E11 and the embedding tensor

Abstract

We show how, using different decompositions of E11, one can calculate the representations under the duality group of the so-called ''de-form'' potentials. Evidence is presented that these potentials are in one-to-one correspondence to the embedding tensors that classify the gaugings of all maximal gauged supergravities. We supply the computer program underlying our calculations. © SISSA 2007.