例句與造句

1. This was originally observed by Michael Freedman, based on the work of Simon Donaldson and Andrew Casson.
2. Andrew Casson and Gordon defined and proved basic theorems regarding strongly irreducible Heegaard splittings, an important concept in the modernization of Heegaard splitting theory.
3. Upon leaving Harvard, Kuperberg studied at the University of California, Berkeley under Andrew Casson, receiving a Ph . D . in geometric topology and quantum algebra in 1991.
4. Works by Hsiang, Julius Shaneson, C . T . C . Wall, Robion Kirby, Laurent Siebenmann and Andrew Casson lead in the 1960s to the proof of the annulus theorem ( previously known as the annulus conjecture ).
5. An obstruction to the manifold version was formulated by Andrew Casson and Dennis Sullivan in 1967 9 ( originally in the simply-connected case ), using the Rochlin invariant and the cohomology group H 3 ( " M "; "'Z "'/ 2 "'Z "').
6. It's difficult to find andrew casson in a sentence. 用andrew casson造句挺難的