Receipt from E. Carroll, manager of the Welland House, St. Catharines for board

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board, Oct. 8, 1886.

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board, Nov. 8, 1886.

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board, Dec. 8, 1886

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board, Jan. 8, 1887.

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board, Feb. 8, 1887.

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board

Receipt from E. Carroll, manager of the Welland House, St. Catharines for board, Mar. 8, 1887.

Map (printed) of the state of Missouri issued by the State Board of Immigration

Map (printed) of the state of Missouri issued by the State Board of Immigration (50 cm. x 58 cm.), n.d.

Estimation of the Polak Model for a Developing Country Utilising the Currency Board : Case of Estonia.

Rapport de recherche

Quantum entanglement of particles in black hole neighborhoods.

Tesis (PH. D. in Industrial Physics Engineering) UANL, 2014.

Ethique du policy maker et dynamique macroéconomique en régime de Currency Board : le cas de Djibouti

Full Text / Article complet

Systematic construction of models for the exchange hole of density functional theory.

Dans ce travail, nous étendons le nombre de conditions physiques actuellement con- nues du trou d’échange exact avec la dérivation de l’expansion de quatrième ordre du trou d’échange sphérique moyenne exacte. Nous comparons les expansions de deux- ième et de quatrième ordre avec le trou d’échange exact pour des systèmes atomiques et moléculaires. Nous avons constaté que, en général, l’expansion du quatrième ordre reproduit plus fidèlement le trou d’échange exact pour les petites valeurs de la distance interélectronique. Nous démontrons que les ensembles de base de type gaussiennes ont une influence significative sur les termes de cette nouvelle condition, en étudiant com- ment les oscillations causées par ces ensembles de bases affectent son premier terme. Aussi, nous proposons quatre modèles de trous d’échange analytiques auxquels nous imposons toutes les conditions actuellement connues du trou d’échange exact et la nou- velle présentée dans ce travail. Nous évaluons la performance des modèles en calculant des énergies d’échange et ses contributions à des énergies d’atomisation. On constate que les oscillations causeés par les bases de type gaussiennes peuvent compromettre la précision et la solution des modèles.

STUDIES ON SCATTERING AND QUASI-NORMAL MODES IN BLACK HOLE SPACE-TIMES

The question of stability of black hole was first studied by Regge and Wheeler who investigated linear perturbations of the exterior Schwarzschild spacetime. Further work on this problem led to the study of quasi-normal modes which is believed as a characteristic sound of black holes. Quasi-normal modes (QNMs) describe the damped oscillations under perturbations in the surrounding geometry of a black hole with frequencies and damping times of oscillations entirely fixed by the black hole parameters.In the present work we study the influence of cosmic string on the QNMs of various black hole background spacetimes which are perturbed by a massless Dirac field.

Studies on Thermodynamics and No-hair Theorem in Black hole Spacetime

Department of Physics, Cochin University of Science and Technology

Studies on Quasinormal Modes and Late-time Tails in Black Hole Spacetimes

This thesis Entitled Studies on Quasinormal modes and Late-time tails black hole spacetimes. In this thesis, the signature of these new theories are probed on the evolution of field perturbations on the black hole spacetimes in the theory. Chapter 1 gives a general introduction to black holes and its perturbation formalism. Various concepts in the area covered by the thesis are also elucidated in this chapter. Chapter 2 describes the evolution of massive, charged scalar field perturbations around a Reissner-Nordstrom black hole surrounded by a static and spherically symmetric quintessence. Chapter 3 comprises the evolution of massless scalar, electromagnetic and gravitational fields around spherically symmetric black hole whose asymptotes are defined by the quintessence, with special interest on the late-time behavior. Chapter 4 examines the evolution of Dirac field around a Schwarzschild black hole surrounded by quintessence. Detailed numerical simulations are done to analyze the nature of field on different surfaces of constant radius . Chapter 5is dedicated to the study of the evolution of massless fields around the black hole geometry in the HL gravity.