Redshift in Friedmann's cosmological model
A. Zięba (1969)
Applicationes Mathematicae
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A. Zięba (1969)
Applicationes Mathematicae
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Sven Guldberg (1935)
Aktuárské vědy
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Ryszard Rudnicki, Radosław Wieczorek (2006)
Bulletin of the Polish Academy of Sciences. Mathematics
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We present two new models of the dynamics of phytoplankton aggregates. The first one is an individual-based model. Passing to infinity with the number of individuals, we obtain an Eulerian model. This model describes the evolution of the density of the spatial-mass distribution of aggregates. We show the existence and uniqueness of solutions of the evolution equation.
J. Grabowski (1976)
Applicationes Mathematicae
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A. Zięba (1971)
Applicationes Mathematicae
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R. Bartoszyński (1972)
Applicationes Mathematicae
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Izidor Hafner, Tomislav Žitko (2007)
Visual Mathematics
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Paul D. Bacsich (1972)
Colloquium Mathematicae
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Benettin, G., Rondoni, L. (2001)
Mathematical Physics Electronic Journal [electronic only]
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W. Klonecki (1976)
Applicationes Mathematicae
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Germaná, Clara, Guerrini, Luca (2005)
APPS. Applied Sciences
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R. Bartoszyński (1972)
Applicationes Mathematicae
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Vysotskiĭ, V.V. (2005)
Journal of Mathematical Sciences (New York)
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Daniel Bouche, Alain Decoster, Laurent Desvillettes, Valeria Ricci (2013)
MathematicS In Action
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We propose in this short note a method enabling to write in a systematic way a set of refined equations for average ion models in which correlations between populations are taken into account, starting from a microscopic model for the evolution of the electronic configuration probabilities. Numerical simulations illustrating the improvements with respect to standard average ion models are presented at the end of the paper.
H. J. Rossberg, G. Siegel (1974)
Applicationes Mathematicae
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Saharon Shelah (2012)
Colloquium Mathematicae
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We sort out to a large extent when a (first order complete theory) T has a superlimit model in a cardinal λ. Also we deal with related notions of being limit.