ELFT HÍRADÓ

[tcsaba <tcsaba AT eik.bme.hu>]

                   M E G H Í V Ó - I N V I T A T I O N

    Seminar Series of the Department of Theoretical Physics at the
           Budapest University of Technology and Economics


                           Balázs Király
                (Department of Theoretical Physics,
           Budapest University of Technology and Economics)


    Evolutionary elementary coordination games on a square lattice


In many-participant evolutionary game theoretic models pair interactions 
are described by many-parameter matrix games. Recent studies have 
indicated that these matrices represent combinations of four basic types 
of interactions: self- and cross-dependent, coordination-type, and 
cyclic games. Games with cyclic components are not potential games. 
Strategy distributions of multiagent evolutionary potential games follow 
the Boltzmann distribution if the evolution is governed by a properly 
chosen rule, which means that the tools and methods of statistical 
physics can be used to investigate the macroscopic behaviour of such 
systems. We study simple multiagent logit-rule-driven evolutionary 
potential games on a square lattice, and apply some of these methods to 
investigate their equilibrium properties and their phase transitions. We 
find that in elementary coordination games, which closely resemble 
Ising-type models, the order of the phase transition is determined by 
the number of available strategies. The introduction of different 
self-dependent game components can be used to change the critical 
temperature and the order of the phase transition, and it can even 
abolish the transition.


Időpont: 2016. október 7. péntek, 10:15
Helyszín: BME Fizikai Intézet, Elméleti Fizika Tanszék,
Budafoki út 8. F-épület, III lépcsőház, szemináriumi szoba