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Vipul Naik
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Ring of Witt ringvectors and p-adics

This is probably an easy question, but I'm not able to figure it out.

Are the following the same:

  1. Field of fractions of the Witt ring of Witt vectors over the algebraic closure of $\mathbb{F}_p$

  2. Algebraic closure of the field of p-adics (which is the field of fractions of the Witt ring of Witt vectors over $\mathbb{F}_p$)

In other words, does the operation of taking the field of fractions of the Witt ring of Witt vectors commute with the operation of taking the algebraic closure?

Witt ring and p-adics

This is probably an easy question, but I'm not able to figure it out.

Are the following the same:

  1. Field of fractions of the Witt ring over the algebraic closure of $\mathbb{F}_p$

  2. Algebraic closure of the field of p-adics (which is the field of fractions of the Witt ring over $\mathbb{F}_p$)

In other words, does the operation of taking the field of fractions of the Witt ring commute with the operation of taking the algebraic closure?

Ring of Witt vectors and p-adics

This is probably an easy question, but I'm not able to figure it out.

Are the following the same:

  1. Field of fractions of the ring of Witt vectors over the algebraic closure of $\mathbb{F}_p$

  2. Algebraic closure of the field of p-adics (which is the field of fractions of the ring of Witt vectors over $\mathbb{F}_p$)

In other words, does the operation of taking the field of fractions of the ring of Witt vectors commute with the operation of taking the algebraic closure?

Source Link
Vipul Naik
  • 7.3k
  • 2
  • 36
  • 82

Witt ring and p-adics

This is probably an easy question, but I'm not able to figure it out.

Are the following the same:

  1. Field of fractions of the Witt ring over the algebraic closure of $\mathbb{F}_p$

  2. Algebraic closure of the field of p-adics (which is the field of fractions of the Witt ring over $\mathbb{F}_p$)

In other words, does the operation of taking the field of fractions of the Witt ring commute with the operation of taking the algebraic closure?