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Negative criteria for the existence of periodic solutions in a class of delay-differential equations |
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| Affiliation: | 1. ICAR- National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Yelahanka, Bengaluru 560064, Karnataka, India;2. Animal Health Division, ICAR-Central Sheep and Wool Research Institute (CSWRI), Avikanagar 304501, Rajasthan, India |
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