DSpace Arşivi :: by Yazar "Ozcan, A. Fatih" değerine göre listeleniyor

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Comparison of near sets by means of a chain of features
(Hacettepe Univ, Fac Sci, 2016) Ozcan, A. Fatih; Bagirmaz, Nurettin
If the number of features of objects in a perceptual system, is large, then the objects can be known better and comparable. In this paper basically, we form a chain of feature sets that describe objects and then by means of this chain of feature sets, we investigate the nearness of sets and near sets in a perceptual system.
Topological ring-groupoids and liftings
(Shiraz Univ, 2006) Ozcan, A. Fatih; Icen, I.; Gursoy, M. Habil
We prove that the set of homotopy classes of the paths in a topological ring is a topological ring object (called topological ring-groupoid). Let p : (X) over bar -> X be a covering map and let X be a topological ring. We define a category. UTRCov(X) of coverings of X in which both X and have universal coverings, and a category UTRGdCov(pi X-1) of coverings of topological ring-groupoid pi X-1, in which X and (R) over bar (0) = (X) over bar have universal coverings, and then prove the equivalence of these categories. We also prove that the topological ring structure of a topological ring-groupoid lifts to a universal topological covering groupoid.