Search Results - subject:"Acyclic orientations"

On the phase transitions of graph coloring and independent sets

Barbosa, Valmir C.; Ferreira, Rubens G. - In: Physica A: Statistical Mechanics and its Applications 343 (2004) C, pp. 401-423

cardinality in a graph. In particular, we investigate the role of the acyclic orientations of the graph in the hardness of finding … denser random graphs, the fraction of acyclic orientations that are “shortest” peaks when the chromatic number increases, and … the “widest” acyclic orientations and the independence number. …

Persistent link: https://www.econbiz.de/10011057013

NEUTRAL EVOLUTION AND MUTATION RATES OF SEQUENTIAL DYNAMICAL SYSTEMS

MORTVEIT, H. S.; REIDYS, C. M. - In: Advances in Complex Systems (ACS) 07 (2004) 03, pp. 395-418

In this paper we study the evolution of sequential dynamical systems $(\mathsf{SDS})$ as a result of the erroneous replication of the SDS words. An $\mathsf{SDS}$ consists of (a) a finite, labeled graph Y in which each vertex has a state, (b) a vertex labeled sequence of functions (Fvi,Y), and...

Persistent link: https://www.econbiz.de/10005080927