Nonlinear strong maximum principle, extremal solutions, nodal solutions, critical groups (JNCA)
Volume 14
Number 3
pp. 583-600

Nonlinear strong maximum principle, extremal solutions, nodal solutions, critical groups
L. Gasinski and N.S. Papageorgiou

Key words Mathematices Subject Classification
Metric spaces, tangent spaces to metric spaces, tangent space to convex sets, tangent space to starlike sets

34B15, 34B18, 34C25

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