Llano, Bernardo; Olsen, Mika Disproof of a conjecture of Neumann-Lara. (English) Zbl 1372.05089 Electron. J. Comb. 24, No. 4, Research Paper P4.5, 15 p. (2017). MSC: 05C20 05C15 PDFBibTeX XMLCite \textit{B. Llano} and \textit{M. Olsen}, Electron. J. Comb. 24, No. 4, Research Paper P4.5, 15 p. (2017; Zbl 1372.05089) Full Text: Link
Illanes, Alejandro; Ordoñez, Norberto Weak \(n\)-ods, \(n\)-ods and strong \(n\)-ods. (English) Zbl 1377.54037 Topology Appl. 230, 531-538 (2017). MSC: 54F15 54B20 54F65 PDFBibTeX XMLCite \textit{A. Illanes} and \textit{N. Ordoñez}, Topology Appl. 230, 531--538 (2017; Zbl 1377.54037) Full Text: DOI
Figueroa, Ana Paulina; Hernández-Cruz, César; Olsen, Mika The minimum feedback arc set problem and the acyclic disconnection for graphs. (English) Zbl 1361.05047 Discrete Math. 340, No. 7, 1514-1521 (2017). MSC: 05C15 05C35 05C10 PDFBibTeX XMLCite \textit{A. P. Figueroa} et al., Discrete Math. 340, No. 7, 1514--1521 (2017; Zbl 1361.05047) Full Text: DOI