نتایج جستجو برای: multiplicative map

تعداد نتایج: 208199  

2015
Zhaojuan Wang Shengfan Zhou Z. J. Wang S. F. Zhou

In this paper we study the asymptotic dynamics of the stochastic strongly damped wave equation with multiplicative noise under homogeneous Dirichlet boundary condition. We investigate the existence of a compact random attractor for the random dynamical system associated with the equation.

We define a new type of spectrum, called δ-approximate spectrum, of an element a in a complex unital Banach algebra A and show that the δ-approximate spectrum σ_δ (a) of a is compact. The relation between the δ-approximate spectrum and the usual spectrum is investigated. Also an analogue of the classical Gleason-Kahane-Zelazko theorem is established: For each ε>0, there is δ>0 such that if ϕ is...

Journal: :Fundamental Journal of Mathematics and Applications 2019

Journal: :bulletin of the iranian mathematical society 2015
e. anjidani

we define a new type of spectrum, called δ-approximate spectrum, of an element a in a complex unital banach algebra a and show that the δ-approximate spectrum σ_δ (a) of a is compact. the relation between the δ-approximate spectrum and the usual spectrum is investigated. also an analogue of the classical gleason-kahane-zelazko theorem is established: for each ε>0, there is δ>0 such that if ϕ is...

For a graph $G$ with edge set $E(G)$, the multiplicative sum Zagreb index of $G$ is defined as$Pi^*(G)=Pi_{uvin E(G)}[d_G(u)+d_G(v)]$, where $d_G(v)$ is the degree of vertex $v$ in $G$.In this paper, we first introduce some graph transformations that decreasethis index. In application, we identify the fourteen class of trees, with the first through fourteenth smallest multiplicative sum Zagreb ...

Journal: :Thermal Science 2022

In this work, the definition of first and second types multiplicative Chebyshev differential equations is given solutions these are investigated with help power series. Also, properties type polynomials proved. Finally, studies supported numerical examples.

1998
Marek Capiński Nigel J. Cutland MAREK CAPIŃSKI NIGEL J. CUTLAND

We show existence of measure attractors for 2-D stochastic Navier-Stokes equations with general multiplicative noise.

Journal: :SIAM J. Math. Analysis 2015
Julian Fischer Günther Grün

In this paper, we develop an energy method to study finite speed of propagation and waiting time phenomena for the stochastic porous-media equation with linear multiplicative noise in up to three spatial dimensions. Based on a novel iteration technique and on stochastic counterparts of weighted integral estimates used in the deterministic setting, we formulate a sufficient criterion on the grow...

Journal: :Nonlinear Analysis-theory Methods & Applications 2023

We use the method of higher order linearization to study an inverse boundary value problem for minimal surface equation on a Riemannian manifold $(\mathbb{R}^n,g)$, where metric $g$ is conformally Euclidean. In particular we show that with knowledge Dirichlet-to-Neumann map associated equation, one can determine Taylor series conformal factor $c(x)$ at $x_n=0$ up multiplicative constant. this b...

‎Bucket recursive trees are an interesting and natural‎ ‎generalization of ordinary recursive trees and have a connection‎ to mathematical chemistry‎. ‎In this paper‎, ‎we give the lower and upper bounds for the moment generating‎ ‎function and moments of the multiplicative Zagreb indices in a‎ ‎randomly chosen bucket recursive tree of size $n$ with maximal bucket size $bgeq1$‎. Also, ‎we consi...

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