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Asymptotic equivalence of quantum stochastic models [PDF]

open access: yesJournal of Mathematical Physics, 2019
We introduce the notion of perturbations of quantum stochastic models using the series product and establish the asymptotic convergence of sequences of quantum stochastic models under the assumption that they are related via a right series product perturbation.
Luc Bouten, John E. Gough
openaire   +2 more sources

Asymptotic Equivalence for Nonparametric Regression

open access: yes, 2002
We consider a nonparametric model $\mathcal{E}^{n},$ generated by independent observations $X_{i},$ $i=1,...,n,$ with densities $p(x,θ_{i}),$ $i=1,...,n,$ the parameters of which $θ_{i}=f(i/n)\in Θ$ are driven by the values of an unknown function $f:[0,1]\rightarrow Θ$ in a smoothness class.
Grama, Ion, Nussbaum, Michael
openaire   +4 more sources

Asymptotic -Algebras from -Actions on Higher Rank Graphs

open access: yesAbstract and Applied Analysis, 2013
For a dynamical system arising from -action on a higher rank graph with finite vertex set, we show that the semidirect product of the asymptotic equivalence relation groupoid is essentially principal if and only if the -graph satisfies the aperiodic ...
Inhyeop Yi
doaj   +1 more source

ASYMPTOTIC COARSE LIPSCHITZ EQUIVALENCE

open access: yes, 2023
We introduce the notion of asymptotic coarse Lipschitz equivalence of metric spaces. We show that it is strictly weaker than coarse Lipschitz equivalence. We study its impact on the asymptotic dimension of metric spaces.
Lancien, Gilles   +1 more
core  

Asymptotic statistical equivalence for scalar ergodic diffusions [PDF]

open access: yes, 2004
For scalar diffusion models with unknown drift function asymptotic equivalence in the sense of Le Cam's deficiency between statistical experiments is considered for long-time asymptotics.
Reiß, Markus   +3 more
core   +1 more source

Background risk model in presence of heavy tails under dependence

open access: yesNonlinear Analysis
In this paper, we examine two problems on applied probability, which are directly connected with the dependence in presence of heavy tails. The first problem is related to max-sum equivalence of the randomly weighted sums in bivariate setup. Introducing
Dimitrios G. Konstantinides   +1 more
doaj   +1 more source

Contractions of Product Density Operators of Systems of Identical Fermions and Bosons

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
Recurrence and explicit formulae for contractions (partial traces) of antisymmetric and symmetric products of identical trace class operators are derived. Contractions of product density operators of systems of identical fermions and bosons are proved to
Wiktor Radzki
doaj   +1 more source

Control of parallel non-observable queues: Asymptotic equivalence and optimality of periodic policies

open access: yesStochastic Systems, 2015
We consider a queueing system composed of a dispatcher that routes jobs to a set of non-observable queues working in parallel. In this setting, the fundamental problem is which policy should the dispatcher implement to minimize the stationary mean ...
Jonatha Anselmi   +2 more
doaj   +1 more source

Asymptotically unitary equivalence and asymptotically inner automorphisms [PDF]

open access: yesAmerican Journal of Mathematics, 2009
Let $C$ be a unital AH-algebra and let $A$ be a unital separable simple $C^*$-algebra with tracial rank zero. Suppose that $\phi_1, \phi_2\colon \ C\to A$ are two unital monomorphisms. We show that there is a continuous path of unitaries $\{u_t\colon \ t\in [0, \infty)\}$ of $A$ such that $$ \lim_{t\to\infty}u_t^*\phi_1(a)u_t=\phi_2(a)\quad\hbox{\rm ...
openaire   +2 more sources

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

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