Results 21 to 30 of about 732,524 (327)

Hilbert's 'World Equations' and His Vision of a Unified Science [PDF]

, 2004
In summer 1923, a year after his lectures on the `New Foundation of Mathematics' and half a year before the republication of his two notes on the `Foundations of Physics,' Hilbert delivered a trilogy of lectures in Hamburg.
Majer, Ulrich, Sauer, Tilman
core   +3 more sources

On the History of Unified Field Theories. Part II. (ca. 1930 – ca. 1965)

Living Reviews in Relativity, 2014
The present review intends to provide an overall picture of the research concerning classical unified field theory, worldwide, in the decades between the mid-1930 and mid-1960.
Hubert F. M. Goenner
doaj   +1 more source

Interacting diffusive unified dark energy and dark matter from scalar fields

European Physical Journal C: Particles and Fields, 2017
Here we generalize ideas of unified dark matter–dark energy in the context of two measure theories and of dynamical space time theories. In two measure theories one uses metric independent volume elements and this allows one to construct unified dark ...
David Benisty, E. I. Guendelman
doaj   +1 more source

Electrostatics and confinement in Einstein's unified field theory

, 2007
A way for appending sources at the right-hand sides of the field equations of Einstein's unified field theory is recalled. Two exact solutions endowed with point sources in equilibrium are shown, and their physical meaning is discussed.Comment: 4 pages ...
Antoci, S., Liebscher, D. -E., Mihich, L.   +2 more
core   +2 more sources

Six-dimensional considerations of Einstein's connection for the first two classes. I. The recurrence relations in 6-g-UFT

International Journal of Mathematics and Mathematical Sciences, 1999
Lower dimensional cases of Einstein's connection were already investigated by many authors for n=2,3,4,5. This paper is the first part of the following series of two papers, in which we obtain a surveyable tensorial representation of 6-dimensional ...
Kyung Tae Chung, Gye Tak Yang, In Ho Hwang   +2 more
doaj   +1 more source

A unified approach to holomorphic anomaly equations and quantum spectral curves

Journal of High Energy Physics, 2019
We present a unified approach to holomorphic anomaly equations and some well-known quantum spectral curves. We develop a formalism of abstract quantum field theory based on the diagrammatics of the Deligne-Mumford moduli spaces ℳ ¯ g , n $$ {\overline ...
Zhiyuan Wang, Jian Zhou
doaj   +1 more source

The Status of Geometry and Matter in the Reinterpreted WdW Equation

Physical Sciences Forum, 2023
This paper shows that the field defined by the Wheeler–DeWitt equation for pure gravity is neither a standard gravitational field nor the field representing a particular universe.
Avadhut V. Purohit
doaj   +1 more source

The Electrostatics of Einstein's Unified Field Theory

, 2004
When sources are added at their right-hand sides, and g_{(ik)} is a priori assumed to be the metric, the equations of Einstein's Hermitian theory of relativity were shown to allow for an exact solution that describes the general electrostatic field of n ...
A. Einstein, A. Einstein, A. Einstein, A. Einstein, A. Einstein, A. Lichnerowicz, A. Lichnerowicz, A. Papapetrou, D.-E. Liebscher, Dierck-Ekkehard Liebscher, E. Schrödinger, E. Schrödinger, E. Schrödinger, E. Schrödinger, H. Treder, J. Callaway, J. Hély, J. Hély, J.A. Schouten, K. Borchsenius, Luigi Mihich, M. Wyman, S. Antoci, S. Antoci, S. Antoci, Salvatore Antoci   +25 more
core   +5 more sources

The MedSupport Multilevel Intervention to Enhance Support for Pediatric Medication Adherence: Development and Feasibility Testing

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction We developed MedSupport, a multilevel medication adherence intervention designed to address root barriers to medication adherence. This study sought to explore the feasibility and acceptability of the MedSupport intervention strategies to support a future full‐scale randomized controlled trial.
Elizabeth G. Bouchard, Hital Patel, Paula C. Vincent, Justine Kahn, Kira Bona, Thai Hoa Tran, Elisa M. Rodriguez, Kristopher Attwood, Kara M. Kelly   +8 more
wiley   +1 more source

The Geometric Proca–Weyl Field as a Candidate for Dark Matter

Universe
We consider the Weyl invariant theory of gravity as an alternative approach to the problem of the origin of dark matter. According to this theory, the geometric Weyl 1-form effectively behaves as a Proca field.
Mauro Duarte, Fábio Dahia, Carlos Romero   +2 more
doaj   +1 more source