Results 21 to 30 of about 4,429,182 (354)

Strong and Weak Leonov Functions for Global Boundedness of State Periodic Systems

open access: yesIEEE Transactions on Automatic Control, 2023
We present new results for the analysis of global boundedness of state periodic systems. Thereby, we address both the case of systems, whose dynamics is periodic with respect to a part of the state vector, and the case of systems, whose dynamics is ...
Johannes Schiffer, D. Efimov
semanticscholar   +1 more source

Long time behavior of the solution to a chemotaxis system with nonlinear indirect signal production and logistic source

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
This paper is devoted to studying the following quasilinear parabolic-elliptic-elliptic chemotaxis system \begin{equation*} \begin{cases} u_{t}=\nabla\cdot(\varphi(u)\nabla u-\psi(u)\nabla v)+au-bu^{\gamma},\ &\ \ x\in \Omega, \ t>0,\\[2.5mm] 0 ...
Chang-Jian Wang, Ya-Jie Zhu, Xin-Cai Zhu
doaj   +1 more source

On the global boundedness of Fourier integral operators [PDF]

open access: yesAnnals of Global Analysis and Geometry, 2010
30 ...
CORDERO, Elena   +2 more
openaire   +4 more sources

Boundedness and stabilization of a predator-prey model with attraction- repulsion taxis in all dimensions

open access: yesMathematical Biosciences and Engineering, 2022
This paper establishes the existence of globally bounded classical solutions to a predator-prey model with attraction-repulsion taxis in a smooth bounded domain of any dimensions with Neumann boundary conditions.
Wenbin Lyu
doaj   +1 more source

Global boundedness of classical solutions to a logistic chemotaxis system with singular sensitivity

open access: yesDiscrete & Continuous Dynamical Systems - B, 2021
We consider a chemotaxis system with singular sensitivity and logistic-type source: \begin{document}$ u_t = \Delta u-\chi\nabla\cdot(\frac{u}{v}\nabla v)+ru-\mu u^k $\end{document} , \begin{document}$ v_t = \epsilon\Delta v-v+u $\end{document} in a ...
Xiangdong Zhao
semanticscholar   +1 more source

ON THE BOUNDEDNESS OF THE RIESZ POTENTIAL AND ITS COMMUTATOR’S IN THE GLOBAL MORREY TYPE SPACES WITH VARIABLE EXPONENTS

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
The paper considers the global Morrey-type spaces GMp(.),θ(.),w(.)(Ω) with variable exponents p(.), θ(.), where Ω ⊂ Rn is an unbounded domain. The questions of boundedness of the Riesz potential and its commutator in these spaces are investigated.
Zh. M. Onerbek
doaj   +1 more source

Global boundedness of classical solutions to a Keller-Segel-Navier-Stokes system involving saturated sensitivity and indirect signal production in two dimensions

open access: yesElectronic Research Archive, 2023
This paper is concerned with the following Keller–Segel–Navier–Stokes system with indirect signal production and tensor-valued sensitivity: $ \left\{\begin{array}{*5{lllll }} n_{t}+u \cdot \nabla n=\Delta n-\nabla \cdot(n S(x,n,v,w) \nabla v)
Kai Gao
doaj   +1 more source

Global Boundedness of the Fully Parabolic Keller-Segel System with Signal-Dependent Motilities [PDF]

open access: yes, 2020
This paper establishes the global uniform-in-time boundedness of solutions to the following Keller-Segel system with signal-dependent diffusion and chemotaxis { u t = ∇ ⋅ ( γ ( v ) ∇ u − u ϕ ( v ) ∇ v ) , x ∈ Ω , t > 0 , v t = d Δ v − v + u , x ∈ Ω , t >
Zhian Wang, Jiashan Zheng
semanticscholar   +1 more source

Global existence and uniform boundedness to a bi-attraction chemotaxis system with nonlinear indirect signal mechanisms

open access: yesCommunications in Analysis and Mechanics, 2023
In this paper, we study the following quasilinear chemotaxis system $ \begin{equation*} \left\{ \begin{array}{ll} u_{t} = \Delta u-\chi \nabla \cdot (\varphi (u)\nabla v)-\xi \nabla \cdot (\psi(u)\nabla w)+f(u), \ &\ \ x\in \Omega, \ t>0, \
Chang-Jian Wang, Jia-Yue Zhu
doaj   +1 more source

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