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- University of LisbonPT162 papers
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5 papers · 1 filter
Quasilinear reformulation of Lovelock gravity
Steven Willison
Here we give an extended review of the quasilinear reformulation of the Lovelock gravitational field equations in harmonic gauge presented in 1409.6656 [gr-qc]. This is important i…
Confronting predictive texture zeros in lepton mass matrices with current data
Luís M. Cebola, David Emmanuel-Costa, Ricardo González Felipe
Several popular Ansätze of lepton mass matrices that contain texture zeros are confronted with current neutrino observational data. We perform a systematic -analysis in a wide…
Conditional tests for elliptical symmetry using robust estimators
Ana M. Bianco, Graciela Boente, Isabel M. Rodrigues
This paper presents a procedure for testing the hypothesis that the underlying distribution of the data is elliptical when using robust location and scatter estimators instead of t…
Presentations for monoids of finite partial isometries
Vítor H. Fernandes, Teresa M. Quinteiro
In this paper we give presentations for the monoid of all partial isometries on and for its submonoid of all order-preserving pa…
Cosmological implications of Bumblebee vector models
Diogo Capelo, Jorge Páramos
The Bumblebee Model of spontaneous Lorentz symmetry breaking is explored in a cosmological context, considering a single non-zero time component for the vector field. The relevant…