Results 11 to 20 of about 147 (64)
A conceptual analysis of Julian Barbour's time [PDF]
, 2011 One of Julian Barbourâ s main aims is to solve the problem of time that appears in quantum geometrodynamics (QG). QG involves the application of canonical quantization procedure to the Hamiltonian formulation of General Relativity.
Kon, Maria
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Quantum Gravity: Motivations and Alternatives [PDF]
, 2009 The mutual conceptual incompatibility between General Relativity and Quantum Mechanics / Quantum Field Theory is generally seen as the most essential motivation for the development of a theory of Quantum Gravity.
Hedrich, Reiner
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Heun Functions and Some of Their Applications in Physics
Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018 Most of the theoretical physics known today is described by using a small number of differential equations. For linear systems, different forms of the hypergeometric or the confluent hypergeometric equations often suffice to describe the system studied.
M. Hortaçsu, Saber Zarrinkamar
wiley +1 more source
Optimized Reputable Sensing Participants Extraction for Participatory Sensor Networks
Mathematical Problems in Engineering, Volume 2014, Issue 1, 2014., 2014 By collecting data via sensors embedded personal smart devices, sensing participants play a key role in participatory sensor networks. Using information provided by reputable sensing participants ensures the reliability of participatory sensing data.
Weiwei Yuan +3 more
wiley +1 more source
From Physics Model to Results: An Optimizing Framework for Cross‐Architecture Code Generation
Scientific Programming, Volume 21, Issue 1-2, Page 1-16, 2013., 2013 Starting from a high‐level problem description in terms of partial differential equations using abstract tensor notation, the Chemora framework discretizes, optimizes, and generates complete high performance codes for a wide range of compute architectures. Chemora extends the capabilities of Cactus, facilitating the usage of large‐scale CPU/GPU systems
Marek Blazewicz +8 more
wiley +1 more source
Spacetime and the Philosophical Challenge of Quantum Gravity [PDF]
, 2001 We survey some philosophical aspects of the search for a quantum theory of gravity, emphasising how quantum gravity throws into doubt the treatment of spacetime common to the two `ingredient theories' (quantum theory and general relativity), as a 4 ...
Butterfield, Jeremy +3 more
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, 2010 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.
Roy Maartens +3 more
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Under-determination in Cosmology: an Invitation [PDF]
, 2012 I discuss how modern cosmology illustrates under-determination of theoretical hypotheses by data, in ways that are different from most philosophical discussions.
Butterfield, Jeremy, Jeremy Butterfield
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Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.Abstract The geology of a potential Artemis landing site on Mons Malapert is examined using remote sensing techniques and lessons learned from Apollo missions to the lunar surface. Orthomosaics, digital terrain models, illumination models, thermal conditions, crater size‐frequency distribution analyses, geomorphological mapping, spectral and ...
David A. Kring +21 more
wiley +1 more source
Take a Ride on a Time Machine [PDF]
, 2003 We discuss the possibility to build and operate a time machine, a device that produces closed timelike curves (CTCs). We specify the spacetime structure needed to implement a time machine and assess attempted no-go results against time machines in ...
Wuthrich, Christian +2 more
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