Results 1 to 10 of about 45 (44)

Spectral properties of generalized eigenparameter dependent discrete Sturm-Liouville type equation

Quaestiones Mathematicae, 2017
Let L denote the non-selfadjoint difference operator of second order with boundary condition generated in ℓ2 (ℕ) byan-1yn-1 + bnyn + anyn+1 = λyn ; n ∈ ℕ;   (0.1)pΣk=0 (y1γk + y0βk) λk = 0;                    (0.2)where {an} n∈ℕ and {bn} n∈ℕ are complex ...
Turhan Koprubasi, R N Mohapatra
exaly   +2 more sources

Doubling Property and Vanishing Order of Steklov Eigenfunctions

Communications in Partial Differential Equations, 2015
Jiuyi Zhu
exaly  

On the geometry of degree conditions for multiparameter oscillation theorems

Differential and Integral Equations, 1993
exaly  

Cheeger's inequalities for general symmetric forms and existence criteria for spectral gap

Annals of Probability, 2000
Feng-Yu Wang
exaly  

Non-existence of positive eigenvalues of the Schrödinger operator in a domain with unbounded boundary

Kyoto Journal of Mathematics, 1991
exaly  

Trapped modes in angular joints of 2D waveguides

Applicable Analysis, 2014
S A Nazarov
exaly  

On the transcendental radius of the Volterra integration operator

Annals of Functional Analysis, 2015
exaly  

Scattering properties of Sturm-Liouville equations with sign-alternating weight and transmission condition at turning point

Open Mathematics, 2023
In this article, we focus on the scattering analysis of Sturm-Liouville type singular operator including an impulsive condition and turning point. In the classical literature, there are plenty of papers considering the positive values of the weight ...
Çoşkun Nimet, Görgülü Merve
doaj   +1 more source

Finite spectrum of fourth-order boundary value problems with boundary and transmission conditions dependent on the spectral parameter

Open Mathematics, 2023
A kind of fourth-order boundary value problem with eigenparameter-dependent boundary and transmission conditions is investigated. By constructing the characteristic function, we prove that the problems consist of a finite number of eigenvalues. We obtain
Zhang Na, Ao Ji-jun
doaj   +1 more source

Normalized Laplacian Spectrum of Some Q-Coronas of Two Regular Graphs

Discussiones Mathematicae - General Algebra and Applications, 2021
In this paper we determine the normalized Laplacian spectrum of the Q-vertex corona, Q-edge corona, Q-vertex neighborhood corona, and Q-edge neighborhood corona of a connected regular graph with an arbitrary regular graph in terms of normalized Laplacian
Das Arpita, Panigrahi Pratima
doaj   +1 more source