Title
Geometricheskie kriterii mebiusovosti: Kharakterizatsiya mebiusovykh preobrazovaniy pri minimal'nykh predpolozheniyakh (Russian ,Used
Delivery time: 8-12 business days (International)
Mebiusovo preobrazovanie v nmernom prostranstve eto kompozitsiya konechnogo chisla inversiy otnositel'no sfer. Vazhnost' mebiusovykh preobrazovaniy obuslovlena tem, chto na kompleksnoy ploskosti eto konformnye otobrazheniya, a v sluchae n > 2 vse konformnye otobrazheniya, soglasno teoreme Liuvillya, ischerpyvayutsya mebiusovymi. Mebiusovy preobrazovaniya nakhodyat shirokoe primenenie v razlichnykh oblastyakh sovremennoy nauki: teorii funktsiy, geometrii, topologii, differentsial'nykh uravneniyakh, teorii chisel, obshchey teorii gennykh setey i obrabotki signalov. V sovremennoy geometricheskoy teorii funktsiy sushchestvuet napravlenie, nazyvaemoe "kharakterizatsiya geometricheskikh preobrazovaniy pri minimal'nykh predpolozheniyakh", vklyuchayushchee izuchenie dostatochnykh priznakov mebiusovosti, izometrichnosti, affinnosti. Nastoyashchaya rabota posvyashchena issledovaniyu geometricheskikh kriteriev mebiusovosti otobrazheniy ploskikh i prostranstvennykh oblastey. Polucheny nekotorye dostatochnye priznaki mebiusovosti pri minimal'nykh trebovaniyakh k otobrazheniyu.
By changing our most important processes and
products, we have already made a big leap forward. This ranges from the
increased use of more sustainable fibers to the use of more
environmentally friendly printing processes to the development of
efficient waste management in our value chain.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.
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.
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.
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.).
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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Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.
Secure Payment
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.