Results 51 to 60 of about 587 (192)

Extinction times of multitype continuous-state branching processes

Annales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2023
A multitype continuous-state branching process (MCSBP) ${\rm Z}=({\rm Z}_{t})_{t\geq 0}$, is a Markov process with values in $[0,\infty)^{d}$ that satisfies the branching property. Its distribution is characterised by its branching mechanism, that is the data of $d$ Laplace exponents of $\mathbb{R}^d$-valued spectrally positive Lévy processes, each one
Chaumont, Loïc, Marolleau, Marine
openaire   +2 more sources

Harnessing Fluorine Chemistry: Strategies for Per‐ and Polyfluoroalkyl Substances Removal and Enrichment

ChemPlusChem, Volume 90, Issue 7, July 2025.
The high fluorine content in per‐ and polyfluoroalkyl substances (PFAS) gives them unique properties, leading to their widespread use in industrial applications and consumer products, but also creating environmental challenges . A thorough understanding of PFAS fluorine chemistry is crucial for developing effective concentration technologies ...
Anne Lobitz, Alex Steuber, Shang Jia, Lei Guo   +3 more
wiley   +1 more source

A stochastic multi-host model for West Nile virus transmission

Journal of Biological Dynamics
When initially introduced into a susceptible population, a disease may die out or result in a major outbreak. We present a Continuous-Time Markov Chain model for enzootic WNV transmission between two avian host species and a single vector, and use ...
Emily B. Horton, Suzanne L. Robertson
doaj   +1 more source

A note on the multitype measure branching process [PDF]

Advances in Applied Probability, 1992
The existence of a class of multitype measure branching processes is deduced from a single-type model introduced by Li [8], which extends the work of Gorostiza and Lopez-Mimbela [5] and shows that the study of a multitype process can sometimes be reduced to that of a single-type one.
openaire   +1 more source

Detecting Changes in Space‐Varying Parameters of Local Poisson Point Processes

Environmetrics, Volume 36, Issue 5, July 2025.
ABSTRACT Recent advances in local models for point processes have highlighted the need for flexible methodologies to account for the spatial heterogeneity of external covariates influencing process intensity. In this work, we introduce tessellated spatial regression, a novel framework that extends segmented regression models to spatial point processes,
Nicoletta D'Angelo
wiley   +1 more source

Multitype Λ-Coalescents [PDF]

, 2023
Consider a multitype coalescent process in which each block has a colour in {1, . . ., d}. Individual blocks may change colour, and some number of blocks of various colours may merge to form a new block of some colour.
Rogers, Tim, Johnston, Samuel G.G., Kyprianou, Andreas   +2 more
core   +1 more source

Automated seismic event detection considering faulty data interference using deep learning and Bayesian fusion

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 14, Page 1910-1931, 3 June 2025.
Abstract Structural health monitoring (SHM) aims to assess civil infrastructures' performance and ensure safety. Automated detection of in situ events of interest, such as earthquakes, from extensive continuous monitoring data, is important to ensure the timeliness of subsequent data analysis.
Zhiyi Tang, Jiaxing Guo, Yinhao Wang, Wei Xu, Yuequan Bao, Jingran He, Youqi Zhang   +6 more
wiley   +1 more source

The simple harmonic urn

, 2011
We study a generalized Polya urn model with two types of ball. If the drawn ball is red it is replaced together with a black ball, but if the drawn ball is black it is replaced and a red ball is thrown out of the urn.
Crane, E., Georgiou, Nicholas, Waters, Robert J., Stanislav Volkov, Crane, ET, Volkov, S, Wade, Andrew R., Georgiou, N, Andrew R. Wade, Volkov, Stanislav,, Waters, R.J., Nicholas Georgiou, Robert J. Waters, Wade, Andrew, Crane, Edward, Georgiou, N., Edward Crane, Waters, RJ, Georgiou, Nicolas, Wade, AR, Volkov, Stanislav, Lund University.   +21 more
core   +1 more source

Multitype branching processes in random environments [PDF]

Journal of Applied Probability, 1971
Consider the classical Galton-Watson process described by Harris ((1963), Chapter 1). Recently this model has been generalized in Smith (1968), Smith and Wilkinson (1969), and Wilkinson (1967). They removed the restrictive assumption that the particles always divide in accordance with the same p.g.f.
openaire   +2 more sources

Using a Plant Hydrodynamic Model, FETCH4, to Supplement Measurements and Characterize Hydraulic Traits in a Mixed Temperate Forest

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 4, April 2025.
Abstract Species‐specific hydraulic traits play an important role in ecosystem response to water stress; however, representation of biodiverse forest canopies remains a challenge in land surface models. We introduce FETCH4, a multispecies, canopy‐level, hydrodynamic model, which builds upon previous versions of the finite‐difference ecosystem‐scale ...
Justine E. C. Missik, Gil Bohrer, Madeline E. Scyphers, Ashley M. Matheny, Ana Maria Restrepo Acevedo, Marcela Silva, Golnazalsadat Mirfenderesgi, Yair Mau   +7 more
wiley   +1 more source