Results 71 to 80 of about 3,569,907 (305)

Eigenvalue Problems for Fractional $p(x,y)$-Laplacian Equations with Indefinite Weight

Taiwanese journal of mathematics, 2019
. In this paper, we consider a class of eigenvalue problems for fractional p ( x, y )-Laplacian equations with indefinite weight in fractional Sobolev space with variable exponent. Under some suitable conditions on the growth rates involved in the problem,
N. T. Chung
semanticscholar   +1 more source

Singular Sturm?Liouville problems with nonnegative and indefinite weights

Monatshefte f�r Mathematik, 1984
This article is concerned with the oscillatory properties of the eigenfunctions of a class of singular Sturm-Liouville problems \(- (py')'+qy=\lambda wy\) on (a,b), where the weight function w vanishes on a subinterval of positive measure, or where the weight function w changes sign on (a,b).
Kaper, H.G., Kwong, M.K., Zettl, A.
openaire   +2 more sources

Spectrum of a Class of Difference Operators with Indefinite Weights

Journal of Applied Mathematics and Physics, 2020
In this study, we use analytical methods and Sylvester inertia theorem to research a class of second order difference operators with indefinite weights and coupled boundary conditions. The eigenvalue problem with sign-changing weight has lasted a long time.
Congmin Yang, Yunlan Gao, Kang Sun
openaire   +2 more sources

Electropermanent Magnetic Muscles: Power‐Efficient, Low‐Voltage, Compact Magnetic Actuators to Power Wearables and Untethered Robots

Advanced Intelligent Systems, EarlyView.
This work presents compact, low‐voltage actuators based on electropermanent magnetic interactions. The actuators show good overall performance across key metrics and are implemented in wearable devices and untethered robots. Their ability to operate in different configurations and hold positions without energy input highlights their potential for ...
Arturo Castillo Ugalde, Carina Carrasco, Brijesh Chavda, Thileepan Stalin, Pablo Valdivia y Alvarado   +4 more
wiley   +1 more source

Maximum and antimaximum principles for the $p$-Laplacian with weighted Steklov boundary conditions

Electronic Journal of Differential Equations, 2020
We study the maximum and antimaximum principles for the p-Laplacian operator under Steklov boundary conditions with an indefinite weight $$\displaylines{ -\Delta_p u + |u|^{p-2}u = 0 \quad \text{in }\Omega, \cr |\nabla u|^{p-2}\frac{\partial u ...
Mabel Cuesta, Liamidi Leadi, Pascaline Nshimirimana   +2 more
doaj  

Moore-Penrose inverses of Gram matrices Leaving a Cone Invariant in an Indefinite Inner Product Space

, 2015
In this paper we characterize Moore-Penrose inverses of Gram matrices leaving a cone invariant in an indefinite inner product space using indefinite matrix multiplication.
Kurmayya, T., Reddy, K. Appi
core   +2 more sources

Schrödinger equations with indefinite weights in the whole space

Comptes Rendus. Mathématique, 2009
We consider in this Note equations defined in RN involving Schrödinger operators with indefinite weight functions and with potentials which tend to infinity at infinity. We give some results for the existence of principal eigenvalues and for the maximum principle. We also obtain Courant–Fischer formulas for such eigenvalues.
openaire   +2 more sources

Standard and Non-standard Extensions of Lie algebras

, 2005
We study the problem of quadruple extensions of simple Lie algebras. We find that, adding a new simple root $\alpha_{+4}$, it is not possible to have an extended Kac-Moody algebra described by a Dynkin-Kac diagram with simple links and no loops between ...
A. Sciarrino, Frappat L., Harvey J. A., L. A. Forte, West P.   +4 more
core   +2 more sources

“You're this person who's providing light”: Embodied responses to information loss and transition within LGBTQIA+ communities

Journal of the Association for Information Science and Technology, EarlyView.
Abstract This paper reports on findings from 15 semi‐structured interviews with LGBTQIA+ individuals within the United States who have experienced the loss of one or more LGBTQIA+ information spaces. The paper specifically focuses on how such losses occurred and the information transitions experienced by the participants in response to this loss ...
Travis L. Wagner, Vanessa L. Kitzie
wiley   +1 more source

Indefinite Sturm-Liouville operators with the singular critical point zero

, 2006
We present a new necessary condition for similarity of indefinite Sturm-Liouville operators to self-adjoint operators. This condition is formulated in terms of Weyl-Titchmarsh $m$-functions.
Karabash, Illya M., Kostenko, Aleksey S.
core   +1 more source