Kálmán Györy

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Recently, Akiyama et al. introduced so-called shift radix systems. These simple dynamical systems form a common generalization of several well-known notions of number systems like beta numeration and canonical number systems. In the present paper we generalize shift radix systems as follows: for (r 1 ,. .. , r d) ∈ C d we study mappings Z[i] d → Z[i] d(More)
Authors examined 17 cases of hiatal hernia, out of which 13 proved to have mitral valve prolapse. The diagnosis was based on auscultation, ECG and echocardiographic examination. The incidence of mitral valve prolapse (76.5%) found in this study in considerably high. Up to now no such relationship has been reported in the literature. At the moment it could(More)
We study the distribution in space of the integral solutions to an integral decomposable form equation, by considering the images of these solutions under central projection onto a unit ball. If we think of the solutions as stars in the night sky, we ask what constellations are visible from the earth (the unit ball). Answers are given for a large class of(More)
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