Results 101 to 110 of about 5,560 (184)

A new stability results for the backward heat equation

, 2009
In this paper, we regularize the nonlinear inverse time heat problem in the unbounded region by Fourier method. Some new convergence rates are obtained.
Dinh, Alain Pham Ngoc, Quan, Pham Hoang, Trong, Dang Duc, Tuan, Nguyen Huy   +3 more
core  

A note on ‘A best proximity point theorem for Geraghty-contractions’

, 2013
In Caballero et al. (Fixed Point Theory Appl. (2012). doi:10.1186/1687-1812-2012-231), the authors prove a best proximity point theorem for Geraghty nonself contraction.
Jingling Zhang, Yongfu Su, Qingqing Cheng   +2 more
semanticscholar   +1 more source

Existence of solutions for quasilinear random impulsive neutral differential evolution equation

Arab Journal of Mathematical Sciences, 2018
This paper deals with the existence of solutions for quasilinear random impulsive neutral functional differential evolution equation in Banach spaces and the results are derived by using the analytic semigroup theory, fractional powers of operators and ...
B. Radhakrishnan, M. Tamilarasi
doaj  

On Hilbert Functions of Points in Projective Space and Structure of Graded Modules

, 2018
In this paper, we investigate the relationship between the Hilbert functions and the associated properties of the graded modules. To attain this, we construct the graded modules from the sets of points in projective space, $\mathbb{P}_k^n$ .
Mgani, Damas Karmel, Mwanzalima, Makungu
core  

Fixed point results for single and set-valued α-η-ψ-contractive mappings

, 2013
Samet et al. (Nonlinear Anal. 75:2154-2165, 2012) introduced α-ψ-contractive mappings and proved some fixed point results for these mappings. More recently Salimi et al. (Fixed Point Theory Appl.
N. Hussain, P. Salimi, A. Latif
semanticscholar   +1 more source

Fixed point theorem for generalized weak contractions satisfying rational expressions in ordered metric spaces

Fixed Point Theory and Applications, 2011
In this paper, we prove a fixed point theorem for generalized weak contractions satisfying rational expressions in partially ordered metric spaces. The result is a generalization of a recent result of Harjani et al. (Abstr. Appl.
Luong Nguyen Van, Thuan Nguyen
doaj  

Common fixed points for single-valued and multi-valued maps satisfying a generalized contraction in G-metric spaces

, 2012
In this article, we establish some common fixed point theorems for a hybrid pair {g, T} of single valued and multi-valued maps satisfying a generalized contractive condition defined on G-metric spaces. Our results unify, generalize and complement various
N. Tahat, H. Aydi, E. Karapınar, W. Shatanawi   +3 more
semanticscholar   +1 more source

Principal Intuitionistic Fuzzy Ideals and Filters on a Lattice

Discussiones Mathematicae - General Algebra and Applications, 2020
In this paper, we generalize the notion of principal ideal (resp. filter) on a lattice to the setting of intuitionistic fuzzy sets and investigate their various characterizations and properties.
Boudaoud Sarra, Zedam Lemnaouar, Milles Soheyb   +2 more
doaj   +1 more source

Common fixed point results for mappings under nonlinear contraction of cyclic form in ordered metric spaces

, 2013
In this paper, we introduce the notion of a cyclic (ψ,A,B)-contraction for the pair (f,T) of self-mappings on the set X. We utilize our definition to introduce some common fixed point theorems for the two mappings f and T under a set of conditions. Also,
W. Shatanawi, M. Postolache
semanticscholar   +1 more source

Fixed and periodic points of generalized contractions in metric spaces

, 2013
Wardowski (Fixed Point Theory Appl. 2012:94, 2012, doi:10.1186/1687-1812-2012-94) introduced a new type of contraction called F-contraction and proved a fixed point result in complete metric spaces, which in turn generalizes the Banach contraction ...
M. Abbas, Basit Ali, S. Romaguera
semanticscholar   +1 more source