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Ambjorn, J., Jurkiewicz, J., and Loll, R. (2010) Quantum Gravity as Sum over Space-Times. In: Boob-Bavnbek, B., Esposito, G. and Lesch, M., Eds., New Paths towards Quantum Gravity, Lecture Notes in Physics 807, Springer, Berlin, 59-124.
https://doi.org/10.1007/978-3-642-11897-5_2

has been cited by the following article:

• TITLE: Creating a (Quantum?) Constraint, in Pre Planckian Space-Time Early Universe via the Einstein Cosmological Constant in a One to One and Onto Comparison between Two Action Integrals

  AUTHORS: Andrew Walcott Beckwith

  KEYWORDS: Ricci Scalar, Inflaton Physics

  JOURNAL NAME: Journal of High Energy Physics, Gravitation and Cosmology, Vol.3 No.2, March 1, 2017

  ABSTRACT: We are looking at comparison of two action integrals and we identify the Lagrangian multiplier as setting up a constraint equation (on cosmological expansion). Two action integrals, one which is connected with quantum gravity is called equivalent to another action integral, and the 2nd action integral has a Lagrangian multiplier in it. Using the idea of a Lagrangian multiplier as a constraint equation, we draw our conclusions in a 1 to 1 and onto assumed equivalence between the two action integrals. The viability of the 1 to 1 and onto linkage between the two action integrals is open to question, but if this procedure is legitimate, the conclusions so assumed are fundamentally important.