13 citations · 50 across the 6 of their papers we have counts for
6 papers
Algebraic Classification of the Ricci Curvature Tensor and Spinor for Neutral Signature in Four Dimensions
Peter R Law
I apply the algebraic classification of self-adjoint endomorphisms of provided by their Jordan canonical form to the Ricci curvature tensor of four-dimensional neut…
Real AlphaBeta-Geometries
Peter R. Law, Yasuo Matsushita
By a real alphabeta-geometry we mean a four-dimensional manifold M equipped with a neutral metric h such that (M,h) admits both an integrable distribution of alpha-planes and an in…
Algebraically Special, Real Alpha Geometries
Peter R. Law, Yasuo Matsushita
We exploit the spinor description of four-dimensional Walker geometry, and conformal rescalings of such, to describe the local geometry of four-dimensional neutral geometries with…
Spin coefficients for four-dimensional neutral metrics, and null geometry
Peter R. Law
Notation for spin coefficients for metrics of neutral signature in four dimensions is introduced. The utility and interpretation of spin coefficients is explored through themes in…
Modelling Sex Ratio and Numbers for Translocation in Meta-Population Management
Peter R. Law
The management of endangered species as metapopulations is becoming increasingly common. Diverse aspects of metapopulation dynamics and management have received attention in recent…
A spinor approach to Walker geometry
Peter R Law, Yasuo Matsushita
A four-dimensional Walker geometry is a four-dimensional manifold M with a neutral metric g and a parallel distribution of totally null two-planes. This distribution has a natural…