Publicación: PERIODIC SOLUTIONS OF AN INDEFINITE SINGULAR EQUATION ARISING FROM THE KEPLER PROBLEM ON THE SPHERE
Fecha
2018
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CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES
Resumen
WE STUDY A SECOND-ORDER ORDINARY DIFFERENTIAL EQUATION COMING FROM THE KEPLER PROBLEM ON S-2. THE FORCING TERM UNDER CONSIDERATION IS A PIECEWISE CONSTANT WITH SINGULAR NONLINEARITY THAT CHANGES SIGN. WE ESTABLISH NECESSARY AND SUFFICIENT CONDITIONS TO THE EXISTENCE AND MULTIPLICITY OF T-PERIODIC SOLUTIONS.
