Generation of interface for an Allen-Cahn equation with nonlinear diffusion [PDF]
, 2009 In this note, we consider a nonlinear diffusion equation with a bistable reaction term arising in population dynamics. Given a rather general initial data, we investigate its behavior for small times as the reaction coefficient tends to infinity: we ...
Alfaro +12 more
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Shifts in interregional proportions in population settlement over the territory of Russia in 2002–2017 [PDF]
Население и экономика, 2019 The article deals with the trends of population size changes in the regions of the Russian Federation between 2002 and 2017 on the basis of data of all-Russian population censuses and current statistics.
Pavel L. Kirillov, Alla G. Makhrova
doaj +3 more sources
Two-mode effective interaction in a double-well condensate [PDF]
, 2013 We investigate the origin of a disagreement between the two-mode model and the exact Gross-Pitaevskii dynamics applied to double-well systems. In general this model, even in its improved version, predicts a faster dynamics and underestimates the critical
Capuzzi, P. +2 more
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Population–reaction model and microbial experimental ecosystems for understanding hierarchical dynamics of ecosystems [PDF]
, 2016 Understanding ecosystem dynamics is crucial as contemporary human societies face ecosystem degradation. One of the challenges that needs to be recognized is the complex hierarchical dynamics.
Hosoda, Kazufumi +3 more
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Probabilistic Guarded P Systems, A New Formal Modelling Framework [PDF]
, 2014 Multienvironment P systems constitute a general, formal framework for modelling the dynamics of population biology, which consists of two main approaches: stochastic and probabilistic. The framework has been successfully used to model biologic systems
A Păun +18 more
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Local existence for a general model of size-dependent population dynamics
Abstract and Applied Analysis, 1997 We shall investigate a size structured population dynamics with aging and birth functions having general forms. The growth rate we deal with depends not only on the size but also on time.
Nobuyuki Kato, Hiroyuki Torikata
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Positive global solutions for a general model of size-dependent population dynamics
Abstract and Applied Analysis, 2000 We study size-structured population models of general type which have the growth rate depending on the size and time. The local existence and uniqueness of the solution have been shown by Kato and Torikata (1997).
Nobuyuki Kato
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Ecology and Evolution, 2021 Mutualisms are ubiquitous in nature, provide important ecosystem services, and involve many species of interest for conservation. Theoretical progress on the population dynamics of mutualistic interactions, however, comparatively lagged behind that of ...
Kayla R. S. Hale, Fernanda S. Valdovinos
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Mapping Population Dynamics at Local Scales Using Spatial Networks
Complexity, 2021 Nowadays, around half of the global population lives in urban areas. This rate is expected to increase up to two-thirds by the year 2050. Most studies analyze urban dynamics in wide geographic ranges, focusing mainly on cities.
José Balsa-Barreiro +2 more
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Cooperating or Fighting with Control Noise in the Optimal Manipulation of Quantum Dynamics [PDF]
, 2006 This paper investigates the impact of control field noise on the optimal manipulation of quantum dynamics. Simulations are performed on several multilevel quantum systems with the goal of population transfer in the presence of significant control noise ...
Rabitz, Herschel, Shuang, Feng
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