CPC
2000
15 years 3 months ago
2000
CPC
2000
15 years 3 months ago
2000
128
Voted
CPC
2000
15 years 3 months ago
2000
Answering a question of Wilf, we show that if n is sufficiently large, then one cannot cover an n
96
Voted
CPC
2000
15 years 3 months ago
2000
We prove that if an involution is an automorphism of a connected binary matroid M, then there is a hyperplane of M that is invariant under . We also consider extensions of this re...