doi:10.1007/s00009-020-01670-9engGarvin, AntonioGonzalez-Diaz, RocioMarco Buzunariz, Miguel AngelMedrano, BelenMaking Sullivan algebras minimal through chain contractionsART-2021-121983In this note, we provide an algorithm that, starting with a Sullivan algebra gives us its minimal model. More concretely, taking as input a (non-minimal) Sullivan algebra A with an ordered finite set of generators preserving the filtration defined on A, we obtain as output a minimal Sullivan algebra with the same rational cohomology as A. This algorithm is a kind of modified AT-model algorithm used, in the past, to compute a chain contraction providing other kinds of topological information such as (co)homology, cup products on cohomology and persistent homology.2021http://zaguan.unizar.es/record/12755610.1007/s00009-020-01670-9http://zaguan.unizar.es/record/127556oai:zaguan.unizar.es:127556Mediterranean Journal of Mathematics 18, 43 (2021), [16 pp.]All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess