[PDF] Top 20 The properties of a stochastic model for two competing species

... I t is perhaps worth noting that if we were to derive the theoretical variances from the type of continuous time model suggested by Bartlett (1955, 1957; cf. also Whittle, 1957) for stud[r] ... See full document

... When k = 0-8 in this system, the 'normal' approximation suggests that the mean passage time to zero should be of the order of 35 steps for both species. Both of these means are somewhat [r] ... See full document

... the stochastic effects on growth rate and harvesting effort into account, we propose a stochastic delay model of species in two ...the stochastic delay model. By using the ... See full document

... the two-species mutualism model ...one species to survive if its density is too high. Thus the above model is not so good in describing the mutualism of two species (see ... See full document

... all species suffer from the fluctuation of the en- vironment such as food supplies, harvest and seasonal ef- fects of weather ...mutualism model with mean square periodic ... See full document

... The model analysis suggests that the Intermediate Disturbance Hypothesis applies in the aquatic communities and that the number of coexisting species is enhanced when there are differences in nutrient ... See full document

... the two firms are interrelated due to two factors: i) the negative slope of demand — which determines the drop of revenues from the monopoly to the duopoly, and ii) the additional licensing cost, γ F , paid ... See full document

... the model becomes much simpler [11] if one assumes that infection incidence is proportional to the infected fractions in each species (standard incidence) and not to the densities of infectives (mass action ... See full document

... Volterra model for species competition. The model included the competition between two or more species called inter-specific ...This model is of great interest to ecologist ... See full document

... 2009. [10] Bhaskara Rama Sharma B, “Some Mathematical Models in Competitive Eco- Systems”, Ph.D thesis, Dravidian University, 2009. [11] Phani Kumar N, “Some Mathematical Models of Ecological Commensalism”, Ph.D thesis, ... See full document

... inverse, stochastic–dynamic models from δ 18 O and dust records of unprecedented, subdecadal temporal resolu- ...Our model reproduces the dynamical characteristics of both the δ 18 O and dust proxy records, ... See full document

... — long cracks at low stress (LEFM type crack). The individual regimes and the boundaries bet­ ween them cannot be accurately measured and de­ termined. Therefore, in general, two methods are available for ... See full document

... a stochastic three-species nutrient-phytoplankton-zooplankton model in this ...the stochastic system is weakly persistent in the mean under some ... See full document

... [6] Yau MA, “A Mathematical model to break the life cycle of Anopheles mosquito,”Shiraz E-Medical Journal,vol. 12, No. 3, pp. 120–128, 2011. [7] Godwin ray anugboba okogun, “Life-table analysis of Anopheles ... See full document

... introducing stochastic variables related to the demands, lead times, ...involving stochastic variables are not capable of obtaining good solutions within short commuting ...efficient model by ... See full document

... systems, stochastic processes and Markov chains are applied contexts that are used in advanced ...sciences. Two basic topics in stochastic process are prediction and ...the stochastic or ... See full document

... simple two-phase population growth model to pure death process in stochastic ...a two-phase population growth model using control regime, while Zheng [11] built a two-phase ... See full document

... Fundamentally, PDWs differ from CDWs and SDWs because PDWs are particle-particle excita- tions with a finite momentum, whereas SDWs and CDWs are particle-hole excitations. Empirically, it is expected that the spatial ... See full document

... Since the SSA method keeps track of each transition, it can be impractical to implement for certain applications due to the computational time required. As a result, Gillepsie proposed an approximate procedure, the ... See full document

... This paper encompasses the original synthesis of the theory of real options, risk management, modelling uncertainty, the method of analytic hierarchy process and fuzzy logic, and it represents a contribution to the con- ... See full document