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Publication year - 2011
Publication title -
mathematische nachrichten
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.913
H-Index - 50
eISSN - 1522-2616
pISSN - 0025-584X
DOI - 10.1002/mana.201190001
Subject(s) - cover (algebra) , citation , domain (mathematical analysis) , picture books , mathematics , cusp (singularity) , combinatorics , computer science , library science , geometry , visual arts , art , mechanical engineering , mathematical analysis , engineering
Cover picture from Cornelia Schneider, Math. Nachr., DOI 10.1002/mana.201010052 (to appear). The figure shows a domain with a cusp. One of the main features is that the indicated dotted curve connecting two points of the domain cannot be surrounded by a croissant‐like subdomain. This in turn causes problems concerning questions of extendability.