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In this article we give sufficient and necessary conditions for the validity of the Huygens’ principle for the Klein–Gordon equation in the spacetime of the Friedmann–Lemaítre–Robertson–Walker models of cosmology.

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Huygens’ Principle for the Klein–Gordon Equation in FLRW Spacetime with Spatial Hyperbolic Sections

  • 会议论文

  • 发表日期：

    2026年

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  • Anahit Galstian

摘要

In this article we give sufficient and necessary conditions for the validity of the Huygens’ principle for the Klein–Gordon equation in the spacetime of the Friedmann–Lemaítre–Robertson–Walker models of cosmology.