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STUDY OF THE DIFFUSION EQUATION WITH
A CONTRIBUTION TO THE MATHEMATICAL THEORY
2 other sections not shown
applications approximation arbitrary assume assumptions asymptotically become extinct biological association birth calculated Chapter coexisting species computed conjugate systems considered continuous stochastic process corresponding curve of type death decrease denotes the number deterministic differential equations diffusion equation epidemic equal example exists expected value expression Feller finite fluctuations follows force function G. H. Hardy given growth coefficients Hence hypothesis increase infection infinite initial values integral curve interval Kolmogorov Lanchester limit logistic law Lotka mathematical McKendrick mean values negative number of individuals observed obtain original oscillations paper period population density positive constant positive numbers predators probability probability theory problem removing logarithms result roots solution species tends statistical steady-state stochastic tends to zero theorem theory threshold value tion Translators Translators'Note University of London variables variations Vito Volterra Volterra vx,y x-force