On necessary and sufficient conditions for numerical verification of double turning points
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This paper describes numerical verification of a double turning point of a nonlinear system using an extended system. To verify the existence of a double turning point, we need to prove that one of the solutions of the extended system corresponds to the double turning point. For that, we propose an extended system with an additional condition. As an example, for a finite dimensional problem, we verify the existence and local uniqueness of a double turning point numerically using the extended system and a verification method based on the Banach fixed point theorem.
KeywordsNonlinear System Point Theorem Additional Condition Turning Point Fixed Point Theorem
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