Results 21 to 30 of about 894 (54)
Locally conformally Kähler solvmanifolds: a survey
Complex Manifolds, 2019 A Hermitian structure on a manifold is called locally conformally Kähler (LCK) if it locally admits a conformal change which is Kähler. In this survey we review recent results of invariant LCK structures on solvmanifolds and present original results ...
Andrada A., Origlia M.
doaj +1 more source
Long-term results of iliac aneurysm repair with iliac branched endograft. A 5-year experience on 100 consecutive cases [PDF]
, 2012 Background: Iliac branch device (IBD) technique has been introduced as an appealing and effective solution to avoid complications occurring during repair of aorto-iliac aneurysm with extensive iliac involvement.
BRAMBILLA, DARIA +6 more
core +1 more source
Examples of compact non-Kähler almost Kähler manifolds
, 1985 A parametrized family of compact non-Kihler almost Kihler manifolds M2r+2, r > 1, is constructed. For r odd, these manifolds are shown to have odd first Betti number, so they cannot be Kihlerian. Introduction. Few examples, compact or not, of non-Kaihler
L. A. Cordero, M. Fernández, M. León
semanticscholar +1 more source
, 1980 Psyche: A Journal of Entomology, Volume 87, Issue 3-4, Page 259-298, 1980.
Victor Johnson
wiley +1 more source
Rank one lattices whose parabolic isometries have no rotational part
, 1998 We prove a result on certain finite index subgroups of rank one lattices which is motivated by cusp closing constructions. Let X always denote a rank one symmetric space of non-compact type, i.e., X is the hyperbolic space KH, n ≥ 2, where K is either R ...
Christoph Hummel
semanticscholar +1 more source
, 1981 Let L be a left invariant differential operator on the nilpotent Lie group N. It is shown that if 7r(L) is invertible for all irreducible representations ir in general position (and if the inverses satisfy some mild technical conditions), then L is ...
L. Corwin
semanticscholar +1 more source
Flat bundles with solvable holonomy
, 1981 Let G be a solvable linear Lie group. We show that for every flat pnncipal G-bundle { over a CW-complex M, there is a finite-sheeted covering spacep: M-3 M such that p*C is trivial as a principal G-bundle.
W. Goldman, M. Hirsch
semanticscholar +1 more source
Examples of naturally reductive pseudo-Riemannian Lie groups
, 2011 We provide examples of naturally reductive pseudo-Riemannian spaces, in particular an example of a naturally reductive pseudo-Riemannian 2-step nilpotent Lie group $(N, _N)$, such that $_N$ is invariant under a left action and for which the center is ...
Ovando, Gabriela P.
core +1 more source
Realization of square-integrable representations of unimodular Lie groups on ²-cohomology spaces
, 1980 An analogue of the "Langlands conjecture" is proved for a large class of connected unimodular Lie groups having square-integrable representations (modulo their centers).
Jonathan Rosenberg
semanticscholar +1 more source
A metric characterization of Carnot groups
, 2014 We give a short axiomatic introduction to Carnot groups and their subRiemannian and subFinsler geometry. We explain how such spaces can be metrically described as exactly those proper geodesic spaces that admit dilations and are isometrically ...
Donne, Enrico Le
core +1 more source