Search Results - subject:"branching"

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Non-local Branching Superprocesses and Some Related Models

Dawson, Donald A.; Gorostiza, Luis G. - Départment des sciences administratives, Université … - 2001

A new formulation of non-local branching superprocesses is given from which we derive as special cases the rebirth, the …

Persistent link: https://www.econbiz.de/10005773158

Hierarchical equilibria of branching populations

Dawson, D.A.; Gorostiza, L.G.; Wakolbinger, A. - Départment des sciences administratives, Université … - 2000

)N consisting of families of individuals undergoing critical branching random walk and in addition these families also develop … according to a critical branching process. Strong transience of the random walk guarantees existence of an equilibrium for this … two-level branching system. In the limit N -> (infinity symbol) (called the hierarchical mean field limit), the …

Persistent link: https://www.econbiz.de/10005773153

Bayesian conjugate analysis of the Galton-Watson process

Mendoza, Manuel; Gutiérrez-Peña, Eduardo - In: TEST: An Official Journal of the Spanish Society of … 9 (2000) 1, pp. 149-171

Persistent link: https://www.econbiz.de/10005184336

Internal avalanches and restructuring in granular media

Krishnamurthy, S.; Loreto, V.; Herrmann, H.J.; Roux, S. - In: Physica A: Statistical Mechanics and its Applications 270 (1999) 1, pp. 89-96

We study the phenomenon of internal avalanching within the context of recently proposed “Tetris” lattice models for granular media. We consider a packing of particles subjected to two different dynamics. In the first case, we arrest the system at different instances during an “aging”...

Persistent link: https://www.econbiz.de/10011063008

Faceted-to-rough transition in a branching growth model

Lucena, Liacir S; Silva, Luciano R da; Roux, Stéphane - In: Physica A: Statistical Mechanics and its Applications 266 (1999) 1, pp. 86-91

A growth model, introduced to describe the development of branched polymers in an heterogeneous environment, gives rise to clusters whose boundary is either faceted or rough. We study the transition between these two morphologies as a function of the parameters of the model. The phase diagram is...

Persistent link: https://www.econbiz.de/10010664932

The boundary of “life” for a self-organized critical evolution: the role of the interaction range

Vandewalle, N.; Ausloos, M. - In: Physica A: Statistical Mechanics and its Applications 245 (1997) 3, pp. 494-502

competing entities which are located at the extremities of the branches. Speciation (branching) events are supposed to be driven …

Persistent link: https://www.econbiz.de/10011061364

Local asymptotic normality of a sequential model for marked point processes and its applications

Nishiyama, Yoichi - In: Annals of the Institute of Statistical Mathematics 47 (1995) 2, pp. 195-209

Persistent link: https://www.econbiz.de/10005616169

Exponential families with variance functions in<InlineEquation ID="IE1"> <EquationSource Format="TEX"> $$\sqrt {\Delta P} (\sqrt \Delta )$$ </EquationSource> </InlineEquation>: Seshadri’s class: Seshadri’s class

Kokonendji, Célestin - In: TEST: An Official Journal of the Spanish Society of … 3 (1994) 2, pp. 123-172

Persistent link: https://www.econbiz.de/10005613239

Stability equations for processes with stationary independent increments using branching processes and Poisson mixtures

van Harn, K.; Steutel, F.W. - In: Stochastic Processes and their Applications 45 (1993) 2, pp. 209-230

directions. Most importantly, a generalized multiplication operation is used in which subcritical branching processes, both with …

Persistent link: https://www.econbiz.de/10008873592

The supercritical Galton-Watson process in varying environments--Seneta-Heyde norming

Biggins, J. D.; D'Souza, J. C. - In: Stochastic Processes and their Applications 48 (1993) 2, pp. 237-249

A natural sufficient condition is given for a Galton-Watson process in a varying environment to have a single rate of growth that obtains throughout the survival set of the process. In the homogeneous process the growth rate is provided by the usual Seneta-Heyde norming.

Persistent link: https://www.econbiz.de/10008873886