Title
Some classes of nonlinear operators defined by internal properties: General properties of local, disjointnesspreserving and add,Used
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It is well known that many processes in Mechanic, Physics, Economy, Biology and other sciences can be represented by operators. It is also known that many classical problems for differential equations usually involve local operators which some of them can be represented as nonlinear Nemytskii operator. This is an example of local operator which we concentrated the majority attention on this module. The Theory of Functional Differential Equations also involves inner superposition and integral operators, which are examples of disjointnesspreserving and addictive orthogonally operators. These two operators was considered on this work. We also introduced the notion of partially disjointnesspreserving operator. We analyzed general properties and the representation of all these operators on the space of measurable functions. Furthermore, we related one to another.
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Shipping & Returns
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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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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.