DM
2008
13 years 9 months ago
2008
DM
2008
13 years 9 months ago
2008
DM
2008
13 years 9 months ago
2008
Some important properties of the chromatic polynomial also hold for any polynomial set map satisfying pS(x + y) = TU=S pT (x)pU (y). Using umbral calculus, we give a formula for t...
DM
2008
13 years 9 months ago
2008
DM
2008
13 years 9 months ago
2008
A Skolem sequence is a sequence s1, s2, . . . , s2n (where si A = {1 . . . n}), each si occurs exactly twice in the sequence and the two occurrences are exactly si positions apar...
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
