Results 71 to 80 of about 601 (93)

Chebyshev centers that are not farthest points

, 2016
In this paper we address the question whether in a given Banach space, a Chebyshev center of a nonempty bounded subset can be a farthest point of the set. Our exploration reveals that the answer depends on the convexity properties of the Banach space. We
Kadets, Vladimir, Paul, Kallol, Ray, Anubhab, Sain, Debmalya   +3 more
core  

Variations of generalized weak contractions in partially ordered b-metric space. [PDF]

BMC Res Notes, 2022
Rao NS, Kalyani K.
europepmc   +1 more source

On Boyd-Wong type multivalued contractions and solvability of (k − ~)-Hilfer fractional differential inclusions

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this article, we introduce the Boyd-Wong type multivalued contractions and demonstrate that such mappings have a fixed point. Additionally, we look at the solvability of a few (k – ~)-Hilfer initial value fractional differential inclusions of order n −
Paunovic Marija, Mohammadi Babak, Parvaneh Vahid   +2 more
doaj   +1 more source

A Short And Constructive Proof of Tarski's Fixed-Point Theorem [PDF]

I give short and constructive proofs of Tarski's fixed-point theorem, and of a much-used extension of Tarski's fixed-point theorem to set- valued maps.tarski, fixed-point theorem, supermodular, supermodular games, strategic complementarities, equilibrium
Federico Echenique
core  

Existence and attractivity results on semi-infinite intervals for integrodifferential equations with non-instantaneous impulsions in Banach spaces

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this article, we study the existence of mild solutions of a non-instantaneous integrodi erential equations on unbounded domain via resolvent operators in Banach space. For our proofs, we employ the semigroups theory and Schauder’s fixed point theorem.
Bensalem Abdelhamid, Salim Abdelkrim, Benchohra Mouffak, Karapinar Erdal   +3 more
doaj   +1 more source

Characterization of Single Gene Deletion Mutants Affecting Alternative Oxidase Production in Neurospora crassa: Role of the yvh1 Gene. [PDF]

Microorganisms, 2020
Desaulniers AB, Kishore N, Adames K, Nargang FE.   +3 more
europepmc   +1 more source

Some fixed point results of generalized ( ϕ , ψ )-contractive mappings in ordered <i>b</i>-metric spaces. [PDF]

BMC Res Notes, 2020
Mitiku B, Karusala K, Namana SR.
europepmc   +1 more source

Forecasting of COVID-19 pandemic: From integer derivatives to fractional derivatives. [PDF]

Chaos Solitons Fractals, 2020
Nabi KN, Abboubakar H, Kumar P.
europepmc   +1 more source

Common coupled fixed point theorems satisfying rational type contractive conditions in b-metric spaces. [PDF]

Springerplus, 2016
Sarwar M, Hussain S, Kumari PS.
europepmc   +1 more source

On different results for new three step iteration process in Banach spaces. [PDF]

Springerplus, 2016
Ullah K, Arshad M.
europepmc   +1 more source