Invariant characterization of DOVID security features using a photometric descriptor

2015 ◽  
Author(s):  
Svorad Stole ◽  
Daniel Soukup ◽  
Reinhold Huber-Mork
Keyword(s):  
Invariant Characterization

Gauge-Invariant Characterization of Yang–Mills–Higgs Equations

2006 ◽  
Vol 8 (1) ◽  
pp. 203-217 ◽  
Author(s):  
Marco Castrillón López ◽  
Jaime Muñoz Masqué
Keyword(s):  
Gauge Invariant ◽  
Yang Mills ◽  
Invariant Characterization

scholarly journals An Invariant Characterization of the Levi-Civita Spacetimes

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1469
Author(s):  
Cooper K. Watson ◽  
William Julius ◽  
Matthew Gorban ◽  
David D. McNutt ◽  
Eric W. Davis ◽  
...  
Keyword(s):  
Einstein’S Equations ◽  
Einstein's Equations ◽  
English Speaking ◽  
Invariant Characterization

In the years 1917–1919 Tullio Levi-Civita published a number of papers presenting new solutions to Einstein’s equations. This work, while partially translated, remains largely inaccessible to English speaking researchers. In this paper we review these solutions, and present them in a modern readable manner. We will also compute both Cartan–Karlhede and Carminati–Mclenaghan invariants such that these solutions are invariantly characterized by two distinct methods. These methods will allow for these solutions to be totally and invariantly characterized. Because of the variety of solutions considered here, this paper will also be a useful reference for those seeking to learn to apply the Cartan–Karlhede algorithm in practice.

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