Results 31 to 40 of about 859 (81)
On closure operators of Jonsson sets
Қарағанды университетінің хабаршысы. Математика сериясыThe work is related to the study of the model-theoretic properties of Jonsson theories, which, generally speaking, are not complete. In the article, on the Boolean of Jonsson subsets of the semantic model of some fixed Jonsson theory, the concept of the
Olga Ulbrikht
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Local and Global Properties of the World [PDF]
, 1997 The essence of the method of physics is inseparably connected with the problem of interplay between local and global properties of the universe. In the present paper we discuss this interplay as it is present in three major departments of contemporary ...
Demaret, Jacques +2 more
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Various Actions for Pregeometry [PDF]
Progress of Theoretical Physics, 1991 Various actions for pregeometry are presented and compared. The «space-field identity» which equates the n-beins to the derivatives of fundamental scalars is derived from a simple action but seems to be too restrictive to be ...
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Supersimple ω-categorical theories and pregeometries
Annals of Pure and Applied Logic, 2019 23 ...
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, 2010 Just like the vector gauge bosons in the gauge theories, it is now known that gravitons acquire mass in the process of spontaneous symmetry breaking of diffeomorphisms through the condensation of scalar fields.
ICHIRO ODA +3 more
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Membrane pregeometry and the vanishing of the cosmological constant [PDF]
Classical and Quantum Gravity, 1992 We suggest a model of induced gravity in which the fundamental object is a relativistic {\it membrane} minimally coupled to a background metric and to an external three index gauge potential. We compute the low energy limit of the two-loop effective action as a power expansion in the surface tension.
A. Aurilia +2 more
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Horizon thermodynamics in pregeometry
Journal of Physics: Conference Series, 2013 The discovery of the various thermodynamical aspects of classical gravity has led to a picture in which Einstein equations might be seen as an equation of state, relating the dynamics of null hypersurfaces to thermodynamic relations for a system at or close to equilibrium.
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Pregeometry over locally o‐minimal structures and dimension
Mathematical Logic Quarterly, 2023 AbstractWe define a discrete closure operator for definably complete locally o‐minimal structures . The pair of the underlying set of and the discrete closure operator forms a pregeometry. We define the rank of a definable set over a set of parameters using this fact and call it ‐dimension.
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Natural models of theories of green points [PDF]
, 2014 We explicitly present expansions of the complex field which are models of the theories of green points in the multiplicative group case and in the case of an elliptic curve without complex multiplication defined over $\mathbb{R}$.
Boris Zilber, Caycedo, Juan Diego
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, 2020 We examine the first order structure of pregeometries of structures built via Hrushovski constructions. In particular, we show that the class of flat pregeometries is an amalgamation class such that the pregeometry of the unbounded arity Hrushovski construction is precisely its generic.
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