Author Retains CopyrightHeath, John Malcolm2011-06-212022-10-262011-06-212022-10-2619721972https://ir.wgtn.ac.nz/handle/123456789/24870In this thesis we study the non-linear equation L(u) = λ f(x,u), X = (x₁, ---, xₘ) ε Dpdfen-NZhttps://www.wgtn.ac.nz/library/about-us/policies-and-strategies/copyright-for-the-researcharchiveEigenvaluesNonlinear theoriesMathematicsTextAll rights, except those explicitly waived, are held by the Author