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Hirota's solitons in the affine and the conformal affine Toda models

- H.Aratyn, C. P. Constantinidis, L. Ferreira, J. F. Gomes, A. H. Zimerman
- Physics
- 14 December 1992

Department of Physics University of Illinois at Chicago, 801 W. Taylor Street, Chicago, IL 60607-7059

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Exact correlators of two-matrix models

- L. Bonora, C. P. Constantinidis, C. Xiong
- Mathematics
- 1 October 1996

Abstract We compute exact solutions of two-matrix models, i.e. detailed genus by genus expressions for the correlation functions of these theories, calculated without any approximation. We… Expand

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Electrically Charged Cold Black Holes in Scalar-Tensor Theories

- K. Bronnikov, C. P. Constantinidis, R. Evangelista, J. Fabris
- Physics
- 8 March 1999

We study the possible existence of charged black holes in the Bergmann–Wagoner class of scalar-tensor theories (STT) of gravity in four dimensions. The existence of black holes is shown for anomalous… Expand

16 1- PDF

Construction of exact Riemannian instanton solutions

- L. Bonora, C. P. Constantinidis, L. Ferreira, E. E. Leite
- Mathematics, Physics
- 24 August 2002

We present the exact construction of Riemannian (or stringy) instantons, which are classical solutions of 2D Yang–Mills theories that interpolate between initial and final string configurations. They… Expand

9 1- PDF

Quantization of Lorentzian 3D gravity by partial gauge fixing

- Rodrigo M. Barbosa, C. P. Constantinidis, Zui Oporto, O. Piguet
- Physics
- 24 April 2012

D = 2 + 1 gravity with a cosmological constant Λ has been shown by Bonzom and Livine to present a Barbero–Immirzi-like ambiguity depending on a parameter γ. We make use of this fact to show that, for… Expand

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Structure and stability of cold scalar-tensor black holes

- K. Bronnikov, G. Cl'ement, C. P. Constantinidis, J. Fabris
- Physics
- 14 January 1998

Abstract We study the structure and stability of the recently discussed spherically symmetric Brans-Dicke black-hole type solutions with an infinite horizon area and zero Hawking temperature,… Expand

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Cold scalar-tensor black holes: causal structure, geodesics, stability.

- K. Bronnikov, G. Clément, C. P. Constantinidis, J. Fabris
- Physics
- 24 April 1998

We study the structure and stability of spherically symmetric Brans-Dicke black-hole type solutions with an infinite horizon area and zero Hawking temperature, existing for negative values of the… Expand

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Quantization of the Jackiw-Teitelboim model

- C. P. Constantinidis, A. Pérez, O. Piguet
- Physics
- 2 December 2008

We study the phase space structure of the Jackiw-Teitelboim model in its connection variables formulation where the gauge group of the field theory is given by local SL(2,R)[or SU(2) for the… Expand

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Higher spin symmetries and w∞ algebra in the conformal affine Toda model

- H. Aratyn, C. P. Constantinidis, L. Ferreira, J. F. Gomes, A. H. Zimerman
- Physics
- 14 May 1992

Abstract As recently shown the conformal affine Toda models can be obtained via hamiltonian reduction from a two-loop Kac-Moody algebra. In this paper we propose a systematic procedure to analyze the… Expand

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Direct test of the integral Yang-Mills equations through S U (2 ) monopoles

- C. P. Constantinidis, L. Ferreira, G. Luchini
- Physics, Mathematics
- 10 October 2017

We use the SU(2) 't Hooft-Polyakov monopole configuration, and its BPS version, to test the integral equations of the Yang-Mills theory. Those integral equations involve two (complex) parameters… Expand

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