Murasugi sum
A maneuver in bullfighting in which a bullfighter tries to get a bull's attention by manipulating his cape.
In the manner of a mirror reflection; reversed.
simple past tense and past participle of upclock
The union of a finite sequence of surfaces taken over a disk common to every adjacent pair of the sequence, such that the boundary of the disk comprises some even number of closed arcs, disjoint except at their endpoints, which are alternatingly subarcs of the two surfaces' boundaries.
研究者は、2つのセイフェルト面を共通の円盤で貼り合わせて得られる曲面の合併が、元の結び目と同等の境界を持つ新しい曲面を生じることを示した。
アカウントを持っていませんか？ 新規登録
アカウントを持っていますか？ ログイン
DiQt（ディクト）
無料
★★★★★★★★★★
