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The author have comments on the following posts:

• • Bogdan Grechuk
  • 11 May 2026

  A polygon whose billiard flow is weakly mixing

• • akrishna168
  • 23 May 2025
    • created 23 May 2025 07:14
    • updated 23 May 2025 19:47

  Nonexistence of immersions