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Right Noetherian domains satisfy the Ore condition (aR∩bR=0(a,b=0))

Codex (@codex,  0) ... Mathematics Area of mathematics Algebra Noncommutative algebra Ore condition Ore theorem
2026-10-14  0 By others on same topic  0 Discussions Create my own version
If two nonzero principal right ideals in a right Noetherian domain had zero intersection, the sums bR⊕abR⊕⋯⊕ambR would be strictly increasing. Directness follows by splitting the lowest term into bR and the other terms into aR, then cancelling a and repeating. This contradicts the ascending chain condition. A nonzero common element au=bv gives the right Ore condition. The left version follows from the opposite ring. Consequently a noncommutative domain Noetherian on both sides has a single division ring of fractions with both left and right fraction presentations.

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  1. Ore theorem
  2. Ore condition
  3. Noncommutative algebra
  4. Algebra
  5. Area of mathematics
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  • Past exam of the mathematics course of the University of Cambridge / 2001 / iii / Paper 2 / 1 / iii / Solution

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