منابع مشابه
On KM-Arcs in Small Desarguesian Planes
In this paper we study the existence problem for KM-arcs in small Desarguesian planes. We establish a full classification of KMq,t-arcs for q 6 32, up to projective equivalence. We also construct a KM64,4-arc; as t = 4 was the only value for which the existence of a KM64,t-arc was unknown, this fully settles the existence problem for q 6 64.
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In these notes we are interested in the following fundamental question: “Given a thick generalized quadrangle S(x) with elation point (respectively center of transitivity) x , when does the set of all elations about x form a group?”. It was the general belief for a long time that this is usually the case. However, the goal of these notes is to show that this belief is wrong. To that end, we wil...
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We characterize the non-classical 4-dimensional elation Laguerre planes as precisely those 4-dimensional Laguerre planes of Kleinewillinghöfer type I.D.1. Furthermore, in the class of 2or 4-dimensional Laguerre planes or finite Laguerre planes of odd order, the non-miquelian elation Laguerre planes are precisely the Laguerre planes of Kleinewillinghöfer type D. MSC 2000: 51H15, 51B15, 51E25
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Futures studies is a value knowledge and has a two-way communication with the worldview, ideology and culture of nations. Humanities is one of the factors that influence the field of futures studies. Hence the human sciences itself could be the subject of future studies. In this study, we have tried to discuss the role of future studies in knowledge management in the field of humanities. Theref...
متن کاملt-Pancyclic Arcs in Tournaments
Let $T$ be a non-trivial tournament. An arc is emph{$t$-pancyclic} in $T$, if it is contained in a cycle of length $ell$ for every $tleq ell leq |V(T)|$. Let $p^t(T)$ denote the number of $t$-pancyclic arcs in $T$ and $h^t(T)$ the maximum number of $t$-pancyclic arcs contained in the same Hamiltonian cycle of $T$. Moon ({em J. Combin. Inform. System Sci.}, {bf 19} (1994), 207-214) showed that $...
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ژورنال
عنوان ژورنال: Combinatorica
سال: 2019
ISSN: 0209-9683,1439-6912
DOI: 10.1007/s00493-018-3806-1