See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/239535569 Second Order Scalar Invariants of the Riemann Tensor Article in International Journal of Modern Physics D · July 2002 DOI: 10.1142/S0218271802002037 · Source: arXiv CITATIONS 46 READS 32 5 authors, including: Some of the authors of this publication are also working on these related projects: Possible Gamma-Ray Burst radio detections by the Square Kilometre Array. New perspectives View project Book about the Foundations of mathematics and Physics for XXI century View project Salvatore Capozziello University of Naples Federico II 539 PUBLICATIONS 11,788 CITATIONS SEE PROFILE Remo Ruffini International Center for Relativistic Astrophysics 718 PUBLICATIONS 6,896 CITATIONS SEE PROFILE All content following this page was uploaded by Salvatore Capozziello on 17 January 2017. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately.