… Towards the end of the 19th century, E. Gehry, F. Klein, E. Beltrami, H. Poincaré and others attempted to create models of non-Euclidean geometry within Euclidean geometry. For example, the model described by Poincaré in Science and Hypothesis (1902) is as follows: Take a straight line l on a plane, and let H be the half-plane above l , and prepare the following pseudo-terms: … *Some of the terminology explanations that refer to "Science and Hypothesis" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 19世紀の終りころには,非ユークリッド幾何学のモデルをユークリッド幾何学の中に作るという仕事がE.ゲーリー,F.クライン,E.ベルトラミ,H.ポアンカレらによってなされた。例えば,ポアンカレが《科学と仮説》(1902)に記述しているモデルは次のようである。平面上に直線lをとり,lの上側にある半平面をHとして,次の擬用語を用意する。… ※「《科学と仮説》」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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