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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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24 papers · 1 filter
Massive Elementary Particles and Black Holes
B. F. L. Ward
An outstanding problem posed by Einstein's general theory of relativity to the quantum theory of point particle fields is the fate of a massive point particle; for, in the classica…
Deflation of Eigenvalues for Iterative Methods in Lattice QCD
Dean Darnell, Ronald B. Morgan, Walter Wilcox
Work on generalizing the deflated, restarted GMRES algorithm, useful in lattice studies using stochastic noise methods, is reported. We first show how the multi-mass extension of d…
No-Go Theorem in Spacetimes with Two Commuting Spacelike Killing Vectors
Anzhong Wang
Four-dimensional Riemannian spacetimes with two commuting spacelike Killing vectors are studied in Einstein's theory of gravity, and found that no outer apparent horizons exist, pr…
Comment on "Absence of trapped surfaces and singularities in cylindrical collapse"
Anzhong Wang
Recently, the gravitational collapse of an infinite cylindrical thin shell of matter in an otherwise empty spacetime with two hypersurface orthogonal Killing vectors was studied by…
Critical Collapse of Cylindrically Symmetric Scalar Field in Four-Dimensional Einstein's Theory of Gravity
Anzhong Wang
Four-dimensional cylindrically symmetric spacetimes with homothetic self-similarity are studied in the context of Einstein's Theory of Gravity, and a class of exact solutions to th…
Topological Charged Black Holes in High Dimensional Spacetimes and Their Formation from Gravitational Collapse of a Type II Fluid
Yumei Wu, M. F. A. da Silva, N. O. Santos +1
Topological charged black holes coupled with a cosmological constant in spacetimes are studied, where is an Einstein space of the form ${}^{(D-2)}R_…
Dust Grain Orbital Behavior Around Ceres
R. Nazzario, T. W. Hyde, L. Barge
Many asteroids show indications they have undergone impacts with meteoroid particles having radii between 0.01 m and 1 m. During such impacts, small dust grains will be ejected at…
Finite Coulomb Crystal Formation
J. Vasut, T. W. Hyde, L. Barge
Dust particles immersed within a plasma environment, such as those found in planetary rings or comets, will acquire an electric charge. If the ratio of the inter-particle potential…
Dusty Plasma Correlation Function Experiment
B. Smith, J. Vasut, T. Hyde +4
Dust particles immersed within a plasma environment, such as those in protostellar clouds, planetary rings or cometary environments, will acquire an electric charge. If the ratio o…
Dispersion Relations for Thermally Excited Waves in Plasma Crystals
K. Qiao, T. W. Hyde
Thermally excited waves in a Plasma crystal were numerically simulated using a Box_Tree code. The code is a Barnes_Hut tree code proven effective in modeling systems composed of la…
Heat content asymptotics for operators of Laplace type with spectral boundary conditions
P. Gilkey, K. Kirsten, JH. Park
Let be an operator of Dirac type and let be the associated operator of Laplace type. We impose spectral boundary conditions and study the leading heat content coefficie…
Numerical Simulations and Analysis of Thermally Excited Waves in Plasma Crystals
K. Qiao, T. W. Hyde
A numerical model for a 2D-monolayer plasma crystal was established using the Box_tree code. Box_tree is a Barnes_Hut tree code which has proven effective in modeling systems compo…
Digital Imaging and Analysis of Dusty Plasmas
C. M. Boesse, M. K. Henry, T. W. Hyde +1
Dust particles immersed within a plasma environment, such as those found in planetary rings or cometary environments, will acquire an electric charge. If the ratio of interparticle…
Lattice Results on the Connected Neutron Charge Radius
Alfred Tang, Walter Wilcox, Randy Lewis
We describe a calculation using quenched lattice QCD of the connected part of the neutron electric form factor for momentum transfers in the range $0.3 {\rm GeV^2} \stackrel{<}{\si…
Strong ellipticity and spectral properties of chiral bag boundary conditions
C. G. Beneventano, P. B. Gilkey, K. Kirsten +1
We prove strong ellipticity of chiral bag boundary conditions on even dimensional manifolds. From a knowledge of the heat kernel in an infinite cylinder, some basic properties of t…
Functional determinants by contour integration methods
Klaus Kirsten, Alan McKane
We present a simple and accessible method which uses contour integration methods to derive formulae for functional determinants. To make the presentation as clear as possible, the…
Are Massive Elementary Particles Black Holes?
B. F. L. Ward
We use exact results in a new approach to quantum gravity to study the effect of quantum loop corrections on the behavior of the metric of space-time near the Schwarzschild radius…
Frobenius bimodules between noncommutative spaces
Christopher J. Pappacena
In this paper we study Frobenius bimodules between noncommutative spaces (quasi-schemes), developing some of their basic properties. If X and Y are spaces, we study those Frobenius…
Gravitational Collapse of Self-Similar Perfect Fluid in 2+1 Gravity
A. Y. Miguelote, N. A. Tomimura, Anzhong Wang
Perfect fluid with kinematic self-similarity is studied in 2+1 dimensional spacetimes with circular symmetry, and various exact solutions to the Einstein field equations are given.…
Charged Grains In Saturn's F-Ring: Interaction With Saturn's Magnetic Field
L. S. Matthews, T. W. Hyde
Saturn's dynamic F-Ring still presents a challenge for understanding and explaining the kinematic processes that lead to the changing structure visible in our observations of this…
A Bayesian Analysis of the Cepheid Distance Scale
T. G. Barnes, W. H. Jefferys, J. O. Berger +3
We develop and describe a Bayesian statistical analysis to solve the surface brightness equations for Cepheid distances and stellar properties. Our analysis provides a mathematical…
String Cosmology: A Review
Gerald Cleaver
The second string revolution, which begin around 1995, has led to a drastic alteration in our perception of the universe, perhaps even more so then did the first string revolution…
The Barnes zeta-function, sphere determinants and Glaisher- Kinkelin-Bendersky constants
J. S. Dowker, Klaus Kirsten
Summations and relations involving the Hurwitz and Riemann zeta-functions are extended first to Barnes zeta-functions and then to zeta-functions of general type. The analysis is mo…
NAHE-based string models with SU(4) X SU(2) X U(1) SO(10) Subgroup
Gerald B. Cleaver, Alon E. Faraggi, Sander Nooij
The orbifold GUT doublet-triplet splitting mechanism was discussed in 1994 in the framework of the NAHE-based free fermionic models in which the SO(10) GUT symmetry is broken to SO…