Results 21 to 30 of about 17,219 (295)
A note on the qualitative analysis of Volterra integro-differential equations
The aim of paper is to analyse some qualitative properties of solutions of nonlinear Volterra integro-differential equations (VIDDEs) with constant delay and Volterra integro-differential equations (VIDEs) without delay by means of the Razumikhin method.
Cemil Tunç, Osman Tunç
doaj +1 more source
The chemotaxis–Stokes system nt+u⋅∇n=∇⋅(D(n)∇n)−∇⋅(nS(x,n,c)⋅∇c),ct+u⋅∇c=Δc−nc,ut=Δu+∇P+n∇Φ,∇⋅u=0,\left\{\begin{array}{l}{n}_{t}+u\cdot \nabla n=\nabla \cdot (D\left(n)\nabla n)-\nabla \cdot (nS\left(x,n,c)\cdot \nabla c),\\ {c}_{t}+u\cdot \nabla c ...
Winkler Michael
doaj +1 more source
On the boundedness operator [PDF]
This paper is a continuation of the study of the boundedness operator δ. By determination of the congruences (that is, collapsings) of the smallest lattice containing δ and closed under application of δ, a nev classification of all topological spaces is obtained according to boundedness criteria.
openaire +3 more sources
Motivated by a result of \textit{R. E. Curto} and \textit{M. Mathieu} [Proc. Am. Math. Soc. 123, 2431--2434 (1995; Zbl 0822.47034)], the author investigates spectrally bounded and spectrally infinitesimal generalized inner derivations.
openaire +3 more sources
The Concept of Telicity in English, Romanian and Serbian
Given that the notion of telicity was simply defined by English linguists as a situation which tends towards a goal, this paper will additionally explain and define telicity in the English language.
Lazović Mihaela
doaj +1 more source
Computing the area-minimizing surface by the Allen-Cahn equation with the fixed boundary
The Allen-Cahn equation is a famous nonlinear reaction-diffusion equation used to study geometric motion and minimal hypersurfaces. This link has been scrutinized to construct minimal surfaces for many years.
Dongsun Lee
doaj +1 more source
Malaria is a deadly human disease that is still a major cause of casualties worldwide. In this work, we consider the fractional-order system of malaria pestilence. Further, the essential traits of the model are investigated carefully.
Nauman Ahmed +6 more
doaj +1 more source
Mathematical modeling and numerical simulation are valuable tools for getting theoretical insights into dynamic processes such as, for example, within-host virus dynamics or disease transmission between individuals.
Benjamin Wacker, Jan Christian Schlüter
doaj +1 more source
On the boundedness of Hamiltonian operators [PDF]
Summary: We show that a non-negative Hamiltonian operator whose domain contains a maximal uniformly positive subspace is bounded.
Irina V. Gridneva +2 more
openaire +4 more sources
In this paper, an impulsive fractional-like system of differential equations is introduced. The notions of practical stability and boundedness with respect to h-manifolds for fractional-like differential equations are generalized to the impulsive case ...
Gani Stamov +2 more
doaj +1 more source

