Recent Submissions

  • Cardiohelicoidal surfaces 

    Güler, Erhan (2019-09-06)
    Geometers have been working the curve theory and the surface theory for hundreds of years. We see good works for the theories in the literature. In this work, we introduce cardiohelicoidal surface in the three dimensional ...
  • Deltohelicoidal surfaces 

    Güler, Erhan (2019-09-06)
    The surface theory has been working by many mathematicians, and also geometers for hundreds of years. We meet nice papers and books for the theory in the literature. In this paper, we consider deltohelicoidal surface in ...
  • Helicoidal surface of logaritmic spiral type in 3-space 

    Güler, Erhan; Kişi, Ömer (International Conference on Computational Mathematics and Engineering Sciences, 2019)
    In this paper, we study the logaritmic spiral-type helicoidal surface in Euclidean 3-space. We obtain logaritmic spiral-type helicoidal surface with some figures, and calculate its curvatures.
  • Astrohelicoidal hypersurfaces in 4-space 

    Güler, Erhan; Kişi, Ömer (International Conference on Mathematics and Mathematics Education, 2019)
    We consider an astrohelicoidal hypersurface which its profile curve has astroid curve in the four dimensional Euclidean space E4. We also calculate Gaussian curvature and the mean curvature, and Weingarten relation of the ...
  • One sided Henry Smith surface 

    Güler, Erhan; Kişi, Ömer (International Conference on Computational Mathematics and Engineering Sciences, 2019)
    We focus differential geometry of the Henry Smith surface in the three dimensional Euclidean space. We calculate the Gaussian and the mean curvatures of the surface, drawing its figure. In addition, we find algebraic ...
  • Astrohelicoidal surfaces 

    Güler, Erhan; Kişi, Ömer (International Conference on Mathematics and Mathematics Education, 2019)
    We construct an astrohelicoidal surface which its profile curve has astroid curve in the three dimensional Euclidean space E3. We also find Gaussian curvature and the mean curvature, and Weingarten relation of the surface ...
  • Ulisse dini-type helicoidal hypersurface 4-space 

    Güler, Erhan; Gümüşok Karaalp, Ayçın (Ordu Üniversitesi, 2018)
    We considerUlisse Dini-type helicoidal hypersurface in Euclidean 4-space E4.We give some basic notions of the fourdimensional Euclidean geometry in section 2.In section 3, we consider Ulisse Dini helicoidal hypersurface.We ...
  • Ulisse dini-type helicoidal surface in 3-space 

    Güler, Erhan; Gümüşok Karaalp, Ayçın (Ordu Üniversitesi, 2018)
    In this talk, we study Ulisse Dini-type helicoidal surface in Euclidean 3-space E³. We give some basic notions of the three dimensional Euclidean geometry in section 2. In section 3, we consider Ulisse Dini helicoidal ...
  • Enneper-type surfaces in three dimensional Minkowski space 

    Güler, Erhan; Saraçoğlu Çelik, Semra; Kişi, Ömer (International Conference on Recent Advances in Pure and Applied Mathematics, 2016)
    In this work, we study on anEnneper-typeminimal surfacesusing Weierstrass representation in the threedimensional Minkowskispace. We compute implicit equations, degree and class of the surfaces.
  • A numerical investigation of VMS-POD model for darcy-brinkman equations 

    G. Eroglu, Fatma; Kaya, Songul; Rebholz, Leo (Proceedings of the World Congress on Engineering, 2018)
    We extend the variational multiscale proper orthogonal decomposition reduced order modeling (VMSPOD) to flows governed by double diffusive convection. We present stability and convergence analysis for it, and give results ...
  • Euler spirals 

    Saraçoğlu Çelik, Semra; Güler, Erhan; Kişi, Ömer (Kırşehir Ahi Ervan Üniversitesi, 2016)
  • Helicoidal surfaces of value m 

    Güler, Erhan (Kyushu University, Instute of Mathematics for Industry, 2014)
    Abstract: We define a new kind helicoidal surface of value m. A rotational surface which is isometric to the helicoidal surface of value m is revealed. In addition, we calculate some differential geometric properties of ...
  • On bour's minimal surface 

    Güler, Erhan (Katholieke Leuven University, 2012)
  • σ-asymptotically lacunary statistical equivalent functions on amenable semigroups 

    Kişi, Ömer; Güler, Erhan (2ndInternational Conference on Analysis and Its Applications, 2017-05-03)
  • Lacunary statistical convergence of complex uncertain sequence 

    Kişi, Ömer; Ünal, Hatice Kübra (8th International Conference on Applied Analysis and Mathematical Modelling (ICAAMM19), 2019-03-10)
  • Fibonacci statistical convergence of double sequences and Korovkin type approximation theorems 

    Kişi, Ömer; Ünal, Hatice Kübra (8th International Conference on Applied Analysis and Mathematical Modelling (ICAAMM19), 2019-03-10)
  • New definitions about ai statistical convergence with respect to a sequence of modulus functions and lacunary sequences 

    Kişi, Ömer; Hafize, Gümüş; Savaş, Ekrem (International Conference on Recent Advances in Pure and Applied Mathematics (ICRAPAM), 2016-05-19)
    In this study, we introduce the notion of A^{I}-lacunary statistical convergence, strongly A^{I}-lacunary convergence with respect to a sequence of modulus functions. We study some collections between them. Also, we ...
  • Lacunary I₂-invariant convergence of double sequences in random 2-normed spaces 

    Kişi, Ömer; Güler, Erhan (Proceedings of The International Conference on Mathematical Studies and Applications, 2018-10-04)
    In this study, we introduce the concept of lacunary I2-invariant convergence, lacunary I*2 -invariant convergence and lacunary I2-invariant Cauchy for double sequences in the topology introduced by random 2-normed spaces. ...
  • A generalized statistical convergence via ideals defined by folner sequences on amenable groups 

    Kişi, Ömer; Güler, Erhan (4th International Conference on Analysis and Its Applications (ICAA-2018), 2018-09-14)

View more