Results 81 to 90 of about 3,204 (220)
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
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
Constraining Electron‐Impact Ionization of O2 Through UV Aurora Observations at Ganymede
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract While photoionization rates of Ganymede's O2 ${\mathrm{O}}_{2}$ dominated atmosphere are well constrained, the contribution of electron‐impact ionization is rather uncertain. Previous quantitative estimates have relied on assumptions about densities and energy distributions of precipitating electrons, or on rare spacecraft measurements that ...
Stefan Duling +5 more
wiley +1 more source
Traces of Extra Dimensions in Cosmology [PDF]
, 2010 In this thesis, we discuss the observational consequences of extra dimensions on cosmological phenomena. We begin with an overview of extra dimensions, from the initial ideas of Kaluza and Klein to the more recent concept of braneworld models and in ...
O'Callaghan, Eimear Eileen +1 more
core
, 2011 We show that the regularity of the gravitational metric tensor in spher- ically symmetric spacetimes cannot be lifted from C0,1 to C1,1 within the class of C1,1 coordinate transformations in a neighborhood of a point of shock wave inter- action in ...
Reintjes, Moritz, Temple, Blake
core +1 more source
Relativistic gauge conditions in quantum cosmology
Physical Review D, 1995 26 pages, plain TeX, no ...
ESPOSITO G +3 more
openaire +4 more sources
Impact of relativistic effects on galaxy clustering future measurements
, 2022 reservedGalaxy clustering measurements are one of the main targets for future cosmological surveys. Such surveys will probe large cosmological volumes, which will require the inclusion of relativistic effects in order to provide a robust and reliable ...
SEMENZATO, FEDERICO
core
Principle of «Observability»: Why Cannot the Theory of the Infinite Universe be Realized?
RUDN Journal of Philosophy, 2009 The present work demonstrates that all cosmological theories obey an epistemological relation: all steps cosmology makes in the direction of acquiring the status of a natural science are inversely proportional to its steps in the direction of allowing ...
A N Pavlenko
doaj
The Astrophysical JournalAn analysis of the cosmological constant Ω _Λ fitted to subsamples of the Pantheon+ Type Ia supernova sample spanning 2 π steradians for a grid of 432 pole positions covering the whole sky reveals two large-scale asymmetries.
Alejandro Clocchiatti +3 more
doaj +1 more source
Weaving Political Identities: Jean‐Luc Nancy, Empedocles, and (the Later) Plato
Constellations, Volume 33, Issue 2, Page 185-193, June 2026.
Benjamin Hutchens
wiley +1 more source