Results 81 to 90 of about 179 (91)

Pregeometry and an Extended String Action [PDF]

Progress of Theoretical Physics, 1988
On propose une action de couche d'univers pour une corde transversalement etendue. C'est celle d'une theorie gravitationnelle et de jauge avec des champs de matiere sur la couche d'univers, avec des effets additionnels de la seconde quantite ...
K Akama, Keiichi Akama
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Geometry, pregeometry and beyond [PDF]

Studies in History and Philosophy of Science Part B - Studies in History and Philosophy of Modern Physics, 2005
41 pages, Latex. v2: Date added.
Meschini, Diego, Lehto, Markku, Piilonen, Johanna   +2 more
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Spinor Pregeometry at Finite Tempereture [PDF]

Progress of Theoretical Physics, 1987
We derive the effective action for gravity at finite temperature in spinor pregeometry. The temperature-dependent effective potential for the vierbein which is parametrized as ekp = b diag (1, p, p, p) has the minimum at b=O for fixed p, and behaves asp3 for fixed b. These results indicate that the system of fundamental matters in spinor pregeometry is
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Toward an Axiomatic Pregeometry of Space-Time

International Journal of Theoretical Physics, 1998
We present a deductive theory of space-timewhich is realistic, objective, and relational. It isrealistic because it assumes the existence of physicalthings endowed with concrete properties. It is objective because it can be formulated without anyreference to knowing subjects or sensorial fields.Finally, it is relational because it assumes thatspace ...
Perez Bergliaffa, S. E., Romero, G. E., Vucetich, H.   +2 more
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Random graphs as a model for pregeometry

International Journal of Theoretical Physics, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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On Groups Carrying Homogeneous Weakened Pregeometries

Siberian Advances in Mathematics, 2020
Summary: We consider the question on the existence and properties of groups carrying homogeneous weakened pregeometries.
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On the Vámos matroid, homogeneous pregeometries and dense pairs [PDF]

Australas. J Comb., 2019
Let \((M,cl)\) be a set \(M\) with closure operator \(cl\colon\mathcal{P}(M)\longrightarrow\mathcal{P}(M)\) such that \((M,cl)\) forms a pregeometry. \((M,cl)\) is called weakly homogeneous if for any \(a_1,\ldots,a_n,b,c\in M\) such that \(b,c\not\in cl(a_1,\ldots,a_n)\), there exists a closure preserving bijection \(f\colon cl(a_1,\ldots, a_n,b ...
Malhar M. Mukhopadhyay, Evgueni Vassiliev   +1 more
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The Calculus of Indications: A Candidate for the Pregeometry of Spacetime?

Series on Knots and Everything, 2023
exaly  

Subquark pregeometry with spontaneously broken conformal invariance

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 1980
Keiichi Akama, Hidezumi Terazawa
exaly  

Pregeometry

2005
K Akama
exaly