Results 131 to 140 of about 61,432 (313)

Cazenave‐Dickstein‐Weissler‐Type Extension of Fujita'S Problem on Heisenberg Groups

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper investigates the Fujita critical exponent for a heat equation with nonlinear memory posed on the Heisenberg groups. A sharp threshold is identified such that, for exponent values less than or equal to this critical value, no global solution exists, regardless of the choice of nonnegative initial data. Conversely, for exponent values
Mokhtar Kirane   +3 more
wiley   +1 more source

On semilinear inequalities involving the Dunkl Laplacian and an inverse-square potential outside a ball

open access: yesAdvances in Nonlinear Analysis
Let Δk{\Delta }_{k} be the Dunkl generalized Laplacian operator associated with a root system RR of RN{{\mathbb{R}}}^{N}, N≥2N\ge 2, and a nonnegative multiplicity function kk defined on RR and invariant by the finite reflection group WW.
Jleli Mohamed   +2 more
doaj   +1 more source

Establishing Reciprocity as A Dimension of Nonprofit Entrepreneurial Orientation

open access: yesNonprofit Management and Leadership, EarlyView.
ABSTRACT This study introduces and characterizes reciprocity as a distinct sixth dimension of entrepreneurial orientation (EO) within nonprofit organizations (NPOs), specifically Brazilian Medical Associations (BMAs). Through a qualitative exploratory study using 16 BMAs as units of analysis and data from 11 in‐depth interviews with nonprofit sector ...
Fabricio Martins Lacerda   +2 more
wiley   +1 more source

Righting Past Wrongs Through Restorative Justice: Managerial Motivations for Collaboration

open access: yesNonprofit Management and Leadership, EarlyView.
ABSTRACT Nonprofits are crucial to state collaborations as their embedded nature in communities allows them to gain the trust necessary to facilitate change and enhance strengths. As nonprofits collaborate with the public sector to tackle systemic challenges, understanding managerial motivations for collaboration and implications for social change is ...
Kara L. Lawrence   +2 more
wiley   +1 more source

Nonexistence of stable solutions to p-Laplace equations with exponential nonlinearities

open access: yesElectronic Journal of Differential Equations, 2016
In this note we prove the nonexistence of stable solutions to the p-Laplace equation $-\Delta_p u = e^u$ on the entire Euclidean space $\mathbb{R}^N$, where $p>2$ and $N < \frac{p(p+3)}{p-1}$.
Phuong Le
doaj  

Qualitative properties of two-end solutions to the Allen–Cahn equation in R3 ${\mathbb{R}}^{3}$

open access: yesAdvanced Nonlinear Studies
A solution of the Allen–Cahn equation in R3 ${\mathbb{R}}^{3}$ is called a two-end solution if its nodal set is asymptotic to (x′,z)∈R3:z=ki⁡ln|x′|+ci,1≤i≤2 $\left\{\left({x}^{\prime },z\right)\in {\mathbb{R}}^{3}:z={k}_{i}\mathrm{ln}\vert {x}^{\prime }\
Liang Weizhao, Yang Jianmin
doaj   +1 more source

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