Complexities of relational structures

Year, pages: 2015, 229 - 246

The relational complexity, introduced by G. Cherlin, G. Martin, and D. Saracino, is a measure of ultrahomogeneity of a relational structure. It provides an information on minimal arity of additional invariant relations needed to turn given structure into an ltrahomogeneous one. The original motivation was group theory. This work focuses more on structures and provides an alternative approach. Our study is motivated by related concept of lift complexity studied by Hubička and Nešetřil

Hartman, D., Hubička, J., Nešetřil, J. 2015. Complexities of relational structures. In Mathematica Slovaca, vol. 65, no.2, pp. 229-246. 0139-9918. DOI: https://doi.org/10.1515/ms-2015-0019

Hartman, D., Hubička, J., Nešetřil, J. (2015). Complexities of relational structures. Mathematica Slovaca, 65(2), 229-246. 0139-9918. DOI: https://doi.org/10.1515/ms-2015-0019