Results 21 to 30 of about 63,391 (265)

On q-double modified Laplace transform [PDF]

open access: yesMathematics and Computational Sciences
The Laplace transform is widely used in science and technology to deal with complex problemsin stability and control systems. The modified Laplace transform has been applied in physics andmathematics to solve boundary layer equations in ordinary ...
Srikumar Panda   +2 more
doaj   +1 more source

Dynamics of solutions of nonlinear functional differential equation of parabolic type [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2022
Purpose of this work is to study the initial-boundary value problem for a parabolic functional-differential equation in an annular region, which describes the dynamics of phase modulation of a light wave passing through a thin layer of a nonlinear Kerr ...
Kornuta, Anshelika Alexandrovna   +1 more
doaj   +1 more source

The Complex WKB Method for Difference Equations and Airy Functions [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2019
We consider the difference Schr{ö}dinger equation $ψ$(z + h) + $ψ$(z -- h) + v(z)$ψ$(z) = 0 where z is a complex variable, h > 0 is a parameter, and v is an analytic function. As h $\rightarrow$ 0 analytic solutions to this equation have a standard quasiclassical behavior near the points where v(z) = $\pm$2.
Alexander Fedotov, Frédéric Klopp
openaire   +3 more sources

Complex Monge–Ampère equations for plurifinely plurisubharmonic functions

open access: yesIndagationes Mathematicae, 2023
This paper studies the complex Monge-Ampère equations for $\mathcal F$-plurisubharmonic functions in bounded $\mathcal F$-hyperconvex domains. We give sufficient conditions for this equation to solve for measures with a singular part.
Nguyen Xuan Hong   +3 more
openaire   +3 more sources

Health as a space-time continuum

open access: yesJournal of Education, Health and Sport, 2018
The purpose of work is to quantify the changes of the organism functional reserves during the successive phases of the human health Space-Time Continuum (STC) on the basis of postulates of reliability complex systems theory.
Anatolii Gozhenko   +3 more
doaj   +3 more sources

Investigation of the Predictive Capabilities of a Data-Driven Multilayer Neuromorphic Model by the Example of the Duffing Oscillator

open access: yesСовременные информационные технологии и IT-образование, 2021
The transition to Industry 4.0 highlights areas of research that require a qualitative description of a complex system, for example, a cyber-physical one, in the form of an adaptive dynamic model since the systems themselves are subject to change over ...
Alexander Vasilyev   +5 more
doaj   +1 more source

Bounds for the functional spectrum of operators in a Hilbert space [PDF]

open access: yesMathematica Moravica
Let H1 and H2 be Hilbert spaces with the unit operators I1 and I2, respectively, and Ajk be bounded operators acting from Hj into Hk (j, k = 1, 2). We consider the block operator matrices A = (Ajk) and F(z) = diag (Kˆj (z)Ij ), where Kˆ1(z) and Kˆ2(z ...
Gil' Michael
doaj   +1 more source

Local Theory of Complex Functional Differential Equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1971
We consider the equation ( ∗
openaire   +2 more sources

On Growth of Meromorphic Solutions of Complex Functional Difference Equations [PDF]

open access: yesAbstract and Applied Analysis, 2014
The main purpose of this paper is to investigate the growth order of the meromorphic solutions of complex functional difference equation of the form(∑λ∈I‍αλ(z)(∏ν=1n‍f(z+cν)lλ,ν))/(∑μ∈J‍βμ(z)(∏ν=1n‍f(z+cν)mμ,ν))=Q(z,f(p(z))), whereI={λ=(lλ,1,lλ,2,…,lλ,n)∣lλ,ν∈ℕ⋃‍{0},  ν=1,2,…,n}andJ={μ=(mμ,1,mμ,2,…,mμ,n)∣mμ,ν∈ℕ⋃‍{0},  ν=1,2,…,n}are two finite index ...
Jing Li, Jianjun Zhang, Liangwen Liao
openaire   +3 more sources

Vibration Antiresonance Design for a Spacecraft Multifunctional Structure

open access: yesShock and Vibration, 2017
Spacecraft must withstand rigorous mechanical environment experiences such as acceleration, noise, vibration, and shock during the process of launching, satellite-vehicle separation, and so on.
Dong-Xu Li, Wang Liu, Dong Hao
doaj   +1 more source

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