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We construct examples of inhomogeneous isoparametric real hypersurfaces in complex hyperbolic spaces.

Differential Geometry · Mathematics 2010-11-24 J. Carlos Diaz-Ramos , Miguel Dominguez-Vazquez

The revised version has two additional references and a shorter proof of Proposition 5.7. This version also makes numerous small changes and has an appendix containing a proof of the degree formula for a parametrized surface.

Algebraic Geometry · Mathematics 2007-05-23 David A. Cox

The problem of construction of the surfaces with given sets of the points with horizontal tangential planes is considered. Such considerations are of interest in the problem of computer simulations of the waved ocean surfaces.

Numerical Analysis · Mathematics 2011-03-02 Ivan P Smirnov , Vera G Burdukovskaya

We present an explicit formula for Witten-Kontsevich tau-function.

Algebraic Geometry · Mathematics 2013-06-25 Jian Zhou

We prove the existence of non-smooth solutions to Special Lagrangian Equations in the non-convex case.

Analysis of PDEs · Mathematics 2015-05-13 Nikolai Nadirashvili , Serge Vladuts

Simple properties of the Gauss map characterise important classes of surfaces in $\Rq$: $R$-surfaces, the real version of plane complex curves; Lagrangean surfaces; isoclinic surfaces.

Differential Geometry · Mathematics 2013-04-09 Jose Basto-Gonçalves

As seen in the works of Calabi, Cheng-Yau and Loftin, affine sphere equations have a close relationship with Kaehler-Einstein metrics. The main purpose of this note is to show that an equation analogous to those of hyperbolic affine spheres…

Differential Geometry · Mathematics 2007-10-02 Toshiki Mabuchi

We study the systems of ordinary differential equations which are implicit with respect to the higher derivatives, appearing in the linear form, and their solutions near the singular points. The invertibility of the higher derivatives…

Mathematical Physics · Physics 2007-05-23 M. V. Pomazanov

A parameterized surface can be represented as a projection from a certain toric surface. This generalizes the classical homogeneous and bihomogeneous parameterizations. We extend to the toric case two methods for computing the implicit…

Algebraic Geometry · Mathematics 2007-05-23 Amit Khetan , Carlos D'Andrea

We obtain some equations for Hamiltonian-minimal Lagrangian surfaces in CP^2 and give their particular solutions in the case of tori.

Differential Geometry · Mathematics 2007-05-23 A. E. Mironov

We survey the various constructions of forward self-similar solutions (and generalizations of self-similar solutions) to the Navier-Stokes equations. We also include and prove an extension of a recent result from [7].

Analysis of PDEs · Mathematics 2018-02-02 Zachary Bradshaw , Tai-Peng Tsai

We prove that the Euler-Chow series for ruled surfaces and scrolls is rational by means of an explicit computation.

Algebraic Geometry · Mathematics 2021-01-07 E. Javier Elizondo , Eladio Escobar

We explicitly find an equation and a projective embedding of the Kummer surface associated to the Jacobian of a curve of genus 2 given by an equation of the form y^2 + h(x)y = f(x) over an arbitrary ground field as well as several maps that…

Algebraic Geometry · Mathematics 2014-01-28 Jan Steffen Müller

We study complex spatial quartic surfaces with simple singularities up to equisingular deformations; as a first step, give a complete equisingular deformation classification of the so-called non-special simple quartic surfaces.

Algebraic Geometry · Mathematics 2015-08-24 Çisem Güneş Aktaş

This survey paper concerns elliptic surfaces with section. We give a detailed overview of the theory including many examples. Emphasis is placed on rational elliptic surfaces and elliptic K3 surfaces. To this end, we particularly review the…

Algebraic Geometry · Mathematics 2010-07-12 Matthias Schuett , Tetsuji Shioda

By modifying Cole's example, we construct explicit Riemann surfaces with large bounds on corona solutions in an elementary way.

Complex Variables · Mathematics 2014-12-15 Byung-Geun Oh

We explain how to determine equations describing the ramification of an outer simple linear projection of a projective scheme in a way suited for explicit computations.

Algebraic Geometry · Mathematics 2011-09-06 Simon Kurmann

We first give a cleaner and more direct approach to the derivation of the Fast model of the Kummer surface. We show how to construct efficient (N,N)-isogenies, for any odd N, both on the general Kummer surface and on the Fast model.

Number Theory · Mathematics 2024-09-24 Maria Corte-Real Santos , E. Victor Flynn

We investigate geometric properties of surfaces given by certain formulae. In particular, we calculate the singular curvature and the limiting normal curvature of such surfaces along the set of singular points consisting of singular points…

Differential Geometry · Mathematics 2020-03-25 Yoshiki Matsushita , Takuya Nakashima , Keisuke Teramoto

We give a logically and mathematically self-consistent procedure of quantization of free scalar field, including quantization on space-like surfaces. A short discussion of possible generalization to interacting fields is added.

High Energy Physics - Theory · Physics 2009-10-18 A. V. Stoyanovsky