J
James W. York
Researcher at Cornell University
Publications - 11
Citations - 320
James W. York is an academic researcher from Cornell University. The author has contributed to research in topics: General relativity & Mathematics of general relativity. The author has an hindex of 6, co-authored 11 publications receiving 294 citations. Previous affiliations of James W. York include Pierre-and-Marie-Curie University.
Papers
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Journal ArticleDOI
Extrinsic curvature and the Einstein constraints
Harald P. Pfeiffer,James W. York +1 more
TL;DR: In this article, a decomposition of symmetric tensors is used to obtain a weight function such that the transverse traceless part of the extrinsic curvature vanishes.
Journal ArticleDOI
Uniqueness and nonuniqueness in the Einstein constraints.
Harald P. Pfeiffer,James W. York +1 more
TL;DR: This work examines numerically solutions of the CTS equations describing perturbed Minkowski space, and finds only one solution, but finds two distinct solutions, one even containing a black hole, when the lapse is determined by a fifth elliptic equation through specification of the mean curvature.
Journal ArticleDOI
Self-renormalization of the classical quasilocal energy
TL;DR: The notion of quasilocal energy (QLE) was introduced by Brown and York as discussed by the authors, who showed that the energy is typically concentrated just inside the horizon, not at the central singularity.
Book ChapterDOI
Constraints and evolution in cosmology
TL;DR: In this paper, the authors review some old and new results about strict and non-strict hyperbolic formulations of the Einstein equations, and present some interesting results about the nonstrict formulations.
Posted Content
Constraints and evolution in cosmology
TL;DR: In this paper, the authors review some old and new results about strict and non strict hyperbolic formulations of the Einstein equations, and present some interesting results about non-strict formulations.