Title
El fenmeno de Pinsky para funciones suaves en cuerpos convexos: La inversin puntual de Fourier para funciones suaves a trozo,Used
Delivery time: 8-12 business days (International)
En 1993, Mark A. Pinsky dio a conocer un comportamiento inesperado de la transformada de Fourier para funciones suaves a trozos definidas en el espacio real ndimensional. Conociendo la transformada de Fourier, un problema fundamental del Anlisis de Fourier es el de su inversin puntual, el cual consiste en hallar la funcin, en puntos determinados, de la cual proviene esa transformada. Es un resultado conocido en esta rea de las matemticas que este problema es resuelto para funciones suaves a trozos definidas en el espacio real. El fenmeno hallado por Pinsky consisti en probar que existan funciones suaves a trozos definidas en el espacio real ndimensional, donde n es mayor o igual a tres, para las cuales no se tena un comportamiento similar. En este texto explicamos en detalle el fenmeno de Pinsky y mostramos que el problema de inversin puntual para la transformada de Fourier se resuelve para funciones suaves definidas sobre cuerpos convexos que estn en posicin general con el dominio conexo sobre el que se considera el operador suma parcial. Si estos cuerpos estn conectados Legendre, entonces no se cumple la inversin en el origen.
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.
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.).
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.
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.