Stability issues of black hole in non-local gravity

We discuss stability issues of Schwarzschild black hole in non-local gravity. It is shown that the stability analysis of black hole for the unitary and renormalizable non-local gravity with $\gamma_2=-2\gamma_0$ cannot be performed in the Lichnerowicz operator approach. On the other hand, for the unitary and non-renormalizable case with $\gamma_2=0$, the black hole is stable against the metric perturbations. For non-unitary and renormalizable local gravity with $\gamma_2=-2\gamma_0={\rm const}$ (fourth-order gravity), the small black holes are unstable against the metric perturbations. This implies that what makes the problem difficult in stability analysis of black hole is the simultaneous requirement of unitarity and renormalizability around the Minkowski spacetime.Comment: 1+15 pages, one figure, version to appear in Physics Letters

Reverend David Yonggi Cho’s Leadership as Manifested in the Spirituality of the Saints of a Full Gospel Church

This research has the purpose of organizing and analyzing the spirituality of Korean Pentecostal movement. Up to now, many research on Korean Pentecostal movement have been published. However, many such researches have limited themselves on the analysis of Reverend David Yonggi Cho’s life and sermons. Of course, no one can deny its importance. Aside from Reverend Cho, it is difficult, if not possible, to explain Korean Pentecostal movement. Nevertheless, there is something that we should treat it lightly in understanding Korean Pentecostal movement. That is the spiritual experience of ordinary Pentecostal believers

The 20th Century Holiness Movement and Korean Holiness Groups

The Korean Christianity has been influenced by the American mission work whether its influence is good or bad. This study demonstrates how much the holiness movements in America have changed Korea Holiness churches. A schism among the American Holiness churches brought another one among Korean people; a revival in America brought another one in Korea. A theological change in American Holiness circle made the same kind of change in Korea. Therefore, we might study the Korea Holiness movement in relations with American Holiness movement

Reverend David Yonggi Cho’s Leadership as Manifested in the Spirituality of the Saints of a Full Gospel Church

This research has the purpose of organizing and analyzing the spirituality of Korean Pentecostal movement. Up to now, many research on Korean Pentecostal movement have been published. However, many such researches have limited themselves on the analysis of Reverend David Yonggi Cho’s life and sermons. Of course, no one can deny its importance. Aside from Reverend Cho, it is difficult, if not possible, to explain Korean Pentecostal movement. Nevertheless, there is something that we should treat it lightly in understanding Korean Pentecostal movement. That is the spiritual experience of ordinary Pentecostal believers