منابع مشابه
Sophie Racine
The first [4+2]-annulation between aminocyclobutanes and aldehydes to access tetrahydropyranyl amines is reported. With phthalimido cyclobutane dicarboxylates and aromatic aldehydes, tetrahydropyrans were obtained in 53-92% yield and 3:117:1 dr using scandium triflate or iron trichloride as catalyst. The use of thymineor fluorouracilsubstituted cyclobutanes gave direct access to six-membered ri...
متن کاملLarge Sophie Germain primes
If P is a prime and 2P+1 is also prime, then P is a Sophie Germain prime. In this article several new Sophie Germain primes are reported, which are the largest known at this time. The search method and the expected search times are discussed.
متن کاملSophie ’ s Diary
Can a ctional teenage diary of the mathematician Sophie Germain have dramatic and captivating appeal to audiences ranging from curious teenagers to professional mathematicians? The answer lies in the delicate balance between what we do and dont know about her real life, along with the extraordinary historical and mathematical circumstances that coalesced with her stranger-than- ction initiati...
متن کاملControl Complexity of Schulze Voting
Schulze voting is a recently introduced voting system enjoying unusual popularity and a high degree of real-world use, with users including the Wikimedia foundation, several branches of the Pirate Party, and MTV. It is a Condorcet voting system that determines the winners of an election using information about paths in a graph representation of the election. We resolve the complexity of many el...
متن کاملThe Schulze Method of Voting
In recent years, the Pirate Party of Sweden, the Wikimedia Foundation, the Debian project, the Gentoo project, and many other private organizations adopted a new single-winner election method for internal elections and referendums. In this paper, we will introduce this method, demonstrate that it satisfies e.g. resolvability, Condorcet, Schwartz, Smith-IIA, Pareto, reversal symmetry, monotonici...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Hommes & migrations
سال: 2012
ISSN: 1142-852X,2262-3353
DOI: 10.4000/hommesmigrations.1531