Results 21 to 30 of about 68,838 (163)

Some intriguing properties of Tukey's half-space depth [PDF]

, 2011
For multivariate data, Tukey's half-space depth is one of the most popular depth functions available in the literature. It is conceptually simple and satisfies several desirable properties of depth functions.
Chaudhuri, Probal, Dutta, Subhajit, Ghosh, Anil K.   +2 more
core   +1 more source

Covering groups and their applications: A survey

Учёные записки Казанского университета: Серия Физико-математические науки, 2022
This article is a survey of covering group theorems and their applications. For a given covering mapping from the topological space onto a topological group, it is natural to pose the following question on the lifting of the group structure from the base
R.N. Gumerov
doaj   +1 more source

A New Iteration Process for Approximation of Common Fixed Points for Finite Families of Total Asymptotically Nonexpansive Mappings

International Journal of Mathematics and Mathematical Sciences, 2009
Let E be a real Banach space, and K a closed convex nonempty subset of E. Let T1,T2,…,Tm:K→K be m total asymptotically nonexpansive mappings. A simple iterative sequence {xn}n≥1 is constructed in E and necessary and sufficient conditions for this ...
C. E. Chidume, E. U. Ofoedu
doaj   +1 more source

Basic Contractions of Suzuki-Type on Quasi-Metric Spaces and Fixed Point Results

Mathematics, 2022
This paper deals with the question of achieving a suitable extension of the notion of Suzuki-type contraction to the framework of quasi-metric spaces, which allows us to obtain reasonable fixed point theorems in the quasi-metric context.
Salvador Romaguera
doaj   +1 more source

A simple inequality for the von Neumann–Jordan and James constants of a Banach space

Journal of Mathematical Analysis and Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Takahashi, Yasuji, Kato, Mikio
openaire   +2 more sources

On n-normed spaces

International Journal of Mathematics and Mathematical Sciences, 2001
Given an n-normed space with n≥2, we offer a simple way to derive an (n−1)-norm from the n-norm and realize that any n-normed space is an (n−1)-normed space. We also show that, in certain cases, the (n−1)-norm can be derived from the n-norm in such a way
Hendra Gunawan, M. Mashadi
doaj   +1 more source

Numerical investigation for the nonlinear model of hepatitis-B virus with the existence of optimal solution

AIMS Mathematics, 2021
In the recent article, a reaction-advection-diffusion model of the hepatitis-B virus (HBV) is studied. Existence and uniqueness of the optimal solution for the proposed model in function spaces is analyzed.
Naveed Shahid , Muhammad Aziz-ur Rehman , Nauman Ahmed, Dumitru Baleanu, Muhammad Sajid Iqbal, Muhammad Rafiq   +5 more
doaj   +1 more source

On the Banach Manifold of Simple Domains in the Euclidean Space and Applications to Free Boundary Problems [PDF]

Acta Applicandae Mathematicae, 2019
This is a revised version of a submission with the same title to the journal "Acta Applicandae Mathematicae" on November 1, 2018.
openaire   +2 more sources

Multivariate Fractal Functions in Some Complete Function Spaces and Fractional Integral of Continuous Fractal Functions

Fractal and Fractional, 2021
There has been a considerable evolution of the theory of fractal interpolation function (FIF) over the last three decades. Recently, we introduced a multivariate analogue of a special class of FIFs, which is referred to as α-fractal functions, from the ...
Kshitij Kumar Pandey, Puthan Veedu Viswanathan   +1 more
doaj   +1 more source

Some properties of pre-quasi operator ideal of type generalized Cesáro sequence space defined by weighted means

Open Mathematics, 2019
Let E be a generalized Cesáro sequence space defined by weighted means and by using s-numbers of operators from a Banach space X into a Banach space Y.
Bakery Awad A., Mohammed Mustafa M.
doaj   +1 more source