Title
Isotropisation de l'Univers En Prsence de Champs Scalaires (Omn.Pres.Franc.) (French Edition),Used
Delivery time: 8-12 business days (International)
Product DescriptionL'Univers est en expansion et celleci semble tre la mme dans toutes les directions de l'espace. Comment expliquer une si parfaite symtrie autrement qu'en l'rigeant comme un principe cosmologique ? Une rponse possible est de supposer qu' la naissance de l'Univers, son expansion n'tait pas la mme dans toutes les directions mais qu'elle l'est devenue au fil du temps grce des champs scalaires. Ces derniers, prdits par les thories de physique des particules, seraient prsents dans tout l'espace. Ce livre s'attache dfinir les proprits de ces champs qui auraient permis un Univers l'expansion initialement anisotrope, dcrit par les modles de Bianchi, de devenir isotrope et ainsi dcrit par les modles cosmologiques FLRW, en accord avec le principe cosmologique et les observations actuelles.About the AuthorStphane Fay est docteur en Astronomie. Il travaille aujourd'hui Paris en tant que mdiateur scientifique au Palais de la Dcouverte.
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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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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.