Results 141 to 150 of about 114,898,652 (277)

Random coverage from within with variable radii, and Johnson-Mehl cover times. [PDF]

Extremes (Boston)
Penrose MD, Higgs F.
europepmc   +1 more source

Novel Bernstein‐Kantorovich Type Operators

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we introduce a novel class of Bernstein‐Kantorovich operators, denoted as Kβn,θ$$ {K}_{\beta}^{n,\theta } $$, parameterized by 0<β<1$$ 0<\beta <1 $$ and θ>0$$ \theta >0 $$. We first derive a recurrence formula that facilitates the computation of moments and central moments and provide explicit expressions for Kβn,θ(tm;x)$$ {K}_{\
Pembe Sabancigil, Nazim I. Mahmudov
wiley   +1 more source

Limit theorems for bipower variation in financial econometrics [PDF]

In this paper we provide an asymptotic analysis of generalised bipower measures of the variation of price processes in financial economics. These measures encompass the usual quadratic variation, power variation and bipower variations which have been ...
Neil Shephard, Sven Erik Graversen, Ole E. Barndorff-Nielsen, Jean Jacod   +3 more
core  

Weak convergence of stochastic integrals on Skorokhod space in Skorokhod's J 1 and M 1 topologies. [PDF]

Probab Theory Relat Fields
Søjmark A, Wunderlich F.
europepmc   +1 more source

Limit theorems of probability theory in dynamical systems

, 2015
Cette thèse est consacrée aux théorèmes limites pour les suites et les champs aléatoires strictement stationnaires. Nous étudions essentiellement le théorème limite central et sa version fonctionnelle, appelée principe d'invariance. Dans un premier temps, nous montrons à l'aide d'un contre-exemple que pour les processus strictement stationnaires $\beta$
openaire   +1 more source

On the Approximation Properties of Modified Bernstein–Kantorovich Operators and Their Subfamilies

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Motivated by the construction of Bernstein–Kantorovich operators preserving affine functions, we introduce a Bernstein–Kantorovich type operators 𝒯n,m together with its subfamilies 𝒯∗n,m, 𝒯∗n,2m−1 and 𝒯∗n,2m. We investigate and compare their approximation properties with the other Bernstein–Kantorovich operators. Our analysis demonstrates that,
Hüseyin Aktuğlu, Mustafa Kara
wiley   +1 more source

Trigonometric words ranking model for spam message classification

IET Networks, EarlyView., 2022
Abstract The significant increase in the volume of fake (spam) messages has led to an urgent need to develop and implement a robust anti‐spam method. Several of the current anti‐spam systems depend mainly on the word order of the message in determining the spam message, which results in the system's inability to predict the correct type of message when
Suha Mohammed Hadi, Ali Hakem Alsaeedi, Dhiah Al‐Shammary, Zaid Abdi Alkareem Alyasseri, Mazin Abed Mohammed, Karrar Hameed Abdulkareem, Riyadh Rahef Nuiaa, Mustafa Musa Jaber   +7 more
wiley   +1 more source

Block Bootstrap Consistency Under Weak Assumptions [PDF]

This paper weakens the size and moment conditions needed for typical block bootstrap methods (i.e. the moving blocks, circular blocks, and stationary bootstraps) to be valid for the sample mean of Near-Epoch-Dependent functions of mixing processes; they ...
Calhoun, Gray
core  

One-shot distillation with constant overhead using catalysts. [PDF]

Nat Commun
Fang K, Liu ZW.
europepmc   +1 more source

On the Global Asymptotic Stability of an Infection‐Age‐Structured Competitive Model

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We investigate an infection‐age‐structured competitive epidemiological model involving multiple strains. While classical results establish competitive exclusion when a unique maximal basic reproduction number exists, we provide here a complete characterization of the asymptotic behavior for an arbitrary number of populations without assuming ...
S. Girel, Q. Richard
wiley   +1 more source