Browsing by Author "Herreros, Pilar"
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- ItemMULTIPLICITY RESULTS FOR GROUND STATE SOLUTIONS OF A SEMILINEAR EQUATION VIA ABRUPT CHANGES IN MAGNITUDE OF THE NONLINEARITY(2022) Cortazar, Carmen; Garcia-Huidobro, Marta; Herreros, PilarGiven k is an element of N, we define a class of continuous piecewise functions f having abrupt but controlled magnitude changes so that the problem Delta u + f (u) = 0, x is an element of RN, N > 2, has at least k radially symmetric positive solutions.
- ItemON THE UNIQUENESS OF SOLUTIONS OF A SEMILINEAR EQUATION IN AN ANNULUS(2021) Cortazar, Carmen; Garcia-Huidobro, Marta; Herreros, Pilar; Tanaka, SatoshiWe establish the uniqueness of positive radial solutions of