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4 papers · 2 filters
Rotating Black Hole Entropy from Two Different Viewpoints
Ee Chang-Young, Daeho Lee, Myungseok Yoon
Using the brick-wall method, we study the entropy of Kerr-Newman black hole from two different viewpoints, a rest observer at infinity and zero angular momentum observer near horiz…
Noncommutative BTZ Black Hole in Polar Coordinates
Ee Chang-Young, Daeho Lee, Youngone Lee
Based on the equivalence between the three dimensional gravity and the Chern-Simons theory, we obtain a noncommutative BTZ black hole solution as a solution of $U(1,1)\times U(1,1)…
Noncommutative Supertori in Two Dimensions
Ee Chang-Young, Hoil Kim, Hiroaki Nakajima
First we consider the deformations of superspaces with N=(1,1) and N=(2,2) supersymmetries in two dimensions. Among these the construction of noncommutative supertorus with odd spi…
Kerr-Newman-de Sitter Solution on DGP Brane
Daeho Lee, Ee Chang-Young, Myungseok Yoon
We find an exact solution of Kerr-Newman-de Sitter type on the braneworld(4D) of the DGP model. When a constant 4D Ricci scalar is assumed, only zero(flat) and a positive(de-Sitter…