0000000000448663

AUTHOR

Francesca Tripaldi

0000-0001-5365-150x

showing 3 related works from this author

Extending an example by Colding and Minicozzi

2018

Extending an example by Colding and Minicozzi, we construct a sequence of properly embedded minimal disks $\Sigma_i$ in an infinite Euclidean cylinder around the $x_3$-axis with curvature blow-up at a single point. The sequence converges to a non smooth and non proper minimal lamination in the cylinder. Moreover, we show that the disks $\Sigma_i$ are not properly embedded in a sequence of open subsets of $\mathbb{ R}^3$ that exhausts $\mathbb{ R}^3$.

Mathematics - Differential GeometryvariaatiolaskentaLamination (topology)Curvatureminimal surfaces01 natural sciencesCombinatoricsdifferentiaaligeometria510 Mathematics0103 physical sciencesEuclidean geometryFOS: MathematicsCylinderPhysics::Atomic Physics0101 mathematicsMathematicsSequence010102 general mathematicsSigmaminimal laminationsColding-Minicozzi theoryDifferential geometryDifferential Geometry (math.DG)53A10 (Primary)010307 mathematical physicsGeometry and TopologyMathematics::Differential GeometrySingle point
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On the topology of surfaces with the generalised simple lift property.

2020

In this paper, we study the geometry of surfaces with the generalised simple lift property. This work generalises previous results by Bernstein and Tinaglia, and it is motivated by the fact that leaves of a minimal lamination obtained as a limit of a sequence of properly embedded minimal disks satisfy the generalised simple lift property.

Pure mathematicsHyperbolic geometryminimal laminationAlgebraic geometryminimal surfaces01 natural sciencesLift (mathematics)differentiaaligeometriaMathematics - Geometric Topology510 Mathematics0103 physical sciencesFOS: MathematicsLimit of a sequence53A10 51H050101 mathematicstopologiaSimple lift propertyMathematicsProjective geometryColding and minicozzi theoryOriginal PaperMinimal surface010102 general mathematicscolding and minicozzi theory53A10Geometric Topology (math.GT)Minimal surfacesMinimal lamination16. Peace & justiceDifferential geometry51H05010307 mathematical physicsGeometry and Topologygeometriasimple lift propertyGeometriae dedicata
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A Cornucopia of Carnot groups in Low Dimensions

2022

Abstract Stratified groups are those simply connected Lie groups whose Lie algebras admit a derivation for which the eigenspace with eigenvalue 1 is Lie generating. When a stratified group is equipped with a left-invariant path distance that is homogeneous with respect to the automorphisms induced by the derivation, this metric space is known as Carnot group. Carnot groups appear in several mathematical contexts. To understand their algebraic structure, it is useful to study some examples explicitly. In this work, we provide a list of low-dimensional stratified groups, express their Lie product, and present a basis of left-invariant vector fields, together with their respective left-invaria…

Mathematics - Differential GeometryApplied Mathematicsnilpotent Lie algebrasLien ryhmätfree nilpotent groupsharmoninen analyysistratified groupsdifferentiaaligeometria510 MathematicsDifferential Geometry (math.DG)Carnot groupsFOS: Mathematicsexponential coordinatesGeometry and Topologyassociated Carnot-graded Lie algebra53C17 43A80 22E25 22F30 14M17Analysis
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