Zobrazeno 1 - 10
of 394
pro vyhledávání: '"Páles Zsolt"'
Autor:
Páles Zsolt, Pasteczka Paweł
Publikováno v:
Annales Mathematicae Silesianae, Vol 38, Iss 1, Pp 78-92 (2024)
In this paper, we consider homogeneous quasideviation means generated by real functions (defined on (0, ∞)) which are concave around the point 1 and possess certain upper estimates near 0 and ∞. It turns out that their concave envelopes can be co
Externí odkaz:
https://doaj.org/article/51db01d1afa2433d9398d191d0f837b8
Autor:
Páles Zsolt, Zakaria Amr
Publikováno v:
Annales Mathematicae Silesianae, Vol 36, Iss 2, Pp 206-214 (2022)
In this note, we present an extension of the celebrated Abel– Liouville identity in terms of noncommutative complete Bell polynomials for generalized Wronskians. We also characterize the range equivalence of n-dimensional vector-valued functions in
Externí odkaz:
https://doaj.org/article/8d6192a7f38141209a4e3987c1c15470
On the equality of generalized Bajraktarevi\'c means under first-order differentiability assumptions
Autor:
Páles, Zsolt, Zakaria, Amr
In this paper we consider the equality problem of generalized Bajraktarevi\'c means, i.e., we are going to solve the functional equation \begin{equation}\label{E0}\tag{*} f^{(-1)}\bigg(\frac{p_1(x_1)f(x_1)+\dots+p_n(x_n)f(x_n)}{p_1(x_1)+\dots+p_n(x_n
Externí odkaz:
http://arxiv.org/abs/2410.16074
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:
Grünwald, Richárd, Páles, Zsolt
In this paper, we consider the global comparison problem of Gini means with fixed number of variables on a subinterval $I$ of $\mathbb{R}_+$, i.e., the following inequality \begin{align}\tag{$\star$}\label{ggcabs} G_{r,s}^{[n]}(x_1,\dots,x_n) \leq G_
Externí odkaz:
http://arxiv.org/abs/2408.07658
Autor:
Páles Zsolt
Publikováno v:
Annales Mathematicae Silesianae, Vol 34, Iss 1, Pp 142-150 (2020)
The main goal of this paper is to give a completely elementary proof for the decomposition theorem of Wright convex functions which was discovered by C. T. Ng in 1987. In the proof, we do not use transfinite tools, i.e., variants of Rodé’s theorem
Externí odkaz:
https://doaj.org/article/610cb4bb5f294edba7b57d9ee65df98d
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:
Páles, Zsolt, Shihab, Mahmood Kamil
The main goal of this paper is to show that if a real valued function defined on a groupoid satisfies a certain Levi--Civita-type functional equation, then it also fulfills a Cauchy--Schwarz-type functional inequality. In particular, if the groupoid
Externí odkaz:
http://arxiv.org/abs/2402.08587
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