Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Harvard UniversityUS735 papers
- Massachusetts Institute of TechnologyUS455 papers
- University of OxfordGB379 papers
- University of ChicagoUS368 papers
- University of MichiganUS356 papers
- Lawrence Berkeley National LaboratoryUS354 papers
- The Ohio State UniversityUS350 papers
- Yale UniversityUS348 papers
- University of PittsburghUS317 papers
- Argonne National LaboratoryUS316 papers
- University College LondonGB312 papers
- University of PisaIT310 papers
48 papers · 1 filter
Temperley-Lieb pfaffinants and Schur -positivity conjectures
Thomas Lam, Pavlo Pylyavskyy
We study pfaffian analogues of immanants, which we call pfaffinants. Our main object is the TL-pfaffinants which are analogues of Rhoades and Skandera's TL-immanants. We show that…
Causal Inference Through Potential Outcomes and Principal Stratification: Application to Studies with "Censoring" Due to Death
Donald B. Rubin
Causal inference is best understood using potential outcomes. This use is particularly important in more complex settings, that is, observational studies or randomized experiments…
The XMM-Newton wide-field survey in the COSMOS field. IV: X-ray spectral properties of Active Galactic Nuclei
V. Mainieri, G. Hasinger, N. Cappelluti +25
We present a detailed spectral analysis of point-like X-ray sources in the XMM-COSMOS field. Our sample of 135 sources only includes those that have more than 100 net counts in the…
Capillary Filling of Anodized Alumina Nanopore Arrays
K. J. Alvine, O. G. Shpyrko, P. S. Pershan +2
The filling behavior of a room temperature solvent, perfluoromethylcyclohexane, in approximately 20 nm nanoporous alumina membranes was investigated in situ with small angle x-ray…
A Survey for Supernovae in Massive High-Redshift Clusters
Keren Sharon, A. Gal-Yam, D. Maoz +12
We describe our ongoing program designed to measure the SN-Ia rate in a sample of massive z=0.5-0.9 galaxy clusters. The SN-Ia rate is a poorly known observable, especially at high…
Moduli Stabilization in Non-Geometric Backgrounds
Katrin Becker, Melanie Becker, Cumrun Vafa +1
Type II orientifolds based on Landau-Ginzburg models are used to describe moduli stabilization for flux compactifications of type II theories from the world-sheet CFT point of view…
Affinely invariant matching methods with discriminant mixtures of proportional ellipsoidally symmetric distributions
Donald B. Rubin, Elizabeth A. Stuart
In observational studies designed to estimate the effects of interventions or exposures, such as cigarette smoking, it is desirable to try to control background differences between…
Rejoinder to "Equi-energy sampler with applications in statistical inference and statistical mechanics"
S. C. Kou, Qing Zhou, Wing H. Wong
Rejoinder to ``Equi-energy sampler with applications in statistical inference and statistical mechanics'' by Kou, Zhou and Wong [math.ST/0507080]
Towards a kinematic model of the Local Group
A. Brunthaler, M. J. Reid, H. Falcke +2
Measuring the proper motions and geometric distances of galaxies within the Local Group is very important for our understanding of the history, present state and future of the Loca…
Edge singularities in high-energy spectra of gapped one-dimensional magnets in strong magnetic fields
A. Friedrich, A. K. Kolezhuk, I. P. McCulloch +1
We use the dynamical density matrix renormalization group technique to show that the high-energy part of the spectrum of a S=1 Haldane chain, placed in a strong external magnetic f…
XMM detection of the supernova remnant G337.2+0.1
Jorge A. Combi, Juan F. Albacete Colombo, Gustavo E. Romero +1
We report the first XMM detection of the SNR candidate G337.2+0.1 (=AX J1635.9-4719). The object shows centrally filled and diffuse X-ray emission. The emission peaks in the hard 3…
Imaging Electrical Conduction through InAs Nanowires
Ania C. Bleszynski, Floris A. Zwanenburg, Robert M. Westervelt +3
We show how a scanning probe microscope (SPM) can be used to image electron flow through InAs nanowires, elucidating the physics of nanowire devices on a local scale. A charged SPM…
Astrometry in Wide-field Surveys
Andras Pal, Gaspar Bakos
We present a robust and fast algorithm for performing astrometry and source cross-identification on two dimensional point lists, such as between a catalogue and an astronomical ima…
Localization, Hurwitz Numbers and the Witten Conjecture
Lin Chen, Yi Li, Kefeng Liu
In this note, we use the method of [3] to give a simple proof of famous Witten conjecture. Combining the coefficients derived in our note and this method, we can derive more recurs…
Estimating the Causal Effects of Marketing Interventions Using Propensity Score Methodology
Donald B. Rubin, Richard P. Waterman
Propensity score methods were proposed by Rosenbaum and Rubin [Biometrika 70 (1983) 41--55] as central tools to help assess the causal effects of interventions. Since their introdu…
Entropy Theory for Cross Sections
Nir Avni
We define the notion of entropy for a cross section of an action of continuous amenable group and relate it to the entropy of the ambient action. As a result, we are able to answer…
A Markov chain on permutations which projects to the PASEP
Sylvie Corteel, Lauren K. Williams
The partially asymmetric exclusion process (PASEP) is an important model from statistical mechanics which describes a system of interacting particles hopping left and right on a on…
Faces of Generalized Permutohedra
Alexander Postnikov, Victor Reiner, Lauren Williams
The aim of the paper is to calculate face numbers of simple generalized permutohedra, and study their f-, h- and gamma-vectors. These polytopes include permutohedra, associahedra,…
Quantum Field Theory on Curved Backgrounds, I. The Euclidean Functional Integral
Arthur Jaffe, Gordon Ritter
We give a mathematical construction of Euclidean quantum field theory on certain curved backgrounds. We focus on generalizing Osterwalder-Schrader quantization, as these methods ha…
Chiral molecules split light: Reflection and refraction in a chiral liquid
Ambarish Ghosh, Peer Fischer
A light beam changes direction as it enters a liquid at an angle from another medium, such as air. Should the liquid contain molecules that lack mirror symmetry, then it has been p…
Infall, Fragmentation and Outflow in Sgr B2
Sheng-Li Qin, Jun-Hui Zhao, James M. Moran +5
Observations of HCO lines and continuum at 1.3 mm towards Sgr B2(N) and Sgr B2(M) cores were carried out with the SMA. We imaged HCO line absorption against the continu…
Measurement of the B0 -> Lambda-bar p pi Branching Fraction and Study of the Decay Dynamics
The BABAR Collaboration, B. Aubert
We present a measurement of the B0 -> Lambda-bar p pi branching fraction performed using the BaBar detector at the PEP-II asymmetric energy e+e- collider. Based on a 232 million BB…
Combinatorial symbolic powers
Seth Sullivant
Symbolic powers are studied in the combinatorial context of monomial ideals. When the ideals are generated by quadratic squarefree monomials, the generators of the symbolic powers…
Formation of z ~ 6 quasars from hierarchical galaxy mergers
Yuexing Li, Lars Hernquist, Brant Robertson +8
The discovery of luminous quasars at redshift z ~ 6 indicates the presence of supermassive black holes (SMBHs) of mass ~10^9 Msun when the Universe was less than one billion years…