Generator Coalgebras are not Necessarily Quasi-coFrobenius
نویسندگان
چکیده
منابع مشابه
Duals of quasi-3 designs are not necessarily quasi-3
In the early 1980s Dan Hughes wrote two papers on semi-symmetric 3-designs, which are closely related to quasi-3 designs. In 1973 Peter Cameron asked whether the dual design of any quasi-3 design must also be quasi-3. In this article we answer that question. We give some general constructions of quasi-3 designs which enable us to give the answer. The answer is no.
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ژورنال
عنوان ژورنال: Algebras and Representation Theory
سال: 2010
ISSN: 1386-923X,1572-9079
DOI: 10.1007/s10468-010-9218-6