$\mathfrak K$-families and CPD-H-extendable families
نویسندگان
چکیده
منابع مشابه
Extreme k-families
Let P be a poset. A subset A of P is a k-family ii A contains no (k+1)-element chain. For i 1, let A i be the set of elements of A at depth i?1 in A. The k-families of P can be ordered by deening A B ii for all i, A i is included in the order ideal generated by B i. This paper examines minimal r-element k-families, deened as k-families A such that A = r and for every B < A, B < r. Minimal k-fam...
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J. Algebraic Geom. 7 (1998), no. 1, 183–193. Richard E. Borcherds † Mathematics department, Evans Hall, 3840, UC Berkeley, CA 94720-3840 D.P.M.M.S., 16 Mill Lane, Cambridge CB2 1SB, UK email: [email protected] Ludmil Katzarkov M.S.R.I., 1000 Centennial Drive, Berkeley, CA 94720 Department of Mathematics, UC Irvine, Irvine, CA 92697-3875 email: [email protected] Tony Pantev ‡ Department of ...
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ژورنال
عنوان ژورنال: Rocky Mountain Journal of Mathematics
سال: 2017
ISSN: 0035-7596
DOI: 10.1216/rmj-2017-47-3-789