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Convergence in $L^p$ and its exponential rate for a branching process in a random environment
branching process random environment
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2010/11/9
We consider a supercritical branching process $(Z_n)$ in a random environment $\xi$. Let $W$ be the limit of the normalized population size $W_n=Z_n/E[Z_n|\xi]$. We first show a necessary and sufficie...
Coherent control of the cooperative branching ratio for nuclear x-ray pumping
Coherent control cooperative branching ratio nuclear x-ray pumping
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2010/11/11
Coherent control of nuclear pumping in a three level system driven by x-ray light is investigated. In single nuclei, the pumping performance is determined by the branching ratio of the excited state p...
Stochastic Continuous Time Neurite Branching Models with Tree and Segment Dependent Rates
Stochastic Continuous Time Neurite Branching Models Tree Segment Dependent Rates
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2010/11/15
In this paper we introduce a continuous time stochastic neurite branching model closely related to the discrete time stochastic BES-model. The discrete time BES-model is underlying current attempts t...
Traveling plateaus for a hyperbolic Keller-Segel system with attraction and repulsion: existence and branching instabilities
Keller-Segel system hyperbolic system traveling waves branching instability
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2010/12/16
How can repulsive and attractive forces, acting on a conservative system, create stable traveling patterns or branching instabilities? We have proposed to study this question in the framework of the h...
Statistical universal branching ratios for cosmic ray dissociation, photodissociation, and dissociative recombination of the C(n=2-10), C(n=2-4)H and C3H2 neutral and cationic species
Galaxy Astrophysics (astro-ph.GA)
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2010/12/23
Fragmentation branching ratios of electronically excited molecular species are of first importance for the modeling of gas phase interstellar chemistry. Despite experimental and theoretical efforts th...
Local Bifurcation-Branching Analysis of Global and "Blow-up" Patterns for a Fourth-Order Thin Film Equation
Thin film equation local bifurcation analysis source-type and blow-up similarity solutions
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2010/12/14
Countable families of global-in-time and blow-up similarity sign-changing patterns of the Cauchy problem for the fourth-order thin film equation (TFE–4) ut = −∇ · (|u|n∇u) in RN × R...
On the Stability and the Approximation of Branching Distribution Flows, with Applications to Nonlinear Multiple Target Filtering
Measure-valued equations nonlinear multi-target filtering Bernoulli filter
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2010/12/3
We analyse the exponential stability properties of a class of measure-valued equations arising in nonlinear multi-target filtering problems. We also prove the uniform convergence properties w.r.t. the...
Survival of near-critical branching Brownian motion
ival near-critical branching Brownian motion
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2010/11/29
Consider a system of particles performing branching Brownian motion with negative
drift μ = √2 − " and killed upon hitting zero. Initially there is one particle at x > 0.
Kesten [12] showed th...
$L\log L$ condition for supercritical branching Hunt processes
Hunt processes branching Hunt processes Kesten-Stigum Theorem martingales
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2010/12/10
In this paper we use the spine decomposition and martingale change of measure to establish a Kesten-Stigum Llog L theorem for branching Hunt processes. This result is a generalization of the results i...
Smaller population size at the MRCA time for stationary branching processes
Branching process most recent common ancestor bottleneck genealogy
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2010/11/30
We present an elementary model of random size varying population given by a stationary continuous state branching process. For this model we compute the joint distribution
of: the time to the most re...
Branching Patterns and Stepped Leaders in an Electric-Circuit Model for Creeping Discharge
Branching Patterns Stepped Leaders Electric-Circuit Model
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2010/4/21
We construct a two-dimensional electric circuit model for creeping discharge. Two types of discharge, surface corona and surface leader, are modeled by a two-step function of conductance. Branched pat...
Predictability of extreme events in a branching diffusion model
extreme events branching diffusion model
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2010/4/6
We propose a framework for studying predictability of extreme events in complex systems. Major conceptual elements -- hierarchical structure, spatial dynamics, and external driving -- are combined in ...
Non-leptonic D0, D+, and Ds Branching Fractions
Non-leptonic D0 D+ Ds Branching Fractions
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2010/3/15
Non-leptonic charm decays provide insights into both electro-weak and strong dynamics. This includes the study of long-distance hadronic effects, the approximate symmetries of strong interactions, and...
Branching fraction measurements of \chi_{c0} and \chi_{c2} to \pi^0\pi^0 and \eta\eta
Branching fraction \chi_{c2} \eta\eta
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2010/3/15
Using a sample of 1.06 \times 10^8 \psi^{\prime} decays collected by the BESIII detector, \chi_{c0} and \chi_{c2} decays into \pi^0\pi^0 and \eta\eta are studied. The branching fraction results are Br...
αdecay Branching Ratios to Rotational Band of Heavy Even-even and OddA Nuclei
Heavy Even-even Rotational Band
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2009/10/29
By using a simple barrier penetration approach, we predict the αdecay branching ratios to members of groundstate rotational band of heavy eveneven No isotopes. We also extend our approach to calcul...