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In this paper we introduce the class of ordered homomorphism ideals and prove that these ideals admit minimal cellular resolutions constructed as homomorphism complexes. As a key ingredient of our work, we introduce the class of cointerval…

Combinatorics · Mathematics 2011-03-08 Benjamin Braun , Jonathan Browder , Steven Klee

This paper gives an analysis of the movement of n+1 almost parallel filaments or vortices. Starting from a polygonal equilibrium of n vortices with equal circulation and one vortex at the center of the polygon, we find bifurcation of…

Dynamical Systems · Mathematics 2013-03-27 C. García-Azpeitia , J. Ize

It was shown by G. Pisier that any finite-dimensional normed space admits an $\alpha$-regular $M$-position, guaranteeing not only regular entropy estimates but moreover regular estimates on the diameters of minimal sections of its unit-ball…

Functional Analysis · Mathematics 2021-05-28 Emanuel Milman , Yuval Yifrach

We give a uniform and elementary treatment of many classical and new triply periodic minimal surfaces in Euclidean space, based on a Schwarz-Christoffel formula for periodic polygons in the plane. Our surfaces share the property that…

Differential Geometry · Mathematics 2008-05-21 Shoichi Fujimori , Matthias Weber

We prove that either there exists at least one hamilton periodic orbit in a given energy close smooth hypersurface or there exist at least two hamilton periodic orbits in a near-by energy close smooth hypersurface. More general results also…

Symplectic Geometry · Mathematics 2007-05-23 Renyi Ma

Let $ \Omega \subsetneq \mathbf{R}^n\,(n\geq 2)$ be an unbounded convex domain. We study the minimal surface equation in $\Omega$ with boundary value given by the sum of a linear function and a bounded uniformly continuous function in $…

Analysis of PDEs · Mathematics 2022-01-19 Guosheng Jiang , Zhehui Wang , Jintian Zhu

We prove rationality results for moduli spaces of elliptic K3 surfaces and elliptic rational surfaces with fixed monodromy groups.

Algebraic Geometry · Mathematics 2007-05-23 Fedor Bogomolov , Tihomir Petrov , Yuri Tschinkel

We present in this work the first experimental observation of oscillations in Parity-Time symmetric ZRC dimers. The system obtained is of first order ordinary differential equation due to the use of imaginary resistors. The coupled cells…

We prove existence and regularity of minimisers for the Canham-Helfrich energy in the class of weak (possibly branched and bubbled) immersions of the $2$-sphere. This solves (the spherical case) of the minimisation problem proposed by…

Differential Geometry · Mathematics 2020-04-22 Andrea Mondino , Christian Scharrer

We prove the existence of minimal surfaces in a bounded convex subset of $\mathbb R^3$, $\mathcal M$, intersecting the boundary of $\mathcal M$ with a fixed contact angle. The proof is based on a min-max construction in the spirit of…

Differential Geometry · Mathematics 2021-11-22 Luigi De Masi , Guido De Philippis

Based on Markvorsen and Palmer's work on mean time exit and isoperimetric inequalities we establish slightly better isoperimetric inequalities and mean time exit estimates for minimal submanifolds of $N\times\mathbb{R}$. We also prove…

Differential Geometry · Mathematics 2010-01-04 G. Pacelli Bessa , J. Fabio Montenegro

We classify minimal extrinsically homogeneous submanifolds of complex hyperbolic spaces.

Differential Geometry · Mathematics 2026-05-12 Ángel Cidre-Díaz , Miguel Domínguez-Vázquez

We prove a new logarithmic epiperimetric inequality for multiplicity-one stationary cones with isolated singularity by flowing in the radial direction any given trace along appropriately chosen directions. In contrast to previous…

Analysis of PDEs · Mathematics 2019-03-13 Max Engelstein , Luca Spolaor , Bozhidar Velichkov

We present a numerical study of quasiperiodic foams, in which the bubbles are generated as duals of quasiperiodic Frank-Kasper phases. These foams are investigated as potential candidates to the celebrated Kelvin problem for the partition…

Soft Condensed Matter · Physics 2017-03-08 Simon J. Cox , François Graner , Rémy Mosseri , Jean-François Sadoc

We prove that there are only finitely many isoparametrically foliated closed connected Riemannian manifolds with bounded geometry, fixed dimension $n\neq5$, and finite fundamental group, up to foliated diffeomorphism. In addition, we…

Differential Geometry · Mathematics 2026-03-24 Manuel Krannich , Alexander Lytchak , Marco Radeschi

In this paper, we study closed embedded minimal hypersurfaces in a Riemannian $(n+1)$-manifold ($2\le n\le 6$) that minimize area among such hypersurfaces. We show they exist and arise either by minimization techniques or by min-max…

Differential Geometry · Mathematics 2015-03-20 Laurent Mazet , Harold Rosenberg

In this paper we prove the existence of rational homology balls smoothly embedded in regular neighborhoods of certain linear chains of smooth $2$-spheres by using techniques from minimal model program for 3-dimensional complex algebraic…

Geometric Topology · Mathematics 2015-08-18 Heesang Park , Jongil Park , Dongsoo Shin

We prove that in a Riemannian manifold $M$, each function whose Hessian is proportional the metric tensor yields a weighted monotonicity theorem. Such function appears in the Euclidean space, the round sphere $S^n$ and the hyperbolic space…

Differential Geometry · Mathematics 2023-03-17 Manh Tien Nguyen

Klein foams are analogues of Riemann surfaces for surfaces with one-dimensional singularities. They first appeared in mathematical physics (string theory etc.). By definition a Klein foam is constructed from Klein surfaces by gluing…

Complex Variables · Mathematics 2015-11-26 Sabir M. Gusein-Zade , Sergey M. Natanzon

In this paper, we show the existence of a timelike minimal surface with an arbitrary number of weak complete ends. Then, we discuss the asymptotic behaviour of the simple ends and the topology of the singularity set of the constructed…

Differential Geometry · Mathematics 2025-06-25 Priyank Vasu , Rahul Kumar Singh , Subham Paul