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Given a complete non-compact surface embedded in R^3, we consider the Dirichlet Laplacian in a layer of constant width about the surface. Using an intrinsic approach to the layer geometry, we generalise the spectral results of an original…

Mathematical Physics · Physics 2015-06-26 G. Carron , P. Exner , D. Krejcirik

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

We show that a very general Jacobian elliptic surface is determined by its polarized rational Hodge structure, subject to various constraints on the irregularity and the geometric genus.

Algebraic Geometry · Mathematics 2024-05-03 N. I. Shepherd-Barron

In this note, we construct a minimal surface of general type with geometric genus p g = 4, self-intersection of the canonical divisor K^2 = 32 and irregularity q = 1 such that its canonical map is an abelian cover of degree 16 of P^1 x P^1.

Algebraic Geometry · Mathematics 2019-07-31 Nguyen Bin

Algebraically simply connected surfaces of general type with p_g=q=0 and 1\le K^2\le 4 in positive characteristic (with one exception in K^2=4) are presented by using a Q-Gorenstein smoothing of two-dimensional toric singularities, a…

Algebraic Geometry · Mathematics 2014-02-26 Yongnam Lee , Noboru Nakayama

We construct a new minimal complex surface of general type with $p_g=0$, $K^2=2$ and $H_1=\mathbb{Z}/4\mathbb{Z}$ (in fact $\pi_1^{\text{alg}}=\mathbb{Z}/4\mathbb{Z}$), which settles the existence question for numerical Campedelli surfaces…

Algebraic Geometry · Mathematics 2011-08-26 Heesang Park , Jongil Park , Dongsoo Shin

We show that the Clifford torus and the totally geodesic real projective plane RP^2 in the complex projective plane CP^2 are the unique Hamiltonian stable minimal Lagrangian compact surfaces of CP^2 with genus less than or equal to 4, when…

Differential Geometry · Mathematics 2007-05-23 Francisco Urbano

We construct a complex algebraic surface with geometric genus $p_g=3$, irregularity $q=0$, self-intersection of the canonical divisor $K^2=24$ and canonical map of degree $24$ onto $\mathbb P^2$.

Algebraic Geometry · Mathematics 2017-04-06 Carlos Rito

In this paper we construct a new family of simply connected minimal complex surfaces of general type with $p_g=1$, $q=0$, and $K^2=3, 4, 5, 6, 8$ using a $\mathbb{Q}$-Gorenstein smoothing theory. We also reconstruct minimal complex surfaces…

Algebraic Geometry · Mathematics 2011-01-18 Heesang Park , Jongil Park , Dongsoo Shin

We introduce the notion of a minimal Lagrangian connection on the tangent bundle of a manifold and classify all such connections in the case where the manifold is a compact oriented surface of non-vanishing Euler characteristic. Combining…

Differential Geometry · Mathematics 2020-03-04 Thomas Mettler

In this article we apply the classical method of focal loci of families to give a lower bound for the genus of curves lying on general surfaces. First we translate and reprove Xu's result that any curve C on a general surface in P^3 of…

Algebraic Geometry · Mathematics 2007-05-23 L. Chiantini , A. F. Lopez

We classify minimal complex surfaces of general type with $p_g=q=3$. More precisely, we show that such a surface is either the symmetric product of a curve of genus 3 or a free $\Z_2-$quotient of the product of a curve of genus 2 and a…

Algebraic Geometry · Mathematics 2007-05-23 Christopher D. Hacon , Rita Pardini

Let M be a 3-manifold (possibly with boundary). We show that, for any positive integer g, there exists an open nonempty set of metrics on M for each of which there are stable compact embedded minimal surfaces of genus g with arbitrarily…

Differential Geometry · Mathematics 2007-05-23 Brian Dean

We give many examples of surfaces of general type with $p_g=0$ for which Bloch's conjecture holds, for all values of $K^2$ except 9. Our surfaces are equipped with an involution.

Algebraic Geometry · Mathematics 2013-04-30 Claudio Pedrini , Charles Weibel

In this paper, we employ the loop group method to study the construction of minimal Lagrangian surfaces in the complex projective plane for which the surface is contractible. We present several new classes of minimal Lagrangian surfaces in…

Differential Geometry · Mathematics 2021-02-03 Josef F. Dorfmeister , Hui Ma

In these notes we give an interdisciplinary result which links the geometric concept of minimal surfaces with generalized harmonic functions.

Classical Analysis and ODEs · Mathematics 2020-01-08 Antonio Córdoba , Jesús Ocáriz

Let $\Sigma$ denote a closed surface with constant mean curvature in $\mathbb{G}^3$, a 3-dimensional Lie group equipped with a bi-invariant metric. For such surfaces, there is a harmonic Gauss map which maps values to the unit sphere within…

Differential Geometry · Mathematics 2026-01-22 Alcides de Carvalho , Marcos P. Cavalcante , Wagner Costa-Filho , Darlan de Oliveira

We study special linear systems of surfaces of $\mathbb{P}^3$ interpolating nine points in general position having a quadric as fixed component. By performing degenerations in the blown-up space, we interpret the quadric obstruction in…

Algebraic Geometry · Mathematics 2015-10-01 Maria Chiara Brambilla , Olivia Dumitrescu , Elisa Postinghel

We give a new proof of the string topology structure of a compact oriented surface of genus g greater than or equal to 2, using elementary algebraic topology. This reproves the result of Vaintrob.

Algebraic Topology · Mathematics 2012-03-20 A. P. M. Kupers

In this paper we classify compact minimal surfaces in $S^5$ with non-negative Gaussian curvature using the notion of a contact angle.

Differential Geometry · Mathematics 2007-05-23 Rodrigo Ristow Montes