Boy's surface
In geometry, Boy's surface is an immersion of the real projective plane in 3-dimensional space found by Werner Boy in 1901 (he discovered it on assignment from David Hilbert to prove that the projective plane could not be immersed in 3-space). Unlike the Roman surface and the cross-cap, it has no singularities (i.e., pinch-points), but it does self-intersect. Boy's surface is discussed (and illustrated) in Jean-Pierre Petit's Le Topologicon.
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Boy's surface
In geometry, Boy's surface is an immersion of the real projective plane in 3-dimensional space found by Werner Boy in 1901 (he discovered it on assignment from David Hilbert to prove that the projective plane could not be immersed in 3-space). Unlike the Roman surface and the cross-cap, it has no singularities (i.e., pinch-points), but it does self-intersect. Boy's surface is discussed (and illustrated) in Jean-Pierre Petit's Le Topologicon.
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Die Boysche Fläche ist ein geo ...... m aber auch einen Tripelpunkt.
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In geometry, Boy's surface is ...... ve only a single triple point.
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La superficie di Boy è un'imme ...... ene ancora la caratteristica .
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La surface de Boy, du nom de W ...... le bord d'un ruban de Möbius.
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Поверхность Боя — первый извес ...... мерное евклидово пространство.
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ボーイ・サーフェス（ボーイ曲面）は、二次元実射影空間 RP2 ...... のこの業績に敬意を表してこの図形をボーイ・サーフェスと呼ぶ。
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Die Boysche Fläche ist ein geo ...... m aber auch einen Tripelpunkt.
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In geometry, Boy's surface is ...... Pierre Petit's Le Topologicon.
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La superficie di Boy è un'imme ...... ene ancora la caratteristica .
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La surface de Boy, du nom de W ...... a topologie quotient associée.
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Поверхность Боя — первый извес ...... мерное евклидово пространство.
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ボーイ・サーフェス（ボーイ曲面）は、二次元実射影空間 RP2 ...... のこの業績に敬意を表してこの図形をボーイ・サーフェスと呼ぶ。
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Boy's surface
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Boysche Fläche
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Superficie di Boy
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Surface de Boy
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Поверхность Боя
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ボーイ・サーフェス
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