
5
Name
Order
Citations
PageRank
Filippo Bonchi157947.04
Fabio Gadducci277262.94
Aleks Kissinger317122.32
Paweł Sobociński460945.57
Fabio Zanasi511013.89