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Characteristic Functions Assignment by Adding Perturbation [PDF]

open access: yesMathematics Interdisciplinary Research, 2023
‎This paper presents a method for characteristic function assignment on rational functions by adding perturbation in systems with irrational characteristic functions‎.
Aref Shahmansoorian, Peyman Ahmadi
doaj   +1 more source

Normal approximation for sum of random number of summands

open access: yesLietuvos Matematikos Rinkinys, 2021
Normal aproximationof sum Zt =ΣNti=1Xi of i.i.d. random variables (r.v.) Xi , i = 1, 2, . . . with mean EXi = μ and variance DXi = σ2 > 0 is analyzed taking into consideration large deviations.
Leonas Saulis, Dovilė Deltuvienė
doaj   +1 more source

On the Vector Representation of Characteristic Functions

open access: yesStats, 2023
Based upon the vector representation of complex numbers and the vector exponential function, we introduce the vector representation of characteristic functions and consider some of its elementary properties such as its polar representation and a vector ...
Wolf-Dieter Richter
doaj   +1 more source

Factorizations of characteristic functions [PDF]

open access: yesJournal of Operator Theory, 2017
Let $A = (A_1, \ldots, A_n)$ and $B = (B_1, \ldots, B_n)$ be row contractions on $\mathcal{H}_1$ and $\mathcal{H}_2$, respectively, and $X$ be a row operator from $\oplus_{i=1}^n \mathcal{H}_2$ to $\mathcal{H}_1$. Let $D_{A^*} = (I - A A^*)^{\frac{1}{2}}$ and $D_{B} = (I - B^* B)^{\frac{1}{2}}$ and $Θ_T$ be the characteristic function of $T = \begin ...
Haria, Kalpesh J.   +2 more
openaire   +2 more sources

Mixtures and Characteristic Functions [PDF]

open access: yesProceedings of the National Academy of Sciences, 1970
Let g ( u | c , y ) = exp { y Σ c k ( u k - 1)} with y > 0, Σ
openaire   +3 more sources

On the Effect of the Absorption Coefficient in a Differential Game of Pollution Control

open access: yesMathematics, 2020
We consider various approaches for a characteristic function construction on the example of an n players differential game of pollution control with a prescribed duration.
Ekaterina Marova   +3 more
doaj   +1 more source

Influence of Ultrasonic Frequency on Wax Removal of Oil Well Casing

open access: yesShiyou jixie, 2022
Ultrasonic wax removal process has been widely used in China for its good engineering adaptability,high intelligence and low environmental pollution.In order to identify the influence of ultrasonic frequency on wax removal of oil well casing,based on the
Zhang Ziheng   +4 more
doaj  

A characterization of the normal distribution [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2014
It is shown that the normal distribution with mean zero is characterized by the property that the product of its characteristic function and moment generating function is equal to 1.
Hans Volkmer
doaj   +1 more source

Value distribution and the Lemma of the logarithmic derivative on polydiscs

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
Value distribution is developed on polydiscs with the special emphasis that the value distribution function depend on a vector variable. A Lemma of the logarithmic derivative for meromorphic functions on polydiscs is derived. Here the Bergman boundary of
Wilhelm Stoll
doaj   +1 more source

Cooperation or Localization in European Capacity Markets? A Coalitional Game over Graph Approach

open access: yesEnergies, 2018
Capacity markets, as a means to address the capacity adequacy issue, are constantly becoming an important part of the European internal electricity market.
Giorgos Stamtsis, Haris Doukas
doaj   +1 more source

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