Results 21 to 30 of about 3,865,749 (296)

Green's functions of multiband non-Hermitian systems

open access: yesPhysical Review Research, 2023
Green's functions of non-Hermitian systems play a fundamental role in various dynamical processes. Because non-Hermitian systems are sensitive to boundary conditions due to the non-Hermitian skin effect, open-boundary Green's functions are closely ...
Yu-Min Hu, Zhong Wang
doaj   +1 more source

BOUNDARY VALUES OF ANALYTIC FUNCTIONS

open access: yesFar East Journal of Applied Mathematics, 2023
Let $D$ be a connected bounded domain in $\R^2$, $S$ be its boundary which is closed, connected and smooth. Let $Φ(z)=\frac 1 {2πi}\int_S\frac{f(s)ds}{s-z}$, $f\in L^1(S)$, $z=x+iy$. Boundary values of $Φ(z)$ on $S$ are studied. The function $Φ(t)$, $t\in S$, is defined in a new way. Necessary and sufficient conditions are given for $f\in L^1(S)$ to be
openaire   +2 more sources

A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
The article is devoted to the study of the asymptotic behavior of solving an integral boundary value problem for a third - order linear differential equation with a small parameter for two higher derivatives, provided that the roots of the "additional ...
N.U. Bukanay   +3 more
doaj  

Orthogonal Franklin system and orthogonal system of finite functions in numerical methods of boundary problems solving

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015
Possibilities of classical trigonometric Fourier series are substantially limited in 2-D and 3-D boundary value problems. Boundary conditions of such problems for areas with curvilinear boundaries often fails when using the classical Fourier series.
Victor L Leontiev
doaj   +1 more source

Defining Feasible Joint and Geometric Workspaces Through Boundary Functions

open access: yesApplied Sciences
This work presents an alternative method for defining feasible joint-space boundaries and their corresponding geometric workspace in a planar robotic system.
Jorge A. Lizarraga   +8 more
doaj   +1 more source

Workspace Definition in Parallelogram Manipulators: A Theoretical Framework Based on Boundary Functions

open access: yesTechnologies
Robots with parallelogram mechanisms are widely employed in industrial applications due to their mechanical rigidity and precise motion control. However, the analytical definition of feasible workspace regions free from self-collisions remains an open ...
Luis F. Luque-Vega   +8 more
doaj   +1 more source

On a class of functions unifying the classes of Paatero, Robertson and others

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
We study a class Mkλ(α,β,b,c) of analytic functions which unifies a number of classes studied previously by Paatero, Robertson, Pinchuk, Moulis, Mocanu and others. Thus our class includes convex and starlike functions of order β, spirallike functions of
S. Bhargava, S. Nanjunda Rao
doaj   +1 more source

The functional bootstrap for boundary CFT [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract We introduce a new approach to the study of the crossing equation for CFTs in the presence of a boundary. We argue that there is a basis for this equation related to the generalized free field solution. The dual basis is a set of linear functionals which act on the crossing equation to give a set of sum rules on the ...
Kaviraj, Apratim   +1 more
openaire   +3 more sources

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld   +5 more
wiley   +1 more source

A novel recursive method to reconstruct multivariate functions on the unit cube

open access: yesOpen Mathematics, 2017
Due to discontinuity on the boundary, traditional Fourier approximation does not work efficiently for d−variate functions on [0, 1]d. In this paper, we will give a recursive method to reconstruct/approximate functions on [0, 1]d well. The main process is
Zhang Zhihua
doaj   +1 more source

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