activity
20052011
most citedRicci-Flat Holonomy: a Classification

8 citations · 39 across the 15 of their papers we have counts for

collaborators

15 papers

math-ph2011★ 4 cited

Courant Algebroids in Parabolic Geometry

Stuart Armstrong, Rongmin Lu

Let be a Lie subalgebra of a semisimple Lie algebra and be the corresponding pair of connected Lie groups. A Cartan geometry of type associates to a smooth…

math.GT2009

A note on discrete Holonomy through directed edges, with no lengths

Stuart Armstrong, Jussi Westergren

This note demonstrates how both the concept of distance and the concept of holonomy can be constructed from a suitable network with directed edges (and no lengths). The number of d…

math.DG2009

Non-regular -graded geometries II: classifying geometries, and generic six-in-nine distributions

Stuart Armstrong

Complementing the previous paper in the series, this paper classifies -graded parabolic geometries, listing their important properties: the group , the graded tangent bun…

math.DG2009

Non-regular -graded geometries I: general theory

Stuart Armstrong

This paper analyses non-regular -graded geometries, and show that they share many of the properties of regular geometries -- the existence of a unique normal Cartan connection…

math.DG2008

Reducing almost Lagrangian structures and almost CR geometries to partially integrable structures

Stuart Armstrong

This paper demostrates a method for analysing almost CR geometries , by uniquley defining a partially integrable structure from the same data. Thus two almost CR geo…

math.DG2008

Addendum to "Ricci-flat holonomy: a Classification": the case of Spin(10)

Stuart Armstrong

This note fills a hole in the author's previous paper ``Ricci-Flat Holonomy: a Classification'', by dealing with irreducible holonomy algebras that are subalgebras or real forms of…