Localized D-dimensional global k-defects

Gravity of higher-dimensional global defects

Solutions of Einstein’s equations are found for global defects in a higherdimensional spacetime with a nonzero cosmological constant Λ. The defect has a (p − 1)-dimensional core (brane) and a ‘hedgehog’ scalar field configuration in the n extra dimensions. For Λ = 0 and n > 2, the solutions are characterized by a flat brane worldsheet and a solid angle deficit in the extra dimensions. For Λ > 0...

Gravity of superheavy higher-dimensional global defects

Numerical solutions of Einstein’s and scalar-field equations are found for a global defect in a higher-dimensional spacetime. The defect has a (3 + 1)dimensional core and a “hedgehog” scalar-field configuration in n = 3 extra dimensions. For sufficiently low symmetry-breaking scales η, the solutions are characterized by a flat worldsheet geometry and a constant solid deficit angle in the extra ...

Large k-D Simplices in the d-Dimensional Cube

Studies of Three-Body B^+→D ̅^* 〖(2007)〗^0 K^+ K ̅^0 and B^0→D^* 〖(2010)〗^- K^+ K ̅^0 Decays

We analyze three-body decays of and . Under the factorization approach, there are tree level diagrams for these decay modes and the transition matrix element of decay is factorized into a form factor multiplied by decay constant and form factor multiplied into weak vertices form factor. The transition matrix element of decay is also factorized into a form factor multiplied into weak vertic...

Localized K-Flats

K-flats is a model-based linear manifold clustering algorithm which has been successfully applied in many real-world scenarios. Though some previous works have shown that K-flats doesn’t always provide good performance, little effort has been devoted to analyze its inherent deficiency. In this paper, we address this challenge by showing that the deteriorative performance of K-flats can be attri...