Keywords: projective planes, balanced upper chromatic number, difference sets, planar functions, probabilistic methodPublished in RUP: 18.01.2021; Views: 1027; Downloads: 36 Link to full text
Keywords: blocking sets, Baer subplanes, relative blocking sets, fractional cover, fractional covering numberPublished in RUP: 01.08.2019; Views: 1487; Downloads: 154 Link to full text
Keywords: finite projective plane, arc, Hall planePublished in RUP: 21.01.2019; Views: 2224; Downloads: 190 Link to full text
Abstract: Semiovals which are contained in the union of three concurrent lines are studied. The notion of a strong semioval is introduced, and a complete classification of these objects in PG▫$(2,p)$▫ and PG▫$(2,p^2)$▫, ▫$p$▫ an odd prime, is given.Keywords: mathematics, semioval, group factorizationPublished in RUP: 15.10.2013; Views: 2913; Downloads: 130 Link to full text