Results 31 to 40 of about 7,715,827 (290)

Partial Model Theory as Model Theory [PDF]

open access: yesErgo, an Open Access Journal of Philosophy, 2015
I show that the partial truth of a sentence in a partial structure is equivalent to the truth of that sentence in an expansion of a structure that corresponds naturally to the partial structure. Further, a mapping is a partial homomorphism/partial isomorphism between two partial structures if and only if it is a homomorphism/isomorphism between their ...
openaire   +1 more source

Effective-Field Theory for Model High-Tc Cuprates

open access: yesCondensed Matter, 2021
Starting with a minimal model for the CuO2 planes with the on-site Hilbert space reduced to only three effective valence centers [CuO4]7−,6−,5− (nominally Cu1+,2+,3+) with different conventional spin and different orbital symmetry, we propose a unified ...
Alexander Moskvin, Yuri Panov
doaj   +1 more source

Dynamic theory of the nuclear collective model [PDF]

open access: yes, 1964
The rotation-vibration model and the hydrodynamic dipole-oscillation model are unified. A coupling between the dipole oscillations and the quadrupole vibrations is introduced in the adiabatic approximation. The dipole oscillations act as a "driving force"
Danos, Michael, Greiner, Walter
core   +1 more source

Pengembangan Model Prediktif Pendeteksi Financial Fraud Berdasarkan Fraud Model Theory

open access: yesJournal of Management and Business Review, 2023
Financial fraud is among the rarest forms, resulting in the greatest organizational losses. Financial and reputational crises are examples of the costs of financial manipulation.
Putri Andini   +4 more
doaj   +1 more source

Analytic theory of the eight-vertex model [PDF]

open access: yes, 2006
We observe that the exactly solved eight-vertex solid-on-solid model contains an hitherto unnoticed arbitrary field parameter, similar to the horizontal field in the six-vertex model.
Albertini   +85 more
core   +2 more sources

Algebras of binary isolating formulas for theories of modular products of graphs

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
This article discusses the problems of constructing and classifying algebras generated by modular products of cycles. We demonstrate that algebras of binary isolating, used to analyze relationships between binary formulas of a theory, can be naturally ...
D.Y. Emelyanov
doaj   +1 more source

Teoria wielości rzeczywistości Leona Chwistka. Rys krytyczny [PDF]

open access: yesArgument, 2014
The purpose of this paper is to offer a logico‑philosophical critical overview of the theory of multiple realities (TWR). The paper is divided into three sections.
Hubert Bożek
doaj  

Model Building with F-Theory

open access: yes, 2011
Despite much recent progress in model building with D-branes, it has been problematic to find a completely convincing explanation of gauge coupling unification.
Donagi, Ron, Wijnholt, Martijn
core   +1 more source

Algebras of Binary Isolating Formulas for Homomorphic Product Theories

open access: yesИзвестия Иркутского государственного университета: Серия "Математика"
Algebras of distributions of binary isolating and semi-isolating formulas are objects that are derived for a given theory, and they specify the relations between binary formulas of the theory.
D.Yu. Emel’yanov
doaj   +1 more source

Thirring Model as a Gauge Theory [PDF]

open access: yes, 1995
We give another reformulation of the Thirring model (with four-fermion interaction of the current-current type) as a gauge theory and identify it with a gauge-fixed version of the corresponding gauge theory according to the Batalin-Fradkin formalism ...
Alvarez-Gaume   +50 more
core   +3 more sources

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