Results 21 to 30 of about 279 (150)

Dirichlet and Neumann Problems Related to Nonlinear Elliptic Systems: Solvability, Multiple Solutions, Solutions with Positive Components

Abstract and Applied Analysis, 2012
We study the solvability of Dirichlet and Neumann problems for different classes of nonlinear elliptic systems depending on parameters and with nonmonotone operators, using existence theorems related to a general system of variational equations in a ...
Luisa Toscano, Speranza Toscano
doaj   +1 more source

Minimal wave speed in a dispersal predator–prey system with delays

Boundary Value Problems, 2018
This paper is concerned with the minimal wave speed in a nonlocal dispersal predator–prey system with delays. We define a threshold. By presenting the existence and nonexistence of traveling wave solutions, we confirm that the threshold is the minimal ...
Xue-Shi Li, Shuxia Pan, Hong-Bo Shi
doaj   +1 more source

Static Security Risk Assessment for Islanded Hybrid AC/DC Microgrid

IEEE Access, 2019
Due to the lack of the support from the main grid, the islanded hybrid ac/dc microgrid will more likely cause the power flow severe fluctuation and even the microgrid to be split once a serious contingency occurs.
Hanmei Peng, Min Su, Shuaihu Li, Canbing Li   +3 more
doaj   +1 more source

A System for Nonmonotonic Rules on the Web

, 2004
Defeasible reasoning is a rule-based approach for efficient reasoning with incomplete and inconsistent information. Such reasoning is, among others, useful for ontology integration, where conflicting information arises naturally; and for the modeling of business rules and policies, where rules with exceptions are often used.
Grigoris Antoniou, Antonis Bikakis, Gerd Wagner 0001   +2 more
openaire   +2 more sources

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

Abstract 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 weak solution of a hyperbolic differential inclusion with nonmonotone discontinuous nonlinear term

International Journal of Mathematics and Mathematical Sciences, 1999
In this paper, a hyperbolic differential inclusion with nonmonotone discontinuous and nonlinear term, which the generalized velocity acts as its variable, is studied and the existence and decay of its weak solution are obtained.
Guo Xingming
doaj   +1 more source

Fractional elliptic obstacle systems with multivalued terms and nonlocal operators

Nonlinear Analysis
In this paper, we introduce and study a fractional elliptic obstacle system, which is composed of two elliptic inclusions with fractional (pi, qi)-Laplace operators, nonlocal functions, and multivalued terms.
Jinxia Cen, Shengda Zeng, Anouar Bahrouni   +2 more
doaj   +1 more source

Interpolation Theorems for Nonmonotonic Reasoning Systems [PDF]

, 2002
NMR ...
openaire   +2 more sources

Belief Change in Nonmonotonic Multi-Context Systems [PDF]

, 2013
Brewka and Eiter's nonmonotonic multi-context system is an elegant knowledge representation framework to model heterogeneous and nonmonotonic multiple contexts. Belief change is a central problem in knowledge representation and reasoning. In this paper we follow the classical AGM approach to investigate belief change in multi-context systems ...
Yisong Wang 0004, Zhiqiang Zhuang, Kewen Wang 0001   +2 more
openaire   +1 more source

Product Positioning and Incentives to Innovate

Journal of Economics &Management Strategy, EarlyView.
ABSTRACT This paper shows that product positioning affects the incentives to invest in process innovation. The result is found using a model of price competition with three firms under horizontal product differentiation—and then extended to a more general Bertrand triopoly.
Emanuele Bacchiega, Paolo G. Garella
wiley   +1 more source