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math.CO2022
Qualitative representations of chromatic algebras
Badriah Al Juaid, Marcel Jackson, James Koussas +1
Conventional Ramsey-theoretic investigations for edge-colourings of complete graphs are framed around avoidance of certain configurations. Motivated by considerations arising in th…
math.CO2013
Complexity and polymorphisms for digraph constraint problems under some basic constructions
Marcel Jackson, Tomasz Kowalski, Todd Niven
The role of polymorphisms in determining the complexity of constraint satisfaction problems is well established. In this context we study the stability of CSP complexity and polymo…