Results 61 to 70 of about 12,601 (208)

An existence result for a Robin problem involving $p(x)$-Kirchhoff-type equation with indefinite weight [PDF]

AUT Journal of Mathematics and Computing
This paper discusses the existence of at least two distinct nontrivial weak solutions for a class of $p(x)$-Kirchhoff-type equation plus an indefinite potential under Robin boundary condition.
Mehdi Latifi, Mohsen Alimohammady
doaj   +1 more source

Fixed points for planar maps with multiple twists, with application to nonlinear equations with indefinite weight. [PDF]

Philos Trans A Math Phys Eng Sci, 2021
Margheri A, Rebelo C, Zanolin F.
europepmc   +1 more source

A Discontinuous Sturm-Liouville Operator With Indefinite Weight

Journal of Mathematics Research, 2010
In this paper, we consider an indefinite Sturm-Liouville operator with eigenparameter-dependent boundary conditions andtransmission conditions. In an appropriate space K, we define a new self-adjoint operator A such that the eigenvalues ofA coincide with those of such a problem and obtain asymptotic approximation for its eigenvalues and eigenfunctions.
Qiuxia Yang, Wanyi Wang
openaire   +1 more source

Funding, Facilities, and the Face of Homelessness: Heterogeneous Impacts of Federal Grants on Sheltered and Unsheltered Counts

Southern Economic Journal, EarlyView.
ABSTRACT This paper examines the causal impact of federal homeless‐assistance grants on reported homelessness and shelter capacity across 370 Continuums of Care in 2019. We exploit cross‐sectional variation in pre‐1940 housing shares, used in Community Development Block Grant formula allocations, as an instrument for combined CoC and Emergency ...
Luke Maddock, Anita Alves Pena
wiley   +1 more source

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

From Nominalisation to Passive in Old Tibetan: Reconstructing Grammatical Meaning in an Extinct Language1

Transactions of the Philological Society, EarlyView.
Abstract Based on an analysis of the Old Literary Tibetan corpus—a corpus of the oldest documented Tibetic language—the present study provides evidence that literary Tibetan v3 verb stems (commonly termed ‘future’) initially encoded passive voice. New arguments put forward in this article range from Trans‐Himalayan nominal morphology to early Tibetan ...
Joanna Bialek
wiley   +1 more source

On the spectrum of the p-biharmonic operator

Electronic Journal of Differential Equations, 2002
This work is devoted to the study of the spectrum for p-biharmonic operator with an indefinite weight in a bounded domain.
Abdelouahed El Khalil, Siham Kellati, Abdelfattah Touzani   +2 more
doaj  

Linear elliptic eigenvalue problems involving an indefinite weight

Journal of Mathematical Analysis and Applications, 1987
Die Verff. untersuchen lineare Eigenwertprobleme vom Typ \[ (Lu)(x)=\lambda m(x)u(x),\quad x\in \Omega, \] wobei L ein linearer, stark elliptischer Differentialoperator ist, \(\Omega\) ein Gebiet mit beschränktem Rand, sowie m(x) eine Funktion, die sowohl positive als auch negative Werte annimmt.
Faierman, M, Roach, G.F
openaire   +2 more sources

AGRICULTURE IN A SOCIALIST CITY: Towards an Alter‐Urban Political Ecology

International Journal of Urban and Regional Research, EarlyView.
Abstract Urban political ecology has developed as a critique of capitalist urbanization. This article develops the concept of alter‐urban political ecology to define urban environments emerging not from capitalist urbanization but from efforts to transform it. Drawing on archival research and ethnographic fieldwork in five urban farms in socialist Cuba,
Gustav Cederlöf
wiley   +1 more source

A spectral problem with an indefinite weight for an elliptic system

Electronic Journal of Differential Equations, 1997
We establish the completeness and the summability in the sense of Abel-Lidskij of the root vectors of a non-selfadjoint elliptic problem with an indefinite weight matrix and the angular distribution of its eigenvalues.
Mamadou Sango
doaj