“…Entangled multilinear singular integral forms have been studied by several authors over the last ten years; see the papers by Kovač [12], [13], Kovač and Thiele [16], Durcik [3], [4], and Durcik and Thiele [11]. They recently found applications in ergodic theory [14], [8], in arithmetic combinatorics [6], [7], to stochastic integration [15], and within the harmonic analysis itself [9], [10]. Therefore, it would be useful to have a reasonably general theory establishing (or characterizing) L p bounds for these objects.…”