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math.AG2021★ 1 cited
Rigidity, Residues and Duality: Overview and Recent Progress
Amnon Yekutieli
In this article we explain the theory of rigid residue complexes in commutative algebra and algebraic geometry, summarizing the background, recent results and anticipated future re…
math.NT2021
Pythagorean Triples, Complex Numbers, Abelian Groups and Prime Numbers
Amnon Yekutieli
It is well-known that pythagorean triples can be represented by points of the unit circle with rational coordinates. These points form an abelian group, and we describe its structu…