Multi-focal tensors as invariant differential forms

James Mathews

For each relative $\mathrm{GL}(V)$-invariant tensor $I\in {\Lambda }^{p_1+1}{V}^{\vee }\otimes ..\otimes {\Lambda }^{p_n+1}{V}^{\vee }$ we construct a $\mathrm{GL}(V)$-invariant weighted diff…