DM
2008
13 years 10 months ago
2008
DM
2008
13 years 10 months ago
2008
DM
2008
13 years 10 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 10 months ago
2008
DM
2008
13 years 10 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 10 months ago
2010
DM
2010
13 years 10 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 10 months ago
2010
DM
2010
13 years 10 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 10 months ago
2010
