Composition theorems for difference families and regular planes
نویسندگان
چکیده
منابع مشابه
Regular Hjelmslev Planes . Ii
In this paper we introduce the notion of an «-partition for a Hjelmslev-matrix (//-matrix). This allows us to prove a new composition theorem for //-matrices. We obtain the existence of (/, r)//-matrices and hence of regular (/, ry-H-phaes for infinitely many series of invariants which were not yet known. In fact, many of these invariants were not even known to occur as the invariants of any //...
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ژورنال
عنوان ژورنال: Discrete Mathematics
سال: 1978
ISSN: 0012-365X
DOI: 10.1016/0012-365x(78)90113-9