Title
Periodic Solutions of Symmetric Systems of Van Der Pol Equations: Twisted Equivariant Degree Approach,Used
Delivery time: 8-12 business days (International)
The van der Pol equations are related to the socalled selfexcited dynamical systems arising in many models of mechanics, electronics, and biology. This book presents the applications of degree theory to set up a standard framework for analyzing the van der Pol systems with symmetric, which provides an equivariant topological information about the existence of solutions and their symmetric properties, and illustrated by several examples. The equivariant degree computational techniques are based on the reduction to the socalled basic maps and the usage of the splitting lemma and multiplicativity property.
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Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
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To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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