392 citations
- Centre National de la Recherche ScientifiqueFR9 papers
- Dartmouth CollegeUS8 papers
- Instituto de Astrofísica de CanariasES8 papers
- Iowa State UniversityUS8 papers
- North Carolina State UniversityUS8 papers
- Astronomical Observatory of RomeIT7 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE7 papers
- Oak Ridge National LaboratoryUS7 papers
- Astronomical Observatory of CapodimonteIT6 papers
- Carnegie ObservatoriesUS6 papers
- Cerro Tololo Inter-American ObservatoryCL6 papers
- Space Telescope Science InstituteUS6 papers
6 papers · 1 filter
Spinfoams: Foundations
Jonathan Engle, Simone Speziale
Spinfoams provide a framework for the dynamics of loop quantum gravity that is manifestly covariant under the full four-dimensional diffeomorphism symmetry group of general relativ…
Government Investments and Entrepreneurship
Joao Ricardo Faria, Laudo Ogura, Mauricio Prado +1
How can governments attract entrepreneurs and their businesses? The view that new business creation grows with the optimal level of government investments remains appealing to poli…
Socioeconomics of Urban Travel in the U.S.: Evidence from the 2017 NHTS
Xize Wang, John L. Renne
Using the 2017 National Household Travel Survey (NHTS), this study analyzes America's urban travel trends compared with earlier nationwide travel surveys, and examines the variatio…
Multiplane gravitational lenses with an abundance of images
Charles R. Keeton, Erik Lundberg, Sean Perry
We consider gravitational lensing of a background source by a finite system of point-masses. The problem of determining the maximum possible number of lensed images has been comple…
On the geometry of the black-to-white hole transition within a single asymptotic region
Muxin Han, Carlo Rovelli, Farshid Soltani
We write explicitly the complete Lorentzian metric of a singularity-free spacetime where a black hole transitions into a white hole located in its same asymptotic region. In partic…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XXIV. Differences in internal kinematics of multiple stellar populations
M. Libralato, E. Vesperini, A. Bellini +12
Our understanding of the kinematic properties of multiple stellar populations (mPOPs) in Galactic globular clusters (GCs) is still limited compared to what we know about their chem…