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The Entropy of Taub-Bolt Solution
L. Fatibene, M. Ferraris, M. Francaviglia +1
A geometrical framework for the definition of entropy in General Relativity via Noether theorem is briefly recalled and the entropy of Taub-Bolt Euclidean solutions of Einstein equ…
Two-spinor Formulation of First Order Gravity coupled to Dirac Fields
Marco Godina, Paolo Matteucci, Lorenzo Fatibene +1
Two-spinor formalism for Einstein Lagrangian is developed. The gravitational field is regarded as a composite object derived from soldering forms. Our formalism is geometrically an…
Remarks on Conserved Quantities and Entropy of BTZ Black Hole Solutions. Part II: BCEA Theory
L. Fatibene, M. Ferraris, M. Francaviglia +1
The BTZ black hole solution for (2+1)-spacetime is considered as a solution of a triad-affine theory (BCEA) in which topological matter is introduced to replace the cosmological co…
Remarks on Conserved Quantities and Entropy of BTZ Black Hole Solutions. Part I: the General Setting
L. Fatibene, M. Ferraris, M. Francaviglia +1
The BTZ stationary black hole solution is considered and its mass and angular momentum are calculated by means of Noether theorem. In particular, relative conserved quantities with…