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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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87 papers · 1 filter
Mixed type multiple orthogonal polynomials for two Nikishin systems
U. Fidalgo Prieto, A. López García, G. López Lagomasino +1
We study the logarithmic and ratio asymptotic of linear forms constructed from a Nikishin system which satisfy orthogonality conditions with respect to a system of measures generat…
The Seventh Data Release of the Sloan Digital Sky Survey
K. Abazajian
This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDS…
The Uncanny Precision of the Spectral Action
Ali H. Chamseddine, Alain Connes
Noncommutative geometry has been slowly emerging as a new paradigm of geometry which starts from quantum mechanics. One of its key features is that the new geometry is spectral in…
Decomposition of geometric perturbations
Roman V. Buniy, Thomas W. Kephart
For an infinitesimal deformation of a Riemannian manifold, we prove that the scalar, vector, and tensor modes in decompositions of perturbations of the metric tensor, the scalar cu…
Periodic elements of the free idempotent generated semigroup on a biordered set
David Easdown, Mark Sapir, Michael Volkov
We show that every periodic element of the free idempotent generated semigroup on an arbitrary biordered set belongs to a subgroup of the semigroup.
On normal stability for nonlinear parabolic equations
Jan Pruess, Gieri Simonett, Rico Zacher
We show convergence of solutions to equilibria for quasilinear and fully nonlinear parabolic evolution equations in situations where the set of equilibria is non-discrete, but form…
Bergman polynomials on an Archipelago: Estimates, Zeros and Shape Reconstruction
Bjorn Gustafsson, Mihai Putinar, Ed Saff +1
Growth estimates of complex orthogonal polynomials with respect to the area measure supported by a disjoint union of planar Jordan domains (called, in short, an archipelago) are ob…
Schreier rewriting beyond the classical setting
Yuri Bahturin, Alexander Olshanskii
Using actions of free monoids and free associative algebras, we establish some Schreier-type formulas involving the ranks of actions and the ranks of subactions in free actions or…
Group-type subfactors and Hadamard matrices
Richard D. Burstein
A hyperfinite subfactor may be obtained from a symmetric commuting square via iteration of the basic construction. For certain commuting squares constructed from Hadamard ma…
The Full Spectrum Galactic Terrarium: MHz to TeV Observations of Various Critters
Mallory S. E. Roberts, C. Brogan, S. Ransom +13
Multi-wavelength studies at radio, infrared, optical, X-ray, and TeV wavelengths have discovered probable counterparts to many Galactic sources of GeV emission detected by EGRET. T…
Aetherizing Lambda: Barotropic Fluids as Dark Energy
Eric V. Linder, Robert J. Scherrer
We examine the class of barotropic fluid models of dark energy, in which the pressure is an explicit function of the density, p = f(ρ). Through general physical considerations we c…
Action and Index Spectra and Periodic Orbits in Hamiltonian Dynamics
Viktor L. Ginzburg, Basak Z. Gurel
The main theme of this paper is the connection between the existence of infinitely many periodic orbits for a Hamiltonian system and the behavior of its action or index spectrum un…
Late Time Decay of the False Vacuum, Measurement, and Quantum Cosmology
Lawrence M. Krauss, James Dent, Glenn D. Starkman
The recent suggestion that late time quantum dynamics may be important for resolving cosmological issues associated with our observed universe requires a consideration of several s…
The three dimensional dynamic structure of the inner Orion Nebula
C. R. O'Dell, W. J. Henney, N. P. Abel +2
The three dimensional structure of the brightest part of the Orion Nebula is assessed in the light of published and new data. We find that the widely accepted model of a concave bl…
A unitary invariant in Riemannian geometry
Alain Connes
We introduce an invariant of Riemannian geometry which measures the relative position of two von Neumann algebras in Hilbert space, and which, when combined with the spectrum of th…
Measuring the "non-stopping timeness" of ends of previsible sets
Ju-Yi Yen, Marc Yor
In this paper, we propose several "measurements" of the "non-stopping timeness" of ends g of previsible sets, such that g avoids stopping times, in an ambiant filtration. We then s…
Fundamental Properties of Low-Mass Stars and Brown Dwarfs
Michael C. Liu, Keivan G. Stassun, France Allard +7
Precise measurements of the fundamental properties of low-mass stars and brown dwarfs are key to understanding the physics underlying their formation and evolution. While there has…
Inclusive cross section and double helicity asymmetry for pi^0 production in p+p collisions at sqrt(s) = 62.4 GeV
PHENIX Collaboration, A. Adare
The PHENIX experiment presents results from the RHIC 2006 run with polarized proton collisions at sqrt(s) = 62.4 GeV for inclusive pi^0 production at mid-rapidity. Unpolarized cros…
The gluon spin contribution to the proton spin from the double helicity asymmetry in inclusive pi^0 production in polarized p+p collisions at sqrt(s)=200 GeV
PHENIX Collaboration, A. Adare
The double helicity asymmetry in neutral pion production for p_T = 1 to 12 GeV/c has been measured with the PHENIX experiment in order to access the gluon spin contribution, Delta-…
A Catalog of Extended Green Objects (EGOs) in the GLIMPSE Survey: A new sample of massive young stellar object outflow candidates
C. J. Cyganowski, B. A. Whitney, E. Holden +12
Using images from the Spitzer GLIMPSE Legacy survey, we have identified more than 300 extended 4.5 micron sources (abbreviated EGO, Extended Green Object, for the common coding of…
Polynomial maps over -adics and residual properties of mapping tori of group endomorphisms
Alexander Borisov, Mark Sapir
We continue our study of residual properties of mapping tori of free group endomorphisms. In this paper, we prove that each of these groups are virtually residually (finite )-gr…
Median structures on asymptotic cones and homomorphisms into mapping class groups
J. Behrstock, C. Drutu, M. Sapir
The main goal of this paper is a detailed study of asymptotic cones of the mapping class groups. In particular, we prove that every asymptotic cone of a mapping class group has a b…
Sequential adaptive compressed sampling via Huffman codes
Akram Aldroubi, Haichao Wang, Kourosh Zarringhalam
There are two main approaches in compressed sensing: the geometric approach and the combinatorial approach. In this paper we introduce an information theoretic approach and use res…
Probing embryonic tissue mechanics with laser hole-drilling
Xiaoyan Ma, Holley E. Lynch, Peter C. Scully +1
We use laser hole-drilling to assess the mechanics of an embryonic epithelium during development - in vivo and with subcellular resolution. We ablate a subcellular cylindrical hole…