Template:Selected anniversaries/July 27: Difference between revisions

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||1999: Aleksandr Danilovich Aleksandrov dies ... mathematician, physicist, and mountaineer.
||1999: Aleksandr Danilovich Aleksandrov dies ... mathematician, physicist, and mountaineer.
||2011:  First Earth trojan asteroid discovered from WISE data ... Wide-field Infrared Survey Explorer (WISE) launched ... NASA infrared-wavelength astronomical space telescope launched in December 2009, and placed in hibernation in February 2011.It was re-activated in 2013. WISE discovered thousands of minor planets and numerous star clusters. Its observations also supported the discovery of the first Y Dwarf and Earth trojan asteroid. Pic.


||2015: John William Scott "Ian" Cassels dies ... mathematician ... writing a series of papers connecting the Selmer group with Galois cohomology and laying some of the foundations of the modern theory of infinite descent[citation needed]. His best-known single result may be the proof that the Tate-Shafarevich group, if it is finite, must have order that is a square; the proof being by construction of an alternating form. Pic: http://www.learn-math.info/mathematicians/historyDetail.htm?id=Cassels&menuH=wiki
||2015: John William Scott "Ian" Cassels dies ... mathematician ... writing a series of papers connecting the Selmer group with Galois cohomology and laying some of the foundations of the modern theory of infinite descent[citation needed]. His best-known single result may be the proof that the Tate-Shafarevich group, if it is finite, must have order that is a square; the proof being by construction of an alternating form. Pic: http://www.learn-math.info/mathematicians/historyDetail.htm?id=Cassels&menuH=wiki

Revision as of 07:38, 8 October 2018