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Browsing Makale Koleksiyonu by Author "Keskin, R;"

Browsing Makale Koleksiyonu by Author "Keskin, R;"

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  • A note on some Fuchsian groups 
    Keskin, Refik (SPRINGER, 2005)
    In this paper, we introduce some Fuchsian groups and calculate their parabolic class numbers. In addition, we give two conjectures concerning with the parabolic class number.
  • A. note on some modular subgroups 
    Keskin, Refik (ROCKY MT MATH CONSORTIUM, 2005)
    In this study, we introduce some modular subgroups and we calculate parabolic class numbers of those groups. In addition to this, we gave a nice formula for the parabolic class number of Gamma(0)(n(2)).
  • PARABOLIC CLASS NUMBER OF A SUBGROUP OF THE NORMALIZER OF Gamma(0)(m) 
    Keskin, Refik (UNIV MISKOLC INST MATH, 2012)
    In this study, we introduce a subgroup of the normalizer of Gamma(0)(m) and we calculate parabolic class number of this group.
  • Solutions of some quadratic Diophantine equations 
    Keskin, Refik (PERGAMON-ELSEVIER SCIENCE LTD, 2010)
    In this study, we investigate positive integer solutions of the Diophantine equations x(2) - kxy(sic)y(2)(sic)x = 0 and x(2)-kxy-y(2)(sic)y = 0. It is shown that when k > 3,x2-kxy+y(2)+x = 0 has no positive integer solutions ...
  • Suborbital graphs for the normalizer of Gamma(0)(m) 
    Keskin, Refik (ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2006)
    In this study, we characterize all circuits in the suborbital graph for the normalizer of Gamma(0) (m) when in is a square-free positive integer. We propose a conjecture concerning the suborbital graphs. (C) 2004 Elsevier ...