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| Предыдущая версия справа и слева Предыдущая версия Следующая версия | Предыдущая версия | ||
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shared:seminars_graphs [02.11.2025 01:02] guterman |
shared:seminars_graphs [01.01.2026 13:12] (текущий) guterman |
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| Строка 9: | Строка 9: | ||
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| Для участия в он-лайн семинаре напишите elena -dot- kreines @ gmail -dot- com | Для участия в он-лайн семинаре напишите elena -dot- kreines @ gmail -dot- com | ||
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| + | **26.11.2025** | ||
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| + | Г.Б. Шабат, Длины эллипсов и семейства Фрида | ||
| **19.11.2025** | **19.11.2025** | ||
| Строка 15: | Строка 19: | ||
| We show that various classical theorems of linear incidence geometry, such as the theorems of Pappus, Desargues, Möbius, and so on, can be interpreted as special cases of a general result that involves a tiling of a closed oriented surface by quadrilateral tiles. This yields a general mechanism for producing new incidence theorems and generalizing and interpreting the known ones. | We show that various classical theorems of linear incidence geometry, such as the theorems of Pappus, Desargues, Möbius, and so on, can be interpreted as special cases of a general result that involves a tiling of a closed oriented surface by quadrilateral tiles. This yields a general mechanism for producing new incidence theorems and generalizing and interpreting the known ones. | ||
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| + | **12.11.2025** | ||
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| + | Н.М. Адрианов, | ||
| **05.11.2025** | **05.11.2025** | ||