The multiple conical surfaces.
Schicho, Josef (2001)
Beiträge zur Algebra und Geometrie
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Schicho, Josef (2001)
Beiträge zur Algebra und Geometrie
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Düldül, M., Kuruoğlu, N. (2007)
Acta Mathematica Universitatis Comenianae. New Series
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Sultana, Nahid (2008)
Balkan Journal of Geometry and its Applications (BJGA)
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W. Patrick Hooper, Barak Weiss (2012)
Annales de l’institut Fourier
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We study infinite translation surfaces which are -covers of compact translation surfaces. We obtain conditions ensuring that such surfaces have Veech groups which are Fuchsian of the first kind and give a necessary and sufficient condition for recurrence of their straight-line flows. Extending results of Hubert and Schmithüsen, we provide examples of infinite non-arithmetic lattice surfaces, as well as surfaces with infinitely generated Veech groups.
Biancofiore, Aldo, Fania, Maria Lucia, Lanteri, Antonio (2006)
Beiträge zur Algebra und Geometrie
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Peterson, Aaron, Taylor, Stephen (2008)
Balkan Journal of Geometry and its Applications (BJGA)
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Abdel-Baky, R.A., Abd-Ellah, H.N. (2008)
Archivum Mathematicum
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Rashad A. Abdel-Baky, H. N. Abd-Ellah (2008)
Archivum Mathematicum
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In this paper, we study a spacelike (timelike) ruled W-surface in Minkowski 3-space which satisfies nontrivial relation between elements of the set , where and are the Gaussian and mean curvatures of the first and second fundamental forms, respectively. Finally, some examples are constructed and plotted.
Rashad A. Abdel-Baky, H. N. Abd-Ellah (2008)
Archivum Mathematicum
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In this paper, we study a spacelike (timelike) ruled W-surface in Minkowski 3-space which satisfies nontrivial relation between elements of the set , where and are the Gaussian and mean curvatures of the first and second fundamental forms, respectively. Finally, some examples are constructed and plotted.
Dong Quan Ngoc Nguyen (2012)
Journal de Théorie des Nombres de Bordeaux
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We construct del Pezzo surfaces of degree violating the Hasse principle explained by the Brauer-Manin obstruction. Using these del Pezzo surfaces, we show that there are algebraic families of surfaces violating the Hasse principle explained by the Brauer-Manin obstruction. Various examples are given.