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We construct an infinite family of homologous, non-isotopic, symplectic surfaces of any genus greater than one in a certain class of closed, simply connected, symplectic four-manifolds. Our construction is the first example of this…

Geometric Topology · Mathematics 2018-12-24 B. Doug Park , Mainak Poddar , Stefano Vidussi

We prove an existence and uniqueness theorem about spherical helicoidal (in particular, rotational) surfaces with prescribed mean or Gaussian curvature in terms of a continuous function depending on the distance to its axis. As an…

Differential Geometry · Mathematics 2024-03-04 Ildefonso Castro , Ildefonso Castro-Infantes , Jesús Castro-Infantes

For an embedded singly periodic minimal surface M with genus bigger than or equal to 4 and annular ends, some weak symmetry hypotheses imply its congruence with one of the Hoffman-Wohlgemuth examples. We give a very geometrical proof of…

Differential Geometry · Mathematics 2008-06-12 Valerio Ramos-Batista , Plinio Simoes

We prove that a H-surface M in H^2xR, |H| <= 1/2, inherits the symmetries of its boundary when the boundary is either a horizontal curve with curvature greater than one or two parallel horizontal curves with curvature greater than one,…

Differential Geometry · Mathematics 2007-05-23 B. Nelli , R. Sa Earp , W. Santos , E. Toubiana

We prove that in the complement of a highly twisted link, all closed, essential, meridionally incompressible surfaces must have high genus. The genus bound is proportional to the number of crossings per twist region. A similar result holds…

Geometric Topology · Mathematics 2015-06-24 Ryan Blair , David Futer , Maggy Tomova

Minimal surfaces with uniform curvature (or area) bounds have been well understood and the regularity theory is complete, yet essentially nothing was known without such bounds. We discuss here the theory of embedded (i.e., without…

Differential Geometry · Mathematics 2007-05-23 Tobias H. Colding , William P. Minicozzi

We consider any Finsler metric on a closed, orientable surface of genus greater than one. H. M. Morse proved that we can associate an asymptotic direction to minimal rays in the universal cover (in the Poincar\'e disc: a point on the unit…

Dynamical Systems · Mathematics 2014-09-08 Jan Philipp Schröder

We show that there exists a metric with positive scalar curvature on S2xS1 and a sequence of embedded minimal cylinders that converges to a minimal lamination that, in a neighborhood of a strictly stable 2-sphere, is smooth except at two…

Differential Geometry · Mathematics 2008-03-06 Maria Calle , Darren Lee

We construct three kinds of complete embedded minimal surfaces in $\Bbb H^2\times \Bbb R$. The first is a simply connected, singly periodic, infinite total curvature surface. The second is an annular finite total curvature surface. These…

Differential Geometry · Mathematics 2011-01-27 Juncheol Pyo

In \cite{CM5}, Colding and Minicozzi describe a type of compactness property possessed by sequences of embedded minimal surfaces in $\Real^3$ with finite genus and with boundaries going to $\infty$. They show that any such sequence either…

Differential Geometry · Mathematics 2009-07-06 Jacob Bernstein , Christine Breiner

Observing a linear superposition principle, a family of new minimal hypersurfaces in Euclidean space is found, as well as that linear combinations of generalized helicoids induce new algebraic minimal cones of arbitrarily high degree.

Differential Geometry · Mathematics 2016-06-30 Jens Hoppe

We prove the existence of nonperiodic, properly embedded minimal surfaces in $\mathbb{R}^2\times\mathbb{S}^1$ with genus zero, infinitely many ends and one limit end (in particular, they have infinite total curvature).

Differential Geometry · Mathematics 2007-05-23 Laurent Mazet , M. Magdalena Rodriguez , Martin Traizet

We add two new 1-parameter families to the short list of known embedded triply periodic minimal surfaces of genus 4 in $\mathbb{R}^3$. Both surfaces can be tiled by minimal pentagons with two straight segments and three planar symmetry…

Differential Geometry · Mathematics 2018-12-31 Daniel Freese , Matthias Weber , A. Thomas Yerger , Ramazan Yol

We prove some non-existence results for the asymptotic Plateau problem of minimal and area minimizing surfaces in the homogeneous space ${\widetilde{\mathrm{SL}}_2(\mathbb{R})}$ with isometry group of dimension 4, in terms of their…

Differential Geometry · Mathematics 2022-07-22 Jesús Castro-Infantes

The two-dimensional surface of a bi-axial ellipsoid is characterized by the lengths of its major and minor axes. Longitude and latitude span an angular coordinate system across. We consider the egg-shaped surface of constant altitude above…

Metric Geometry · Mathematics 2022-12-13 Richard J. Mathar

We consider surfaces embedded in a 3D contact sub-Riemannian manifold and the problem of the finiteness of the induced distance (i.e., the infimum of the length of horizontal curves that belong to the surface). Recently it has been proved…

Differential Geometry · Mathematics 2024-07-15 Eugenio Bellini , Ugo Boscain

A topologically minimal surface may be isotoped into a normal form with respect to a fixed triangulation. If the intersection with each tetrahedron is simply connected, then the pieces of this normal form are triangles, quadrilaterals, and…

Geometric Topology · Mathematics 2018-03-16 David Bachman , Ryan Derby-Talbot , Eric Sedgwick

We construct families of embedded, singly periodic minimal surfaces of any genus $g$ in the quotient with any even number $2n>2$ of almost parallel Scherk ends. A surface in such a family looks like $n$ parallel planes connected by $n-1+g$…

Differential Geometry · Mathematics 2023-10-17 Hao Chen , Peter Connor , Kevin Li

We prove the existence of a family of embedded doubly periodic minimal surfaces of (quotient) genus $g$ with orthogonal ends that generalizes the classical doubly periodic surface of Scherk and the genus-one Scherk surface of Karcher. The…

Differential Geometry · Mathematics 2010-08-02 Matthias Weber , Michael Wolf

We consider a surface $M$ immersed in $\mathbb{R}^3$ with induced metric $g=\psi\delta_2$ where $\delta_2$ is the two dimensional Euclidean metric. We then construct a system of partial differential equations that constrain $M$ to lift to a…

Differential Geometry · Mathematics 2007-05-23 Aaron Peterson , Stephen Taylor