Results 21 to 30 of about 6,200 (156)

On the Fučí k spectrum for the $p$-Laplacian

open access: yesDifferential and Integral Equations, 2001
The structure of the set \(\{(\alpha, \beta) \in \mathbb R^2\): the problem \(-\Delta_p u = \alpha (u^+)^{p-1} - \beta (u^-)^{p-1}\) in \(\Omega\), \(u=0\) on \(\partial\Omega\) has a nontrivial solution\} is studied. See also \textit{N. Dancer} and \textit{K. Perera} [J. Math. Anal. Appl. 254, 164-177 (2001; Zbl 0970.35056)].
MICHELETTI, ANNA MARIA, A. PISTOIA
openaire   +5 more sources

Magnetic Dirichlet Laplacian in curved waveguides [PDF]

open access: yesOpuscula Mathematica
For a two-dimensional curved waveguide, it is well known that the spectrum of the Dirichlet Laplacian is unstable with respect to waveguide deformations. This means that if the waveguide is a straight strip then the spectrum of the Dirichlet Laplacian is
Diana Barseghyan   +3 more
doaj   +1 more source

Signless Laplacian spectrum of power graphs of finite cyclic groups

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
In this paper, we have studied the Signless Laplacian spectrum of the power graph of finite cyclic groups. We have shown that is an eigen value of Signless Laplacian of the power graph of with multiplicity at least In particular, using the theory of ...
Subarsha Banerjee, Avishek Adhikari
doaj   +1 more source

Spectra of the extended neighborhood corona and extended corona of two graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2016
In this paper we define extended corona and extended neighborhoodcorona of two graphs $G_{1}$ and $G_{2}$, which are denoted by$G_{1}\bullet G_{2}$ and $G_{1}\ast G_{2}$ respectively.
Chandrashekar Adiga   +2 more
doaj   +1 more source

Monophonic Distance Laplacian Energy of Transformation Graphs Sn^++-,Sn^{+-+},Sn^{+++}

open access: yesRatio Mathematica, 2023
Let $G$ be a simple connected graph of order $n$, $v_{i}$ its vertex. Let $\delta^{L}_{1}, \delta^{L}_{2}, \ldots, \delta^{L}_{n}$ be the eigenvalues of the distance Laplacian matrix $D^{L}$ of $G$. The distance Laplacian energy is denoted by $LE_{D}(G)$.
Diana R, Binu Selin T
doaj   +1 more source

Spectrum of the A_p-Laplacian Operator

open access: yesBoletim da Sociedade Paranaense de Matemática, 2009
يتناول هذا العمل مشكلة القيمة الذاتية للحدود غير الخطية:\begin{equation *}( V.P_{ A,\rho,I})\ left \{\begin{aligned }& A_p u =\ lambda \rho(x )|u|^{ p -2}u in I =]a; b [;\\& u(a )= u(b )= 0;\end{aligned}\ right.\end{equation*}حيث يُطلق على A_p - Laplacian operator ويتم تعريفه بواسطة A_pu =(\Gamma(x )|u '|^{ p -2}u ')', p > 1, \gamma is a real parameter,
Aomar Anane   +2 more
openaire   +4 more sources

‘Minesweeper’ and spectrum of discrete Laplacians [PDF]

open access: yesApplicable Analysis, 2010
We add consideration of tables based on the triangle tiling of the plane.
German, Oleg, Lakshtanov, Evgeny
openaire   +2 more sources

Tarantula graphs are determined by their Laplacian spectrum

open access: yesElectronic Journal of Graph Theory and Applications, 2021
A graph G is said to be determined by its Laplacian spectrum (DLS) if every graph with the same Laplacian spectrum is isomorphic to G. A graph which is a collection of hexagons (lengths of these cycles can be different) all sharing precisely one vertex ...
Reza Sharafdini, Ali Zeydi Abdian
doaj   +1 more source

On the construction of L-equienergetic graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2015
For a graph G with n vertices and m edges, and having Laplacian spectrum μ1,μ2,…,μn and signless Laplacian spectrum μ1+,μ2+,…,μn+, the Laplacian energy and signless Laplacian energy of G are respectively, defined as LE(G)=∑i=1n|μi−2mn| and LE+(G)=∑i=1n ...
S. Pirzada, Hilal A. Ganie
doaj   +1 more source

Some Chemistry Indices of Clique-Inserted Graph of a Strongly Regular Graph

open access: yesComplexity, 2021
In this paper, we give the relation between the spectrum of strongly regular graph and its clique-inserted graph. The Laplacian spectrum and the signless Laplacian spectrum of clique-inserted graph of strongly regular graph are calculated.
Chun-Li Kan   +3 more
doaj   +1 more source

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