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When is a Disk Trapped by Four Lines?
Authors:Luis Montejano  Tudor Zamfirescu
Institution:1. Instituto de Matemáticas, Unidad Juriquilla, National University of México, Queretaro, Mexico
2. Fakult?t für Mathematik, Technische Universit?t Dortmund, Dortmund, Germany
3. “Simion Stoilow” Institute of Mathematics, Roumanian Academy, Bucharest, Roumania
4. College of Mathematics and Information Science, Hebei Normal University, Shijiazhuang, 050024, People’s Republic of China
Abstract:
Keywords:
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