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Universal Witt vectors in full complete closed padic space omega?
Scott Carnahan (8/21/07) comments: "How do we write elements of \Omega_p? The answer quite simple, and is found in Poonenâ€™s undergraduate thesis. The elements are exactly those power series \sum_{r \in \mathbb{Q}} a_r p^r with coefficients given by Teichmüller representatives of \overline{\mathbb{F}}_p, such that the set of exponents with nonzero coefficients forms a wellordered subset of the rationals." Use this link for full writeup: sbseminar.wordpress.com/2007/08/21/padicfieldsforbeginners 
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asked  Universal Witt vectors in full complete closed padic space omega? 
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23 
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How is the padic norm calculated when using universal witt vectors?
OK. The tag nt.numbertheory has been added. 
Nov
20 
revised 
How is the padic norm calculated when using universal witt vectors?
added a twoletter category (I hope "number theory" is the correct category for padic math) 
Nov
20 
asked  How is the padic norm calculated when using universal witt vectors? 
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accepted  Why use Teichmuller representatives? 
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asked  Why use Teichmuller representatives? 