DM
2010
13 years 5 months ago
2010
An octagon quadrangle is the graph consisting of an 8-cycle (x1, x2, ..., x8) with two additional chords: the edges {x1, x4} and {x5, x8}. An octagon quadrangle system of order v ...
DM
2010
13 years 8 months ago
2010
DM
2010
13 years 8 months ago
2010
A dodecagon quadrangle is the graph consisting of two cycles: a 12-cycle (x1, x2, ..., x12) and a 4-cycle (x1, x4, x7, x10). A dodecagon quadrangle system of order n and index [D...
DM
2010
13 years 8 months ago
2010
DM
2010
13 years 8 months ago
2010
Suppose is a dual polar space of rank n and H is a hyperplane of . Cardinali, De Bruyn and Pasini have already shown that if n 4 and the line size is greater than or equal to fo...
DM
2010
13 years 9 months ago
2010
DM
2010
13 years 9 months ago
2010
We show that for every x1, . . . , xn, y1, . . . , yn ∈ S1 there exists i ∈ {1, . . . , n} such that n k=1 d(xi, xk) ≤ n k=1 d(xi, yk), where S1 is the unit circle and d is ...
DM
2010
13 years 9 months ago
2010
DM
2010
13 years 9 months ago
2010
We determine all hyperplanes of the dual polar space DQ−(7, K) which arise from embedding. This extends one of the results of [5] to the infinite case.
DM
2010
13 years 9 months ago
2010
