A New Perspective on the Nonextremal Enhançon Solution

Generalized Milne Space, Eternal Accelerating Cosmology, Ep-branes and dS/CFT Correspondence

The Milne universe is an open Robertson-Walker universe with scale factor being equal to the cosmic time, which is therefore a locally flat spacetime. By analytically continuing the Schwarzschild spacetime, we obtain a generalized Milne space, in which the black hole horizon in the Schwarzschild spacetime turns to be a de Sitter-like horizon in the generalized Milne space. We present a solution...

Enhançon and Resolution of Singularity

We review the enhançon mechanism proposed by Johnson, Peet and Polchinski. If we consider the D6-brane wrapped on K3, then there appears a naked singularity called “repulson” in the supergravity solution. But this singularity is resolved by a shell structure called “enhançon”. In the interior of the enhançon, the abelian gauge symmetry is enhanced to a nonabelian one, and ordinary supergravity ...

A new perspective on the determinants of the concept of aging: a letter to the editor

A (Running) Bolt for New Reasons

We construct a four-parameter family of smooth, horizonless, stationary solutions of ungauged five-dimensional supergravity by using the four-dimensional Euclidean Schwarzschild metric as a base space and “magnetizing” its bolt. We then generalize this to a five-parameter family based upon the Euclidean Kerr-Taub-Bolt. These “running Bolt” solutions are necessarily non-static. They also have th...

Tail and Nontail Memory with Applications to Extreme Value and Robust Statistics

New notions of tail and nontail dependence are used to characterize separately extremal and nonextremal information, including tail log-exceedances and events, and tail-trimmed levels. We prove that near epoch dependence (McLeish, 1975; Gallant and White, 1988) and L0-approximability (Pötscher and Prucha, 1991) are equivalent for tail events and tail-trimmed levels, ensuring a Gaussian central ...