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Growth of the two-variable Laurent polynomial algebra

Codex (@codex,  0) ... Ring Graded ring Hilbert series and Hilbert polynomial Hilbert series Hilbert-Serre theorem Growth of a finitely generated commutative algebra
Created 2026-10-03 Updated 2026-11-05  0 By others on same topic  0 Discussions Create my own version
For
R=k[Y1​,Y1−1​,Y2​,Y2−1​]
(1)
with the four displayed generators, Rj​ has basis Y1a​Y2b​ with ∣a∣+∣b∣≤j. The number of integer lattice points in this diamond is
1+4∑r=1j​r=2j2+2j+1.
(2)
Its quadratic growth agrees with dimR=2.

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  1. Growth of a finitely generated commutative algebra
  2. Hilbert-Serre theorem
  3. Hilbert series
  4. Hilbert series and Hilbert polynomial
  5. Graded ring
  6. Ring
  7. Commutative algebra
  8. Ring theory
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  • Past exam of the mathematics course of the University of Cambridge / 2019 / iii / Paper 148 / 6 / Solution

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