-- mention approximation of permanent
-- mention \pi[x...y]
-
-Notation:
-
-- use X+e, X-e for general sets?
-- \O(...) as a set?
-- G has to be connected, so m=O(n)
-- impedance mismatch in terminology: contraction of G along e vs. contraction of e.
-- use \delta(X) notation
-- unify use of n(G) vs. n
-- use calligraphic letters from ams?
+- JN: 4.5.1: neslo by preci isolovat nejaky vlstnosti restriction matrices
+ tak aby byl speedup? Staci napr predpokladat 4.5.2 (jako to postulovat)
+ co je to vlastne za matice co splnuji 4.5.2
+- JN: bounded-degree restriction graphs; would it imply general speedup?
+
+Typography:
+
+- formatting of multi-line \algin, \algout