234 citations
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT3 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di LecceIT2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2 papers
- Istituto per le Applicazioni del Calcolo Mauro PiconeIT2 papers
- University of Rome Tor VergataIT2 papers
- Athinoula A. Martinos Center for Biomedical ImagingUS1 paper
- Collegio Carlo AlbertoIT1 paper
- Dubna State UniversityRU1 paper
- Institut de Mathématiques de Jussieu-Paris Rive GaucheFR1 paper
- Institute of Atmospheric Sciences and ClimateIT1 paper
- Instituto Superior TécnicoPT1 paper
14 papers
Evidence of ion diffusion at room temperature in microcrystals of the Bi2Sr2CaCu2O8+delta superconductor
M. Truccato, C. Lamberti, C. Prestipino +1
We have studied Bi-2212 microcrystals aged at ambient conditions for 40 days. Combined x-ray absorption near edge structure and x-ray fluorescence measurements with micrometer spac…
Integrable Low Dimensional Models for Black Holes and Cosmologies from High Dimensional Theories
V. de Alfaro, A. T. Filippov
We describe a class of integrable models of 1+1 and 1-dimensional dilaton gravity coupled to scalar fields. The models can be derived from high dimensional supergravity theories by…
Pseudo-differential operators in algebras of generalized functions and global hypoellipticity
Claudia Garetto
The aim of this work is to develop a global calculus for pseudo-differential operators acting on suitable algebras of generalized functions. In particular, a condition of global hy…
Constant connections, quantum holonomies and the Goldman bracket
J. E. Nelson, R. F. Picken
In the context of (2+1)--dimensional quantum gravity with negative cosmological constant and topology R x T^2, constant matrix--valued connections generate a q--deformed representa…
Second variational derivative of gauge-natural invariant Lagrangians and conservation laws
M. Francaviglia, M. Palese, E. Winterroth
We consider the second variational derivative of a given gauge-natural invariant Lagrangian taken with respect to (prolongations of) vertical parts of gauge-natural lifts of infini…
Some Applications of the ADM Formalism
J. E. Nelson
The ADM Formalism is discussed in the context of 2+1--dimensional gravity, uniting two areas of relativity theory in which Stanley Deser has been particularly active. For spacetime…