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UBC Theses and Dissertations

New solutions to local and non-local elliptic equations Chan, Hon To Hardy


We obtain a few existence results for elliptic equations. We develop in Chapter 2 a new infinite dimensional gluing scheme for fractional elliptic equations in the mildly non-local setting. Here it is applied to the catenoid. As a consequence of this method, a counter-example to a fractional analogue of De Giorgi conjecture can be obtained [51]. Then, in Chapter 3, we construct singular solutions to the fractional Yamabe problem using conformal geometry. Fractional order ordinary differential equations are studied. Finally, in Chapter 4, we obtain the existence to a suitably perturbed doublycritical Hardy–Schr¨odinger equation in a bounded domain in the hyperbolic space.

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