Title
Concise Number Theory with Applications: Introductory Theorems and Problems,Used
Delivery time: 8-12 business days (International)
We intended to write this book simple and easy enough for those mathematics majors in their sophomore year or above while boiling down some of the contents to make it appropriate as a semester long number theory textbook without including quadratic congruences, sums of squares, and continued fractions. This book is not only suitable for those graduate students in mathematics as a number theory seminar reference who are not majoring in number theory, but also for those gifted juniors and seniors in high school as a guidance who are preparing for the International Mathematics Olympiad.
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Shipping & Returns
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.
Returns
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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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.).
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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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.