• MakaleYayıncıda açık erişim2026
    Yİ-DARBOUX SLANT HELICES ON SURFACES

    Tosun, Ceyda; Kocayigit, Huseyin; Aydin, Tuba agirman

    In this study, a new class of surface curves, namely Yi-Darboux slant helices, is investigated. The conditions under which a surface curve is a iY-Darboux slant helix with respect to the Osculating Darboux (OD), Normal Darboux (ND), and Rectifying Darboux (RD) frames are established, and several characterizations are obtained. In particular, necessary and sufficient conditions are derived in terms of the curvature functions associated with these frames. Furthermore, relationships between iY-Darboux slant helices and classical helices and slant helices are established for special surface curves, including geodesics, asymptotic curves, and lines of curvature. Concrete examples on conical and cylindrical surfaces are also presented to illustrate the theoretical results.

  • MakaleYalnız künye2022
    TIMELIKE HELICES IN THE SEMI-EUCLIDEAN SPACE E24

    Aydin, Tuba Agirman; Ayazoglu, Rabil; Kocayigit, Huseyin

    In this paper, we define timelike curves in R-2(4) and characterize such curves in terms of Frenet frame. Also, we examine the timelike helices of R-2(4), taking into account their curvatures. In addition, we study timelike slant helices, timelike B-1-slant helices, timelike B-2-slant helices in four dimensional semi-Euclidean space, R-2(4). And then we obtain an approximate solution for the timelike B-1 slant helix with Taylor matrix collocation method.

    AtıfWoS1
    Web of Scienceİncele
  • MakaleAçık Erişim2019Scopus SJRQ3
    An explicit characterization of spherical curves according to Bishop frame and an approximately solution

    Balki Okullu, Pinar; Kocayigit, Huseyin; Agirman Aydin, Tuba

    In this paper, spherical curves are studied by using Bishop frame. First, the differential equation characterizing the spherical curves is given. Then, we exhibit that the position vector of a curve which is lying on a sphere satisfies a third-order linear differential equation. Then we solve this linear differential equation by using Bernstein series solution method.

    AtıfScopus2OpenAlex1
    ScopusWeb of Scienceİncele