Embedding a Latin square with transversal into a projective space
نویسندگان
چکیده
منابع مشابه
Embedding a Latin square with transversal into a projective space
Article history: Received 20 May 2010 Available online xxxx
متن کاملA lower bound for the length of a partial transversal in a Latin square
It is proved that every n×n Latin square has a partial transversal of length at least n−O(log n). The previous papers proving these results [including one by the second author] not only contained an error, but were sloppily written and quite difficult to understand. We have corrected the error and improved the clarity.
متن کاملOn the Length of a Partial Independent Transversal in a Matroidal Latin Square
We suggest and explore a matroidal version of the Brualdi Ryser conjecture about Latin squares. We prove that any n × n matrix, whose rows and Columns are bases of a matroid, has an independent partial transversal of length d2n/3e. We show that for any n, there exists such a matrix with a maximal independent partial transversal of length at most n− 1.
متن کاملPseudo Ricci symmetric real hypersurfaces of a complex projective space
Pseudo Ricci symmetric real hypersurfaces of a complex projective space are classified and it is proved that there are no pseudo Ricci symmetric real hypersurfaces of the complex projective space CPn for which the vector field ξ from the almost contact metric structure (φ, ξ, η, g) is a principal curvature vector field.
متن کاملEmbedding of a 2D Graphene System in Non-Commutative Space
The BFT approach is used to formulate the electronic states in graphene through a non-commutative space in the presence of a constant magnetic field B for the first time. In this regard, we introduce a second class of constrained system, which is not gauge symmetric but by applying BFT method and extending phase space, the second class constraints converts to the first class constraints so th...
متن کاملذخیره 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: Journal of Combinatorial Theory, Series A
سال: 2011
ISSN: 0097-3165
DOI: 10.1016/j.jcta.2011.01.013