3 search results - page 1 / 1 » A note on propositional proof complexity of some Ramsey-type... |
AML
2011
12 years 11 months ago
2011
Any valid Ramsey statement n −→ (k)2 2 can be encoded into a DNF formula RAM(n, k) of size O(nk) and with terms of size k 2 . Let rk be the minimal n for which the statement h...
IPL
2007
13 years 4 months ago
2007
We prove that there is a polynomial time substitution (y1, . . . , yn) := g(x1, . . . , xk) with k << n such that whenever the substitution instance A(g(x1, . . . , xk)) of ...
ACISP
2006
Springer
13 years 10 months ago
2006
Springer
In this paper we are interested in algebraic immunity of several well known highly-nonlinear vectorial Boolean functions (or Sboxes), designed for block and stream ciphers. Unfortu...