Results 21 to 30 of about 6,342,270 (352)

Periodic solutions of second order Hamiltonian systems with nonlinearity of general linear growth

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper we consider a class of second order Hamiltonian system with the nonlinearity of linear growth. Compared with the existing results, we do not assume an asymptotic of the nonlinearity at infinity to exist. Moreover, we allow the system to be
Guanggang Liu
doaj   +1 more source

Multibump solutions and critical groups [PDF]

open access: yesTransactions of the American Mathematical Society, 2009
We consider the Newtonian system − q ¨ + B ( t ) q = W q ( q , t ) -\ddot q+B(t)q = W_q(q,t) with B B , W W periodic in t ...
ARIOLI, GIANNI, A. SZULKIN, W. ZOU
openaire   +4 more sources

Critical groups of arithmetical structures under a generalized star-clique operation [PDF]

open access: yesLinear Algebra Appl. 656 (2023) 324-344, 2022
An arithmetical structure on a finite, connected graph without loops is given by an assignment of positive integers to the vertices such that, at each vertex, the integer there is a divisor of the sum of the integers at adjacent vertices, counted with multiplicity if the graph is not simple. Associated to each arithmetical structure is a finite abelian
arxiv   +1 more source

Noncoercive resonant (p,2)-equations with concave terms

open access: yesAdvances in Nonlinear Analysis, 2018
We consider a nonlinear Dirichlet problem driven by the sum of a p-Laplace and a Laplacian (a (p,2){(p,2)}-equation). The reaction exhibits the competing effects of a parametric concave term plus a Caratheodory perturbation which is resonant with respect
Papageorgiou Nikolaos S., Zhang Chao
doaj   +1 more source

Critical Groups of Graphs with Dihedral Actions II

open access: yes, 2016
In this paper we consider the critical group of finite connected graphs which admit harmonic actions by the dihedral group $D_n$, extending earlier work by the author and Criel Merino. In particular, we show that the critical group of such a graph can be
Glass, Darren
core   +3 more sources

On some elliptic interface problems with nonhomogeneous jump conditions

open access: yesAdvances in Nonlinear Analysis, 2013
We obtain nontrivial solutions of some elliptic interface problems with nonhomogeneous jump conditions that arise in localized chemical reactions and nonlinear neutral inclusions.
Bhaskar T. Gnana, Perera Kanishka
doaj   +1 more source

Critical phenomena and renormalization-group theory [PDF]

open access: yesPhysics Reports, 2002
151 pages. Extended and updated version.
Pelissetto A, VICARI, ETTORE
openaire   +4 more sources

Making a positive difference: Criticality in groups

open access: yesCognition, 2023
How critical are individual members perceived to be for their group's performance? In this paper, we show that judgments of criticality are intimately linked to considering responsibility. Prospective responsibility attributions in groups are relevant across many domains and situations, and have the potential to influence motivation, performance, and ...
Tobias Gerstenberg   +2 more
openaire   +3 more sources

The critical group of a combinatorial map [PDF]

open access: yesarXiv, 2023
Motivated by the appearance of embeddings in the theory of chip firing and the critical group of a graph, we introduce a version of the critical group (or sandpile group) for combinatorial maps, that is, for graphs embedded in orientable surfaces. We provide several definitions of our critical group, by approaching it through analogues of the cycle ...
arxiv  

Evidence to the Need for a Unifying Framework: Critical Consciousness and Moral Education in Adolescents Facilitate Altruistic Behaviour in the Community

open access: yesBehavioral Sciences, 2022
Background: Critical consciousness represents an emancipatory pedagogical process whose central goal is developing the necessary skills to identify and act in the direction of changing social limitations.
Gabriela Monica Assante   +2 more
doaj   +1 more source

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