Results 71 to 80 of about 51,813 (205)
Autoparallels and the Inverse Problem of the Calculus of Variations
Fortschritte der Physik, Volume 74, Issue 5, May 2026.ABSTRACT We prove that autoparallel curves associated with a torsion‐free but not necessarily metric‐compatible affine connection can be derived from an action principle. We explicitly construct the action functional and show by standard variational techniques that it produces the desired equations.
Lavinia Heisenberg
wiley +1 more source
A Non-Polynomial Gravity Formulation for Loop Quantum Cosmology Bounce
Galaxies, 2017 Recently the so-called mimetic gravity approach has been used to obtain corrections to the Friedmann equation of General Relativity similar to the ones present in loop quantum cosmology.
Stefano Chinaglia +2 more
doaj +1 more source
Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model
Systems Research and Behavioral Science, Volume 43, Issue 3, Page 1212-1228, May/June 2026.ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley +1 more source
Living Reviews in Relativity, 2004 The observable universe could be a 1+3-surface (the "brane") embedded in a 1+3+$d$-dimensional spacetime (the "bulk"), with Standard Model particles and fields trapped on the brane while gravity is free to access the bulk.
Maartens Roy
doaj
Quantum Gravity: General Introduction and Recent Developments
, 2005 I briefly review the current status of quantum gravity. After giving some general motivations for the need of such a theory, I discuss the main approaches in quantizing general relativity: Covariant approaches (perturbation theory, effective theory, and ...
Aharony +59 more
core +1 more source
May I pick your brain? Local minds as living cadastres in a Portuguese eleventh‐century lawsuit
Early Medieval Europe, Volume 34, Issue 2, Page 231-253, May 2026.In the context of a dispute with the monastery of Lorvão, in the late eleventh century, the monks of Vacariça, near Coimbra (modern Portugal), carried out a field enquiry in the village of Recardães. This was part of a failed attempt to repossess a number of land plots that they claimed were theirs, but had lost control of.
Julio Escalona
wiley +1 more source
, 2011 Gauge invariance of scalar perturbations is studied together with the associated equations of motion. Extending methods developed in the framework of hamiltonian General Relativity, the Hamilton-Jacobi equation is investigated into the details in Loop ...
Barrau, Aurelien, Cailleteau, Thomas
core +3 more sources
Philosophy and Phenomenological Research, Volume 112, Issue 3, Page 608-616, May 2026.ABSTRACT Bayesian epistemology faces serious challenges when dealing with self‐locating evidence. This paper argues that, given two modest assumptions about how confirmation should work (Patterning and Live Centers), Bayesianism faces an unavoidable dilemma.
Yoaav Isaacs
wiley +1 more source
A Possible Solution to the Mystery of the ANITA Anomalous Events
Annalen der Physik, Volume 538, Issue 4, April 2026.In 2006 and 2014, the Antarctic Impulsive Transient Antenna (ANITA), a balloon‐borne radio observatory flying over Antarctica, detected two strange upward‐going radio pulse events that have not yet been explained by our current understanding of physics.
Massimo Villata
wiley +1 more source
Consistent discrete gravity solution of the problem of time: a model
, 2003 The recently introduced consistent discrete lattice formulation of canonical general relativity produces a discrete theory that is constraint-free. This immediately allows to overcome several of the traditional obstacles posed by the ``problem of time ...
Gambini, Rodolfo +2 more
core +1 more source