Bulletin of the
Korean Mathematical Society BKMS

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Bull. Korean Math. Soc. 2013; 50(2): 441-444

Printed March 31, 2013

https://doi.org/10.4134/BKMS.2013.50.2.441

Copyright © The Korean Mathematical Society.

On null cut points in two-dimensional spacetimes

Do-Hyung Kim and Byung Hak Kim

Dankook University, Kyung Hee University

Abstract

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It is shown that any two-dimensional globally hyperbolic spacetime with noncompact Cauchy surfaces has no null cut points.

Keywords: Lorentzian geometry, general relativity, causality, Cauchy surface, space-time, global hyperbolicity, null cut point

MSC numbers: Primary 53B30, 53C50

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