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    <subfield code="a">Making Sullivan algebras minimal through chain contractions</subfield>
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    <subfield code="a">In 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.</subfield>
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    <subfield code="g">18, 43 (2021), [16 pp.]</subfield>
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