ICGT 2023
Wed 19 - Thu 20 July 2023 Leicester, United Kingdom
co-located with STAF 2023
Wed 19 Jul 2023 14:00 - 14:30 at Oak - ICGT Session 3: Theory Chair(s): Nicolas Behr

Quasitoposes encompass a wide range of structures, including various categories of graphs. They have proven to be a natural setting for reasoning about the metatheory of algebraic graph rewriting. In this paper we propose and motivate the notion of fuzzy presheaves, which generalises fuzzy sets and fuzzy graphs. We prove that fuzzy presheaves are rm-adhesive quasitoposes, proving our recent conjecture for fuzzy graphs. Furthermore, we show that simple fuzzy graphs categories are quasitoposes.

Wed 19 Jul

Displayed time zone: London change

13:30 - 15:00
ICGT Session 3: TheoryResearch Papers at Oak
Chair(s): Nicolas Behr CNRS, Université Paris Cité, IRIF

Remote Participants: Zoom Link, YouTube Livestream

13:30
30m
Talk
A Monoidal View on Fixpoint Checks
Research Papers
Paolo Baldan University of Padova, P: Richard Eggert University of Duisburg-Essen, Barbara König University of Duisburg-Essen, Timo Matt University Duisburg-Essen, Tommaso Padoan University of Padova
DOI Pre-print
14:00
30m
Talk
Fuzzy Presheaves are Quasitoposes
Research Papers
P: Aloïs Rosset Vrije Universiteit Amsterdam, Roy Overbeek Vrije Universiteit Amsterdam, Jörg Endrullis Vrije Universiteit Amsterdam
DOI File Attached
14:30
30m
Talk
Moving a Derivation Along a Derivation Preserves the Spine
Research Papers
P: Hans-Jörg Kreowski University of Bremen, Sabine Kuske University of Bremen, Aaron Lye University of Bremen, Aljoscha Windhorst University of Bremen
DOI