Zobrazeno 1 - 10
of 235
pro vyhledávání: '"Barczy, Mátyás"'
Autor:
Barczy, Matyas, Páles, Zsolt
We investigate the monotone representation and measurability of generalized $\psi$-estimators introduced by the authors in 2022. Our first main result, applying the unique existence of a generalized $\psi$-estimator, allows us to construct this estim
Externí odkaz:
http://arxiv.org/abs/2412.02783
We present a method for incorporating a stochastic point of view into physics exercises of mathematics education. The core of our method is the randomization of some inputs, the system model used does not differ from what we would use in the determin
Externí odkaz:
http://arxiv.org/abs/2410.04076
Autor:
Barczy, Matyas, Páles, Zsolt
We give axiomatic characterisations of generalized $\psi$-estimators and (usual) $\psi$-estimators (also called $Z$-estimators), respectively. The key properties of estimators that come into play in the characterisation theorems are the symmetry, the
Externí odkaz:
http://arxiv.org/abs/2409.16240
Autor:
Barczy, Matyas, Kern, Peter
We study H\"older continuity, $p^\mathrm{th}$-variation function and Riesz variation of Weierstrass-type functions along a sequence of $b$-adic partitions, where $b>1$ is an integer. By a Weierstrass-type function, we mean that in the definition of t
Externí odkaz:
http://arxiv.org/abs/2407.09229
Autor:
Barczy, Matyas, Bezdány, Dániel
We study the asymptotic behaviour of a critical decomposable 3-type Galton-Watson process with immigration when its offspring mean matrix is triangular with diagonal entries 1. It is proved that, under second or fourth order moment assumptions on the
Externí odkaz:
http://arxiv.org/abs/2406.09852
Autor:
Barczy, Matyas, Páles, Zsolt
We prove that the values of a generalized $\psi$-estimator (introduced by Barczy and P\'ales in 2022) on samples of arbitrary length but having only two different observations uniquely determine the values of the estimator on any sample of arbitrary
Externí odkaz:
http://arxiv.org/abs/2402.10817
Autor:
Barczy, Matyas, Páles, Zsolt
We establish several properties of (weighted) generalized $\psi$-estimators introduced by Barczy and P\'ales in 2022: mean-type, monotonicity and sensitivity properties, bisymmetry-type inequality and some asymptotic and continuity properties as well
Externí odkaz:
http://arxiv.org/abs/2401.16127
Autor:
Barczy, Matyas, Páles, Zsolt
We solve the comparison problem for generalized $\psi$-estimators introduced in Barczy and P\'ales (2022). Namely, we derive several necessary and sufficient conditions under which a generalized $\psi$-estimator less than or equal to another $\psi$-e
Externí odkaz:
http://arxiv.org/abs/2309.04773
Autor:
Barczy, Matyas, Palau, Sandra
Publikováno v:
Electronic Journal of Probability 29, (2024), 1-39.
We study the distributional properties of jumps of multi-type continuous state and continuous time branching processes with immigration (multi-type CBI processes). We derive an expression for the distribution function of the first jump time of a mult
Externí odkaz:
http://arxiv.org/abs/2308.05639
Publikováno v:
Revista de la Real Academia de Ciencias Exactas, F\'isicas y Naturales. Serie A. Matem\'aticas 118, (2024), Article Number 101, 36 pages
Branching processes form an important family of stochastic processes that have been successfully applied in many fields. In this paper, we focus our attention on controlled multi-type branching processes (CMBPs). A Feller-type diffusion approximation
Externí odkaz:
http://arxiv.org/abs/2304.06958