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We show that in codimension at least 3, spaces of locally flat topological embeddings of manifolds are correctly modelled by derived spaces of maps between their configuration categories (under mild smoothability conditions). That general…

Algebraic Topology · Mathematics 2024-10-01 Pedro Boavida de Brito , Michael S. Weiss

We give explicit origami embeddings of a 2-dimensional flat torus of any modulus in the 3-dimensional Euclidean space.

Geometric Topology · Mathematics 2020-07-15 Takashi Tsuboi

We formulate a class of minimal tori in S^3 in terms of classical mechanics, reveal a curious property of the Clifford torus, and note that the question of periodicity can be made more explicit in a simple way.

Differential Geometry · Mathematics 2013-07-10 Joakim Arnlind , Jaigyoung Choe , Jens Hoppe

The degree of a map between orientable manifolds is a fundamental concept in topology, offering deep insights into the structure of the manifolds and the nature of the corresponding maps. This concept has been extensively studied,…

Combinatorics · Mathematics 2026-01-07 Biplab Basak , Ayushi Trivedi

For sequences of warped product metrics on a $3$-torus satisfying the scalar curvature bound $R_j \geq -\frac{1}{j}$, uniform upper volume and diameter bounds, and a uniform lower area bound on the smallest minimal surface, we find a…

Differential Geometry · Mathematics 2023-06-27 Brian Allen , Lisandra Hernandez-Vazquez , Davide Parise , Alec Payne , Shengwen Wang

The following version of a conjecture of Fischer-Colbrie and Schoen is proved: If M is a complete Riemannian 3-manifold with nonnegative scalar curvature which contains a two-sided torus S which is of least area in its isotopy class then M…

Differential Geometry · Mathematics 2007-05-23 Mingliang Cai , Greg Galloway

Asymptotically flat, time-symmetric, axially symmetric and conformally flat initial data for vacuum general relativity are studied numerically on $R^3$ with the interior of a standard torus cut out. By the choice of boundary condition the…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Sascha Husa

In 3-dimensional Euclidean space, Scherk second surfaces are singly periodic embedded minimal surfaces with four planar ends. In this paper, we obtain a natural generalization of these minimal surfaces in any higher dimensional Euclidean…

Differential Geometry · Mathematics 2007-05-23 Frank Pacard

Here, we focus on focal surfaces of a tubular surface in Euclidean 3-space E^3: Firstly, we give the tubular surfaces with respect to Frenet and Darboux frames. Then, we define focal surfaces of these tubular surfaces. We get some results…

Differential Geometry · Mathematics 2019-10-14 Sezgin Büyükkütük , İlim Kişi , Günay Öztürk

Previous work of the authors studies minimal triangulations of closed 3-manifolds using a characterisation of low degree edges, embedded layered solid torus subcomplexes and 1-dimensional $\mathbb{Z}_2$-cohomology. The underlying blueprint…

Geometric Topology · Mathematics 2019-10-24 William Jaco , Hyam Rubinstein , Jonathan Spreer , Stephan Tillmann

Minimal surfaces in the Riemannian product of surfaces of constant curvature have been considered recently, particularly as these products arise as spaces of oriented geodesics of 3-dimensional space-forms. This papers considers more…

Differential Geometry · Mathematics 2024-12-10 Nikos Georgiou , Brendan Guilfoyle

We study toric varieties over an arbitrary field with an emphasis on toric surfaces in the Merkurjev-Panin motivic category of "K-motives". We explore the decomposition of certain toric varieties as K-motives into products of central simple…

Algebraic Geometry · Mathematics 2018-09-14 Fei Xie

In this paper, we are interested in flat metric structures with conical singularities on surfaces which are obtained by deforming translation surface structures. The moduli space of such flat metric structures can be viewed as some…

Differential Geometry · Mathematics 2010-02-18 Duc-Manh Nguyen

We prove that the deformation space of geodesic triangulations of a flat torus is homotopy equivalent to a torus. This solves an open problem proposed by Connelly et al. in 1983, in the case of flat tori. A key tool of the proof is a…

Geometric Topology · Mathematics 2021-07-13 Yanwen Luo , Tianqi Wu , Xiaoping Zhu

We find the first examples of triply periodic minimal surfaces of which the intrinsic symmetries are all of horizontal type.

Differential Geometry · Mathematics 2009-07-07 M. F. da Silva , G. A. Lobos , V. Ramos Batista

We deal with minimal surfaces in the unit sphere $S^3$, which are one-parameter families of circles. Minimal surfaces in $\R^3$ foliated by circles were first investigated by Riemann, and a hundred years later Lawson constructed examples of…

Differential Geometry · Mathematics 2010-12-01 N. Kutev , V. Milousheva

Minimal tori that are linearly full in the 3-sphere possess a natural invariant g called their spectral genus, which was introduced by Hitchin. We show that for each g>0, there are countably many real g-dimensional families of minimally…

Differential Geometry · Mathematics 2007-05-23 Emma Carberry

We classify completely the surfaces of general type whose canonical map is 3-to-1 onto a surface of minimal degree in projective space. These surfaces fall into 5 distinct classes and we give explicit examples belonging to each of these…

Algebraic Geometry · Mathematics 2007-05-23 M. Mendes Lopes , R. Pardini

We prove that if an $n$-dimensional space $X$ satisfies certain topological conditions then any triangulation of $X$ as well as any its representation as a simplicial set with contractible faces has at least $2^n$ faces of dimension $n$.…

Algebraic Topology · Mathematics 2024-08-07 Sergey Avvakumov , Roman Karasev

A triangulation of a surface with fixed topological type is called irreducible if no edge can be contracted to a vertex while remaining in the category of simplicial complexes and preserving the topology of the surface. A complete list of…

Combinatorics · Mathematics 2021-03-09 S. Lawrencenko , T. Sulanke , M. T. Villar , L. V. Zgonnik , M. J. Chávez , J. R. Portillo