1. Boundary conditions and vacuum fluctuations in \({\mathrm {AdS}}_4\)

   • Vitor S. Barroso
   • J. P. M. Pitelli

   Research Article Open access 18 March 2020 Article: 29

   

2. Recursion relations for gravitational lensing

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   Research Article Open access 16 March 2020 Article: 28

   

3. On average properties of inhomogeneous fluids in general relativity III: general fluid cosmologies

   • Thomas Buchert
   • Pierre Mourier
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   Editor’s Choice (Research Article) 12 March 2020 Article: 27

   

4. On constrained analysis and diffeomorphism invariance of generalised Proca theories

   • Jarunee Sanongkhun
   • Pichet Vanichchapongjaroen

   Research Article 10 March 2020 Article: 26

5. Non-inertial effects on a generalized DKP oscillator in a cosmic string space-time

   • Soroush Zare
   • Hassan Hassanabadi
   • Marc de Montigny

   Research Article 09 March 2020 Article: 25

   

6. Non-perturbative 3D quantum gravity: quantum boundary states and exact partition function

   • Christophe Goeller
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   Editor’s Choice (Research Article) 06 March 2020 Article: 24