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19922026
Showing 1999Show all

29 papers · 1 filter

gr-qc1999★ 74 cited

Gravitomagnetism and the Clock Effect

B. Mashhoon, F. Gronwald, H. I. M. Lichtenegger

The main theoretical aspects of gravitomagnetism are reviewed. It is shown that the gravitomagnetic precession of a gyroscope is intimately connected with the special temporal stru…

gr-qc1999★ 8 cited

Sustained resonance: a binary system perturbed by gravitational radiation

C. Chicone, B. Mashhoon, D. G. Retzloff

The general phenomena associated with sustained resonance are studied in this paper in connection with relativistic binary pulsars. We represent such a system by two point masses i…

gr-qc1999

Lorentz Covariant Theory of Precise Doppler Measurements

Sergei M. Kopeikin

The Lorentz covariant theory of precise Doppler measurements (PDM) based on the retarded Liénard-Wiechert solution of the Einstein equations is described. An exact solution of equa…

astro-ph1999★ 1 cited

Binary Pulsar Tests of General Relativity in the Presence of Low-Frequency Noise

Sergei M. Kopeikin, Vladimir A. Potapov

The influence of the low-frequency timing noise on the precision of measurements of the Keplerian and post-Keplerian orbital parameters in binary pulsars is studied. Fundamental li…

math.FA1999★ 1 cited

On subspaces of c_0 and extension of operators into C(K)-spaces

N. J. Kalton

Johnson and Zippin recently showed that if is a weak^*-closed subspace of and T:X-> C(K) is any bounded operator then T can extended to a bounded operator $\tilde T:\e…

math.FA1999

Analyzing the Weyl-Heisenberg Frame Identity

Peter G. Casazza, M. C. Lammers

In 1990, Daubechies proved a fundamental identity for Weyl-Heisenberg systems which is now called the Weyl-Heisenberg Frame Identity. WH-Frame Identity: If $g\in W(L^{\infty},L^{1}…

math.FA1999★ 7 cited

Szlenk indices and uniform homeomorphisms

G. Godefroy, N. J. Kalton, G. Lancien

We prove some rather precise renorming theorems for Banach spaces with Szlenk index . We use these theorems to show the invariance of certain quantitative Szlenk-type indices…

math.AP1999

Finite time blow up for a Navier-Stokes like equation

Stephen Montgomery-Smith

We consider an equation similar to the Navier-Stokes equation. We show that there is initial data that exists in every Triebel-Lizorkin or Besov space (and hence in every Lebesgue…

math.FA1999★ 2 cited

Weyl-Heisenberg Frames, Translation Invariant Systems and the Walnut Representation

Peter G. Casazza, Ole Christensen, A. J. E. M. Janssen

We present a comprehensive analysis of the convergence properties of the frame operators of Weyl-Heisenberg systems and shift-invariant systems, and relate these to the convergence…

math.FA1999

A solution to the problem of maximal regularity

N. J. Kalton, G. Lancien

We give a negative solution to the problem of the -maximal regularity on various classes of Banach spaces including -spaces with .

math.SP1999★ 64 cited

On Local Borg-Marchenko Uniqueness Results

F. Gesztesy, B. Simon

We provide a new short proof of the following fact, first proved by one of us in 1998: If two Weyl-Titchmarsh m-functions, , of two Schrödinger operators $H_j = -\f{d^2}{dx…

astro-ph1999★ 75 cited

X-ray and Radio Interactions in the Cores of Cooling Flow Clusters

E. Rizza, C. Loken, M. Bliton +3

We present high resolution ROSAT x-ray and radio observations of three cooling flow clusters containing steep spectrum radio sources at their cores. All three systems exhibit stron…

math.PR1999

Measuring the magnitude of sums of independent random variables

Pawel Hitczenko, Stephen Montgomery-Smith

This paper considers how to measure the magnitude of the sum of independent random variables in several ways. We give a formula for the tail distribution for sequences that satisfy…

astro-ph1999★ 28 cited

Stormy Weather and Cluster Radio Galaxies

J. O. Burns, C. Loken, K. Roettiger +5

New adaptive mesh refinement N-body + hydrodynamics numerical simulations are used to illustrate the complex and changing cluster environments in which many radio galaxies live and…

astro-ph1999★ 35 cited

An X-ray and Optical Investigation of the Environments Around Nearby Radio Galaxies

N. A. Miller, F. N. Owen, J. O. Burns +2

Investigations of the cluster environment of radio sources have not shown a correlation between radio power and degree of clustering. However, it has been demonstrated that extende…

astro-ph1999★ 97 cited

A catalog of Nearby Poor Clusters of Galaxies

R. A. White, M. Bliton, S. P. Bhavsar +4

A catalog of 732 optically selected, nearby poor clusters of galaxies covering the entire sky north of declination is presented. The poor clusters, called WBL clus…

cond-mat.mes-hall1999★ 19 cited

Collective charge-density excitations of non-circular quantum dots in a magnetic field

C. A. Ullrich, G. Vignale

Recent photoabsorption measurements have revealed a rich fine structure in the collective charge-density excitation spectrum of few-electron quantum dots in the presence of magneti…

astro-ph1999★ 15 cited

Massive Cooling Flow Clusters Inhabit Crowded Environments

Chris Loken, Adrian L. Melott, Christopher J. Miller

With the availability of large-scale redshift survey data, it is now becoming possible to explore correlations between large-scale structure and the properties and morphologies of…

math.SP1999★ 12 cited

Weyl-Titchmarsh M-Function Asymptotics for Matrix-Valued Schrödinger Operators

Steve Clark, Fritz Gesztesy

We explicitly determine the high-energy asymptotics for Weyl-Titchmarsh matrices associated with general matrix-valued Schrödinger operators on a half-line.

cond-mat.soft1999★ 62 cited

The effect of geometrical confinement on the interaction between charged colloidal suspensions

E. Allahyarov, I. D'Amico, H. Löwen

The effective interaction between charged colloidal particles confined between two planar like-charged walls is investigated using computer simulations of the primitive model descr…

astro-ph1999★ 47 cited

Weak Gravitational Lensing and Cluster Mass Estimates

Christopher A. Metzler, Martin White, Michael Norman +1

Hierarchical theories of structure formation predict that clusters of galaxies should be embedded in a web like structure, with filaments emanating from them to large distances. Th…

astro-ph1999★ 15 cited

The X-ray Luminosity Function of Nearby Rich and Poor Clusters of Galaxies: A Cosmological Probe

Michael J. Ledlow, Chris Loken, Jack O. Burns +2

In this letter, we present a new determination of the local (z<0.09) X-ray luminosity function (XLF) using a large, statistical sample of 294 Abell clusters and the ROSAT All-Sky-S…

astro-ph1999★ 223 cited

A Cluster Merger and the Origin of the Extended Radio Emission in Abell 3667

K. Roettiger, J. O. Burns, J. M. Stone

We present a numerical model for the extended steep-spectrum radio sources and the elongated X-ray structure in A3667 based on new 3-dimensional MHD/N-body simulations. The X-ray a…

astro-ph1999★ 160 cited

Magnetic Field Evolution in Merging Clusters of Galaxies

K. Roettiger, J. M. Stone, J. O. Burns

We present initial results from the first 3-dimensional numerical magnetohydrodynamical (MHD) simulations of magnetic field evolution in merging clusters of galaxies. Within the fr…