Lokale Kennzeichnungen der Minimalhyperregelflächen.
Lokale Untersuchungen an Normalkongruenzen im Dreidimensionalen elliptischen Raum.
Loki: software for computing cut loci.
Long geodesics on convex surfaces.
Loop group decompositions in the generalized method.
Loops and quasigroups: Aspects of current work and prospects for the future
This paper gives a brief survey of certain recently developing aspects of the study of loops and quasigroups, focussing on some of the areas that appear to exhibit the best prospects for subsequent research and for applications both inside and outside mathematics.
Lorentz manifolds and general relativity theory.
Lorentzian geometry as determined by the volumes of small truncated light cones
Lorentzian geometry in the large
Lorentzian geometry in the large has certain similarities and certain fundamental differences from Riemannian geometry in the large. The Morse index theory for timelike geodesics is quite similar to the corresponding theory for Riemannian manifolds. However, results on completeness for Lorentzian manifolds are quite different from the corresponding results for positive definite manifolds. A generalization of global hyperbolicity known as pseudoconvexity is described. It has important implications...
Lorentzian isothermic surfaces and Bonnet pairs
Lorentzian surfaces in Lorentz three-space are studied using an indefinite version of the quaternions. A classification theorem for Bonnet pairs in Lorentz three-space is obtained.
Lorentzian manifolds with special holonomy and parallel spinors
The author studies the holonomy group of a simply connected indecomposable and reducible Lorentzian spin manifold under the condition that they admit parallel spinors. He shows that there are only two possible situations: either the manifold is a so-called Brinkmann wave or it has Abelian holonomy and is a pp-manifold – a generalization of a plane-wave. The author gives also sufficient conditions for a Brinkmann wave to have as holonomy the semidirect product of holonomy group of a Riemannian manifold...
Lorentzian similarity manifolds
An (m+2)-dimensional Lorentzian similarity manifold M is an affine flat manifold locally modeled on (G,ℝm+2), where G = ℝm+2 ⋊ (O(m+1, 1)×ℝ+). M is also a conformally flat Lorentzian manifold because G is isomorphic to the stabilizer of the Lorentzian group PO(m+2, 2) of the Lorentz model S m+1,1. We discuss the properties of compact Lorentzian similarity manifolds using developing maps and holonomy representations.
Lorentz-invariant quantum fields in the space-time tangent bundle.
L'oscillateur relativiste et les fonctions de Mathieu
Losik cohomology of the Lie algebra of infinitesimal automorphisms of a -structure. II
Losik cohomology of the Lie algebra of infinitesimal automorphisms of a -structure
Lösung einer Funktionalgleichung für Translationsflächen die ein zylindrisch-konisches Netz besitzen
Lower Bounds for Eigenfunctions on Riemannian Manifolds.
Lower Bounds for the Eigenvalues of Negatively Curved Manifolds.
Lower bounds for the eigenvalues of the basic Dirac operator