Embedding partial bipartite directed cycle systems

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Embedding partial bipartite directed cycle systems

A 2k-dicycle is a 2k-cycle of a directed bipartite graph and a 2k-dicycle system of order (m,n) is a triple (X, Y,D), where D is a collection of edge disjoint 2k-dicycles which partitions the edge set of the complete directed bipartite graph Dm,n with parts X and Y . A partial 2k-dicycle system of order (s, t) is a triple (S, T, P ), where P is a collection of edge disjoint 2k-dicycles of Ds,t ...

متن کامل

A small embedding for partial directed 6k-cycle systems

The main result in this paper is that for m == 0 (mod 6) a partial directed m-cycle system of order n can be embedded in a directed m-cycle system of order less than (mn)/2 + m/2 + 2m + 1. For fixed m, this bound is asymptotic in n to (mn) /2 which is approximately one-half of the best known bound of mn + (0 or 1).

متن کامل

A small embedding for large directed even cycle systems

A directed m-cycle system is a collection of directed edges of the form {(XbX2), (X2' X3)(X3, X4), ... , (Xm-l, xm), (xm' xd}, where Xl, X2, X3, ... , Xm are distinct. A partial directed m-cycle system of order n is a pair (8, C), where C is a collection of edge disjoint m-cycles of the complete directed graph Dn with vertex set S. If the cycles in C partition the edge set of Dn we have the def...

متن کامل

A new small embedding for partial 8-cycle systems

The upper bound for embedding a partial 8-cycle system of order n is improved from 4n + c √ n, c > 0, to 4n + 29.

متن کامل

Embedding Partial Steiner Triple Systems

We prove that a partial Steiner triple system 8 of order n can be embedded in a Steiner triple system T of any given admissible order greater than 4w. Furthermore, if G(S), the missing-edge graph of S, has the property that A(G)<ri(n + l)l and \E(G)\ then # can be embedded in a Steiner triple system of order 2n +1, provided that 2w +1 is admissible. We also prove that if there is a partial Stei...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Discrete Mathematics

سال: 2002

ISSN: 0012-365X

DOI: 10.1016/s0012-365x(01)00089-9