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Tensor Product of Dimension Effect Algebras Anna JenčováSylvia Pulmannová OriginalPaper 21 November 2020 Pages: 377 - 389
Which Distributive Lattices are Lattices of Open Sets of P-Spaces? Jinbo YangXiaoyong Xi OriginalPaper 10 November 2020 Pages: 391 - 399
Definability in the Substructure Ordering of Finite Directed Graphs Ádám Kunos OriginalPaper 23 January 2021 Pages: 401 - 420
Ptolemaic and Planar Cover-incomparability Graphs Arun AnilManoj ChangatBaiju Sukumaran OriginalPaper 30 January 2021 Pages: 421 - 439
Minimum Weight Flat Antichains of Subsets Jerrold R. GriggsSven HartmannIan T. Roberts OriginalPaper 25 January 2021 Pages: 441 - 453
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Enumerative Combinatorics of Intervals in the Dyck Pattern Poset Antonio BerniniMatteo CervettiEinar Steingrímsson OriginalPaper Open access 03 April 2021 Pages: 473 - 487
The Voter Basis and the Admissibility of Tree Characters Andrew BeveridgeIan Calaway OriginalPaper 12 February 2021 Pages: 489 - 514
On Properly Ordered Coloring of Vertices in a Vertex-Weighted Graph Shinya FujitaSergey KitaevLi-Da Tong OriginalPaper 22 February 2021 Pages: 515 - 525
Sectionally Pseudocomplemented Posets Ivan ChajdaHelmut LängerJan Paseka OriginalPaper Open access 10 March 2021 Pages: 527 - 546