تصفح Mathematics, Statistics & Physics حسب العنوان
السجلات المعروضة 454 -- 473 من 689
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On certain estimates for marcinkiewicz integrals and extrapolation
( Universidad de Barcelona , 2009 , Article)We obtain Lp estimates for parametric Marcinkiewicz integrals associated to polynomial mappings and with rough kernels on the unit sphere as well as on the radial direction. These estimates will allow us to use an extrapolation ... -
On certain estimates of rough oscillatory singular integrals
(2011 , Article)We obtain appropriate sharp estimates for rough oscillatory integrals with polynomial phase. Our results represent significant improvements as well as natural extensions of what was known previously. -
On certain rough integral operators and extrapolation
( Victoria university , 2009 , Article)In this paper, we obtain sharp Lp estimates of two classes of maximal operators related to rough singular integrals and Marcinkiewicz integrals. These estimates will be used to obtain similar estimates for the related ... -
On certain rough maximal operators and singular integrals
(2007 , Article)We study the L p mapping properties of a class of singular integral operators T p,Ω,h related to polynomial mappings. We prove that this class of singular operators and some of its related maximal operators are bounded on ... -
On computing joint invariants of vector fields
( Elsevier , 2015 , Article)A constructive version of the Frobenius integrability theorem-that can be programmed effectively-is given. This is used in computing invariants of groups of low ranks and recover examples from a recent paper of Boyko etal. (2009). -
On convergence of an implicit iterative algorithm for non self asymptotically non expansive mappings
( Hacettepe University , 2014 , Article)In this paper, we study an implicit iterative algorithm for two nite families of nonself asymptotically nonexpansive mappings. We prove some weak and strong convergence theorems for this iterative algo- rithm. Our results ... -
On designing a sequential based EWMA structure for efficient process monitoring
( Taylor and Francis Ltd. , 2020 , Article)Control chart is a popular technique that is widely used in statistical process control to identify any possible deviations from a stable state of a process. Shewhart charts are famous for identifying larger shifts, while ... -
On designing an assorted control charting approach to monitor process dispersion: an application to hard-bake process
( Taylor and Francis Ltd. , 2020 , Article)The monitoring of process variability is an important feature to get optimal output from a process. Control charts are vital tools used for efficient process monitoring. The commonly used types of charts include Shewhart, ... -
On designing efficient memory-type charts using multiple auxiliary-information
( Taylor and Francis Ltd. , 2023 , Article)This article intends to investigate new progressive mean (MEP) charts using a single auxiliary characteristic (AMEP) and two auxiliary characteristics (TAMEP) to trace small shifts in the process mean effectively. The ... -
On efficient estimation strategies in monitoring of linear profiles
( Springer London , 2018 , Article)A fundamental strategy to diminish variations in manufacturing process urged the practitioners to characterize the quality of a process by a relationship between the response variable and one or more explanatory variables ... -
On existence and uniqueness of best proximity points for proximal β-quasi contractive mappings on metric spaces
( Forum-Editrice Universitaria Udinese SRL , 2021 , Article)This paper focus on the study of the generalization of the best proximity point theorems for non-self contractions. In fact we propose two new theorems on the existence and the uniqueness of best proximity points for ... -
On fixed points of Berinde's contractive mappings in cone metric spaces
( North University of Baia Mare , 2010 , Article)In this paper we establish some common fixed point theorems for two self-mappings satisfying a generalized contractive condition. This result generalizes well known comparable results in the literature. As an application, ... -
On generalized Littlewood–Paley functions
( Springer-Verlag Italia s.r.l. , 2018 , Article)We study the Lp boundedness of certain classes of generalized Littlewood–Paley functions S(f). We obtain Lp estimates of S(f) with sharp range of p and under optimal conditions on ?. By using these estimates along with an ... -
On goodness-of-fit testing for Burr type X distribution under progressively type-II censoring
( Springer , 2022 , Article)In this article, we propose two goodness-of-fit test statistics for the Burr Type X distribution when the available data are subject to progressively Type-II censoring. The proposed test statistics are based on the sample ... -
On improved dispersion control charts under ranked set schemes for normal and non-normal processes
( John Wiley and Sons Ltd , 2019 , Article)In manufacturing industries, control charts are the promising statistical tools used for an efficient monitoring of processes. These charts enhance the product quality by timely signaling for special variations at any stage ... -
On improved monitoring of linear profiles under modified successive sampling
( John Wiley and Sons Ltd , 2019 , Article)Control charts are often used for the monitoring of quality characteristics of interest. There may exist some other characteristics that are associated with the main quality characteristic. A model that quantifies the ... -
On Indefinite Quadratic Optimization over the Intersection of Balls and Linear Constraints
( Springer , 2022 , Article)In this paper, we study the minimization of an indefinite quadratic function over theintersection of balls and linear inequality constraints (QOBL). Using the hyperplanesinduced by the intersection of each pair of balls, ... -
On Mixed Equilibrium Problems in Hadamard Spaces
( Hindawi Limited , 2019 , Article)The main purpose of this paper is to study mixed equilibrium problems in Hadamard spaces. First, we establish the existence of solution of the mixed equilibrium problem and the unique existence of the resolvent operator ... -
On Model Selection for Autocorrelated Processes in Statistical Process Control
( John Wiley and Sons Ltd , 2017 , Article)Using traditional control charts to monitor autocorrelated processes is not beneficial, because it will lead us to misleading detections in the processes. One of the methods used to deal with the control charts for ... -
On multistage ranked set sampling for distribution and median estimation
( Elsevier B.V. , 2007 , Article)A variation of ranked set sampling (RSS), multistage RSS (MSRSS), is investigated for the estimation of the distribution function and some of its quantiles, in particular the median. It is shown that this method is ...
