Results 11 to 20 of about 162,453 (80)

Decision-Making Optimization of Risk-Seeking Retailer Managed Inventory Model in a Water Supply Chain

open access: yesDiscrete Dynamics in Nature and Society, 2021
Water retailer managed inventory is a classical and inevitable inventory management mode in present economic society. Stochastic models can more clearly explain demand uncertainty and are closely related to water supply chains.
Wenfang Yu, Guisheng Hou, Baogui Xin
doaj   +1 more source

Almost antiproximinal sets in L_1 [PDF]

open access: yesМатематичні Студії, 2011
We introduce a notion of almost antiproximinality of sets in the space L_1 which is a weakening of the notion of antiproximinality. Also we investigate properties of almost antiproximinal sets and establish a method of construction of almost ...
V. A. Kholomenyuk, V. V. Mykhaylyuk
doaj  

Attractors for Nonautonomous Multivalued Evolution Systems Generated by Time-Dependent Subdifferentials

open access: yesAbstract and Applied Analysis, 2002
In a real separable Hilbert space, we consider nonautonomous evolution equations including time-dependent subdifferentials and their nonmonotone multivalued perturbations.
Noriaki Yamazaki
doaj   +1 more source

On representation matrices of Kaloujnine’s 2-groups (in Russian) [PDF]

open access: yesМатематичні Студії, 2011
Images of the faithful triangular representation of Kaloujnine's 2-groups are obtained.
Yu. G. Leonov
doaj  

Asymptotic Convergence of the Solutions of a Dynamic Equation on Discrete Time Scales

open access: yesAbstract and Applied Analysis, 2012
The paper investigates a dynamic equation Δy(tn)=β(tn)[y(tn−j)−y(tn−k)] for n→∞, where k and j are integers such that k>j≥0, on an arbitrary discrete time scale T:={tn} with tn∈ℝ, n∈ℤn0−k∞={n0−k,n0−k+1,…}, n0∈ℕ ...
J. Diblík   +3 more
doaj   +1 more source

Existence of Solutions for Degenerate Elliptic Problems in Weighted Sobolev Space

open access: yesJournal of Function Spaces, 2015
This paper is devoted to the study of the existence of solutions to a general elliptic problem Au+g(x,u,∇u)=f-div⁡F, with f∈L1(Ω) and F∈∏i=1NLp'(Ω,ωi*), where A is a Leray-Lions operator from a weighted Sobolev space into its dual and g(x,s,ξ) is a ...
Lili Dai, Wenjie Gao, Zhongqing Li
doaj   +1 more source

Some results on certain subclasses of analytic functions involving generalized hypergeometric functions and Hadamard product

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
By using a certain linear operator defined by a Hadamard product or convolution, several interesting subclasses of analytic functions in the unit disc are introduced and some unifying relationships between them are established.
Khalida Inayat Noor
doaj   +1 more source

On the existence of weak solutions for the initial-boundary value problem in the Jeffreys model of motion of a viscoelastic medium

open access: yesAbstract and Applied Analysis, 2004
This paper deals with the initial-boundary value problem for the system of motion equations of an incompressible viscoelastic medium with Jeffreys constitutive law in an arbitrary domain of two-dimensional or three-dimensional space.
D. A. Vorotnikov, V. G. Zvyagin
doaj   +1 more source

Inference on the Beta Type I Generalized Half Logistic Distribution under Right-Censored Observation with Application to COVID-19

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2022
In real-life situations, censoring issues do arise due to the incompleteness of data. This article examined the inferences on right-censored beta type I generalized half logistic distribution.
Phillip Oluwatobi Awodutire   +4 more
doaj   +1 more source

Solutions of the Difference Equation 𝑥𝑛+1=𝑥𝑛𝑥𝑛−1−1

open access: yesAbstract and Applied Analysis, 2010
Our goal in this paper is to investigate the long-term behavior of solutions of the following difference equation: 𝑥𝑛+1=𝑥𝑛𝑥𝑛−1−1, 𝑛=0,1,2,…, where the initial conditions 𝑥−1 and 𝑥0 are real numbers. We examine the boundedness of solutions, periodicity of
Candace M. Kent   +3 more
doaj   +1 more source

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