{ "id": "1505.04611", "version": "v1", "published": "2015-05-18T12:39:40.000Z", "updated": "2015-05-18T12:39:40.000Z", "title": "A Generalization of Combinatorial Designs Related to Almost Difference Sets", "authors": [ "Jerod Michel", "Baokun Ding" ], "categories": [ "math.CO" ], "abstract": "In this paper we study a certain generalization of combinatorial designs related to almost difference sets, namely the $t$-adesign, which was coined by Cunsheng Ding in 2015. It is clear that $2$-adesigns are a kind of partially balanced incomplete block design which naturally arise in many combinatorial and statistical problems. We discuss some of their basic properties and give several constructions of $2$-adesigns (some of which correspond to new almost difference sets, and others of which correspond to new almost difference families), as well as two constructions of $3$-adesigns. We also discuss some basic properties of their incidence matrices and codes.", "revisions": [ { "version": "v1", "updated": "2015-05-18T12:39:40.000Z" } ], "analyses": { "keywords": [ "combinatorial designs", "difference sets", "generalization", "basic properties", "partially balanced incomplete block design" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150504611M" } } }