… 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 |
...In such cases, it is the policy of "Weite...
The burning of books. In particular, the act or ri...
A battle in 480 BC during the Persian Wars. Thermo...
mixed connective tissue disease, mixed connective ...
…They prey on small live insects. There are about...
A general term for large snakes belonging to the B...
...In the 19th century, Weber, Berlioz, and Meyer...
This shrimp belongs to the family Cranidae of Crus...
… [Okamoto Motoji]. … *Some of the terminology th...
...People saw this situation as a threat to the c...
〘noun〙 (arena) 1. A type of theater in which the a...
A thinker from the Southern Song Dynasty in China...
...It is not difficult to breed. (i) Yellow-strip...
This spider belongs to the Arthropoda phylum, Ara...
Formerly known as Karl-Marx-Stadt (1953-90), Karl-...