852 citations
- D. Baldomir2 profiles14 · h 28
- A. Wereszczyński2 profiles13 · h 26
- C. Adam2 profiles13 · h 28
- C. Pajares3 profiles13 · h 52
- J. Sanchez-Guillen13 · h 19
- N. Armesto12 · h 85
- C. Salgado11 · h 75
- E. Ferreiro10 · h 74
- A. Ramallo9 · h 31
- E. Zabrodin2 profiles8 · h 21
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- L. Bravina2 profiles8 · h 34
- Centre National de la Recherche ScientifiqueFR27 papers
- Institute of PhysicsPL19 papers
- Jagiellonian UniversityPL18 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR15 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR15 papers
- CEA Paris-SaclayFR12 papers
- Joint Institute for Nuclear ResearchRU12 papers
- Centro de Estudios CientíficosCL10 papers
- European Organization for Nuclear ResearchCH10 papers
- Helmholtz-Zentrum Dresden-RossendorfDE10 papers
- Instituto Superior TécnicoPT10 papers
- Istituto Nazionale di Fisica NucleareIT10 papers
15 papers · 1 filter
Locally Conformally Flat Lorentzian Gradient Ricci Solitons
M. Brozos-Vázquez, E. García-Río, S. Gavino-Fernández
It is shown that locally conformally flat Lorentzian gradient Ricci solitons are locally isometric to a Robertson-Walker warped product, if the gradient of the potential function i…
A sharp lower bound for the scalar curvature of certain steady gradient Ricci solitons
Manuel Fernandez-Lopez, Eduardo Garcia-Rio
We show that the scalar curvature of a steady gradient Ricci soliton satisfying that the ratio between the square norm of the Ricci tensor and the square of the scalar curvature is…
Higher-dimensional Osserman metrics with non-nilpotent Jacobi operators
E. Calvino-Louzao, E. Garcia-Rio, P. Gilkey +1
We exhibit Osserman metrics with non-nilpotent Jacobi operators and with non-trivial Jordan normal form in neutral signature (n,n) for any n which is at least 3. These examples adm…
Three-dimensional Lorentzian homogeneous Ricci solitons
M. Brozos-Vazquez, G. Calvaruso, E. Garcia-Rio +1
We describe three-dimensional Lorentzian homogeneous Ricci solitons, showing that all types (i.e. shrinking, expanding and steady) exist. Moreover, all non-trivial examples have no…
De Rham cohomology of diffeological spaces and foliations
G. Hector, E. Macías-Virgós, E. Sanmartín-Carbón
Let be a foliated manifold. We prove that there is a canonical isomorphism between the complex of base-like forms of the foliation and the…
Osserman and conformally Osserman manifolds with warped and twisted product structure
M. Brozos-Vazquez, E. Garcia-Rio, R. Vazquez-Lorenzo
We characterize Osserman and conformally Osserman Riemannian manifolds with the local structure of a warped product. By means of this approach we analyze the twisted product struct…