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math.SG2026
The Four Periodic Inscription Problem
Ali Naseri Sadr
We prove that four periodic curves in inscribe a family of isosceles trapezoids for every angle , whose similarity types are determined by the signed areas…
math.SG2025
Periodic Inscription of Isosceles Trapezoids
Ali Naseri Sadr
We prove that a pair of continuous disjoint periodic curves in inscribes an isosceles trapezoid with any similarity type. The case of smooth curves can be identified w…