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The elementary diagram of a trivial, weakly minimal structure is near model complete
elementary diagram model complete
2015/9/28
We prove that if M is any model of a trivial, weakly minimal theory,
then the elementary diagram T(M) eliminates quantifiers down
to Boolean combinations of certain existential formulas.
Model completeness for trivial, uncountably categorical theories of Morley rank one
uncountably categorical theories Model completeness
2015/9/28
The present paper is a direct continuation of [2], where it is shown that any strongly
minimal trivial theory is model complete after naming constants for a model. In this
paper we show that this re...
Trivial, strongly minimal theories are model complete after naming constants
model complete naming constants
2015/9/25
We prove that if M is any model of a trivial, strongly
minimal theory, then the elementary diagram Th(MM ) is a model
complete LM -theory. We conclude that all countable models of
a trivial, strong...
Descriptive set theory and uncountable model theory
Descriptive set theory uncountable model theory
2015/9/25
In the early days of the development of model theory it was considered
natural and was certainly beneficial to assume that the theories under investigation
were in a countable language. The primary ...
ON TWO-STEP ESTIMATION OF A SPATIAL AUTOREGRESSIVE MODEL WITH AUTOREGRESSIVE DISTURBANCES AND ENDOGENOUS REGRESSORS
Cliff–Ord spatial model Generalized method of moments estimation Limited information estimation
2015/9/24
In this paper, we consider a spatial-autoregressive model with autoregressive disturbances,
where we allow for endogenous regressors in addition to a spatial lag of the dependent variable.
We sugges...
Scale interactions on diurnal toseasonal timescales and their relevanceto model systematic errors
diurnal cycle MJO convection ocean-atmosphere interaction
2015/9/17
Examples of current research into systematic errors in climate models are used to demonstrate the importance of scale interactions on diurnal,intraseasonal and seasonal timescales for the mean and var...
Analysis of the mid-latitude weather regimes in the 200-year control integration of the SINTEX model
Coupled General Circulation Model systematic error non-linear dynamics flow regimes
2015/9/17
Recent results indicate that climate predictions require models which can simulate accurately natural circulation regimes and their associated variability. The main purpose of this study is to investi...
A 1000-year simulation with the IPSL ocean-atmosphere coupled model
coupled climate model long-termclimate simulation oceanic overturning circulation model drift
2015/9/17
A 1000-year climate simulation is run with the ocean-atmosphere coupled model developed at the Institute Pierre-Simon Laplace (IPSL, Paris). No flux adjustment is used. The drift of the model is analy...
Atlantic air-sea interaction and model validation
North Atlantic predictability interaction validation NAO anticyclonicity
2015/9/17
An analysis of observations from 1948-1998 suggests that the atmosphere in the North Atlantic region does respond to North Atlantic Sea-Surface Temperatures (SSTs) throughout the annual cycle. In the ...
The role of the high resolution weather forecast in estimating the run-offusing a simple hydrological model
high resolution forecast heavy precipitation
2015/9/16
Recent and repeated episodes of severe weather in Italy have stressed the need to have a suffi ciently accurate forecast
to give adequate warning to the involved areas. The impact of the precipitatio...
A geomagnetic reference model for Albania, Southern Italy and the Ionian Sea from 1990 to 2005
regional main field modelling sphericalcap harmonic analysis magnetic repeat stations
2015/9/15
Taking advantage of the measurements undertaken during the Albanian and Italian magnetic repeat station networks since 1990, as well as of a selected set of 豶sted satellite total field measurements, a...
A possible model for initiationof ULF oscillation in magma
ULF oscillations magma volcano electromagnetic emission
2015/9/14
During the period just prior to an earthquake, an electomagnetic emission develops over seismic zones. In this paper, a model of excitation of magnetic fields over zones of volcanic activity is propos...
Numerical model of gas dispersion emitted from volcanic sources
gas dispersion volcanic gas K-theory computer model
2015/9/10
An Eulerian model for passive gas dispersion based on the K-theory for turbulent diffusion, coupled with a mass
consistent wind model is presented. The procedure can be used to forecast gas concentra...
A model of sulphur solubility for hydrous mafic melts: application to the determination of magmatic fluid compositions of Italian volcanoes
sulphur hydrous basalts volcanic gas
2015/9/10
We present an empirical model of sulphur solubility that allows us to calculate f S2 if P, T, fO2 and the melt composition,
including H2O and S, are known. The model is calibrated against three main ...
Acid-base properties and structons: towards a structural model for predicting the thermodynamic properties of silicate melts
silicate melt acid-base oxide melt thermodynamic properties
2015/9/10
Phase equilibrium relationships in igneous systems can be estimated using empirical mathematical models based on
multi-component regular solution formulae. Although these provide useable results with...