Miguel Sánchez

activity

20022025

most citedA note on the uniqueness of global static decompositions

15 citations · 38 across the 7 of their papers we have counts for

collaborators

Showing gr-qcShow all

3 papers · 1 filter

gr-qc2025★ 2 cited

Lorentzian-Euclidean black holes and Lorentzian to Riemannian metric transitions

Rossella Bartolo, Erasmo Caponio, Anna Valeria Germinario +1

In recent papers on spacetimes with a signature-changing metric, the concept of a Lorentzian-Euclidean black hole and new elements for Lorentzian-Riemannian signature change have b…

gr-qc2007★ 15 cited

A note on the uniqueness of global static decompositions

Miguel Sánchez, José M. M. Senovilla

We discuss when static Killing vector fields are standard, that is, leading to a global orthogonal splitting of the spacetime. We prove that such an orthogonal splitting is unique…

gr-qc2002

Causality and Conjugate Points in General Plane Waves

J. L. Flores, M. Sánchez

Let $M = M_{0} \times R^{2}$ be a pp--wave type spacetime endowed with the metric $< \cdot, \cdot >_{z} =< \cdot, \cdot >_{x} + 2 d u d v + H (x, u) d u^{2}$ , where $(M_{0}, < \cdot, \cdot >_{x})$ is any R…