Results 31 to 40 of about 1,776 (211)

2-Strict Convexity and Continuity of Set-Valued Metric Generalized Inverse in Banach Spaces

open access: yesAbstract and Applied Analysis, 2014
Authors investigate the metric generalized inverses of linear operators in Banach spaces. Authors prove by the methods of geometry of Banach spaces that, if X is approximately compact and X is 2-strictly convex, then metric generalized inverses of ...
Shaoqiang Shang, Yunan Cui
doaj   +1 more source

Separating sets by upper semicontinuous and Darboux upper semicontinuous functions

open access: yesTopology and its Applications, 2013
Abstract In this paper we characterize the pairs ( A 0 , A 1 ) and ( A − , A + ) of disjoint sets which can be separated by an upper semicontinuous function and by a Darboux upper semicontinuous function.
openaire   +1 more source

About extension of upper semicontinuous multi-valued maps and applications [PDF]

open access: yes, 2009
International audienceWe formulate a multi-valued version of the Tietze-Urysohn extension theorem. Precisely, we prove that any upper semicontinuous multi-valued map with nonempty closed convex values defined on a closed subset (resp.
Askoura, Youcef
core   +4 more sources

Kinetic Modeling of Phosphate‐Based Enzyme Cascade for the Production of Fructose From Starch

open access: yesChemFoodChem, EarlyView.
A mechanistic kinetic model is developed for a phosphate‐based cascade converting starch to fructose. Mechanistic information was used to formulate rate expression of enzymes, and sensitivity analysis was performed to identify key kinetic parameters for optimization.
Rawia Marafi   +5 more
wiley   +1 more source

Viable solutions to nonautonomous inclusions without convexity [PDF]

open access: yes, 2003
The existence of viable solutions is proven for nonautonomous upper semicontinuous differential inclusions whose right-hand side is contained in the Clarke subdifferential of a locally Lipschitz continuous ...
Tallos, Péter, Kánnai, Zoltán
core  

Copula‐based joint modelling of emergency department visits with time‐varying dependence

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Jointly modelling multiple correlated count time series is essential in health services research, where outcomes like emergency visits for mental health and substance use often evolve together. Ignoring these dependencies can obscure meaningful trends and limit the effectiveness of policy evaluation.
Guanjie Lyu, Cindy Feng, Lihui Liu
wiley   +1 more source

Transitions between 4-intersection values of planar regions

open access: yesApplied General Topology, 2017
If A(t) and B(t) are subsets of the Euclidean plane which are continuously morphing, we investigate the question of whether they may morph directly from being disjoint to overlapping so that the boundary and interior of A(t) both intersect the boundary ...
Kathleen Bell, Tom Richmond
doaj   +1 more source

Amenability Constants for Unconditional Sums of Banach Algebras

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT We study Johnson amenability for unconditional direct sums of Banach algebras. Given a family (Ai)i∈I$(A_i)_{i\in I}$ of Banach algebras and a Banach sequence lattice E$E$ on I$I$, the E$E$‐sum ⨁i∈IAiE${\bigl (\bigoplus _{i\in I} A_i\bigr)}_{\!E}$ carries a natural Banach algebra structure via coordinatewise multiplication.
Tomasz Kania, Jerzy Ka̧kol
wiley   +1 more source

Double-dual types over the Banach space C(K)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
Let K be a compact Hausdorff space and C(K) the Banach space of all real-valued continuous functions on K, with the sup-norm. Types over C(K) (in the sense of Krivine and Maurey) can be uniquely represented by pairs (ℓ,u) of bounded real-valued functions
Markus Pomper
doaj   +1 more source

Exact Robust Filtering and Differentiation Based on Sliding Modes and Homogeneity

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This article addresses the problem of online estimation of the derivatives of a signal corrupted by measurement noise. The measured signal is modeled as the sum of a smooth nominal component and a uniformly bounded noise term. A key objective is to attenuate the effect of high‐frequency noise.
Jaime A. Moreno, Arie Levant
wiley   +1 more source

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