Research article

Centro-affine dual curve pair of pre-tangent-dual and pre-normal-dual curves

  • Published: 04 March 2026
  • MSC : Primary: 53A15; Secondary: 53A04, 57R45, 58K05

  • This study examines a new transformation, called the equi-centro-transform, for curves defined within the frame of centro-affine differential geometry. By creating centro-affine dual curves of the pre-tangent-dual and pre-normal-dual curves under this transformation, the relationship between dual curve pairs is investigated geometrically and analytically. The primary objective of the study is to characterize the singularities that arise of a given curve and its centro-affine dual. Furthermore, the necessary and sufficient conditions for the formation of singularities in dual curve pairs are determined, and the behavior of singularities changing type under the transformation is analyzed in detail. Moreover, after a detailed examination of the pre-tangent dual curve and the pre-normal dual curve, these curves are compared with other related curve types to reveal their geometric relationships. At the end of the study, the theorems presented are supported with appropriate examples, the obtained theoretical results are concretized, and graphs of all examined curve types are drawn and presented visually using MATLAB.

    Citation: Anıl Altınkaya. Centro-affine dual curve pair of pre-tangent-dual and pre-normal-dual curves[J]. AIMS Mathematics, 2026, 11(3): 5476-5491. doi: 10.3934/math.2026226

    Related Papers:

  • This study examines a new transformation, called the equi-centro-transform, for curves defined within the frame of centro-affine differential geometry. By creating centro-affine dual curves of the pre-tangent-dual and pre-normal-dual curves under this transformation, the relationship between dual curve pairs is investigated geometrically and analytically. The primary objective of the study is to characterize the singularities that arise of a given curve and its centro-affine dual. Furthermore, the necessary and sufficient conditions for the formation of singularities in dual curve pairs are determined, and the behavior of singularities changing type under the transformation is analyzed in detail. Moreover, after a detailed examination of the pre-tangent dual curve and the pre-normal dual curve, these curves are compared with other related curve types to reveal their geometric relationships. At the end of the study, the theorems presented are supported with appropriate examples, the obtained theoretical results are concretized, and graphs of all examined curve types are drawn and presented visually using MATLAB.



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    [1] W. Blaschke, Vorlesungen über Differentialgeometrie II, Berlin: Springer, 1923. https://doi.org/10.1007/978-3-642-47392-0
    [2] P. J. Giblin, T. Sano, Generic equi-centro-affine differential geometry of plane curves, Topol. Appl., 159 (2012), 476–483. https://doi.org/10.1016/j.topol.2011.09.022 doi: 10.1016/j.topol.2011.09.022
    [3] Y. Li, P. Li, D. Pei, Curves in equi-centro-affine plane, Mediterr. J. Math., 22 (2025), 151. https://doi.org/10.1007/s00009-025-02923-1 doi: 10.1007/s00009-025-02923-1
    [4] Y. Li, D. Pei, Generic equi-centro-affine differential geometry of position-dual and tangent-dual curves, J. Geom. Phys., 218 (2025), 105676. https://doi.org/10.1016/j.geomphys.2025.105676 doi: 10.1016/j.geomphys.2025.105676
    [5] Y. Li, D. Pei, Pedal curves of frontals in the Euclidean plane, Math. Meth. Appl. Sci., 41 (2018), 1988–1997. https://doi.org/10.1002/mma.4724 doi: 10.1002/mma.4724
    [6] S. Zhang, P. Li, D. Pei, Pedal and contrapedal curves in equi-affine plane, J. Math. Anal. Appl., 538 (2024), 128427. https://doi.org/10.1016/j.jmaa.2024.128427 doi: 10.1016/j.jmaa.2024.128427
    [7] X. Zhao, D. Pei, Pedal curves of the mixed-type curves in the Lorentz–Minkowski plane, Mathematics, 9 (2021), 2852. https://doi.org/10.3390/math9222852 doi: 10.3390/math9222852
    [8] O. O. Tuncer, H. Ceyhan, İ. Gök, F. N. Ekmekci, Notes on pedal and contrapedal curves of fronts in the Euclidean plane, Math. Meth. Appl. Sci., 41 (2018), 1–16. https://doi.org/10.1002/mma.5056 doi: 10.1002/mma.5056
    [9] M. Li, K. Yao, P. Li, D. Pei, Pedal curves of non-lightlike curves in Minkowski 3-space, Symmetry, 14 (2022), 59. https://doi.org/10.3390/sym14010059 doi: 10.3390/sym14010059
    [10] K. Yao, M. Li, E. Li, D. Pei, Pedal and contrapedal curves of framed immersions in the Euclidean 3-space, Mediterr. J. Math., 20 (2023), 204. https://doi.org/10.1007/s00009-023-02408-z doi: 10.1007/s00009-023-02408-z
    [11] Y. Li, O. O. Tuncer, On (contra)pedals and (anti)orthotomics of frontals in de Sitter 2-space, Math. Meth. Appl. Sci., 46 (2023), 11157–11171. https://doi.org/10.1002/mma.9173 doi: 10.1002/mma.9173
    [12] F. E. Kaya, Differential geometric aspects of pedal curves on surfaces, J. Math., 2024 (2024), 237091. https://doi.org/10.1155/2024/6237091 doi: 10.1155/2024/6237091
    [13] D. Davis, Generic affine differential geometry of curves in $\mathbb{R}^n$, Proc. Roy. Soc. Edinburgh Sect. A, 136 (2006), 1195–1205. https://doi.org/10.1017/S0308210500004947 doi: 10.1017/S0308210500004947
    [14] K. Nomizu, T. Sasaki, Affine Differential Geometry: Geometry of Affine Immersions, Cambridge: Cambridge University Press, 1994.
    [15] J. W. Bruce, P. J. Giblin, Curves and Singularities, 2 Eds., Cambridge: Cambridge University Press, 1992. https://doi.org/10.1017/CBO9781139172615
    [16] S. Zhang, P. Li, D. Pei, Affine dual curve pair under the equi-transform of affine framed curve, J. Math. Anal. Appl., 554 (2026), 130014. https://doi.org/10.1016/j.jmaa.2025.130014 doi: 10.1016/j.jmaa.2025.130014
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