20 citations · 77 across the 21 of their papers we have counts for
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math.DG2014★ 1 cited
Natural operations on differential forms
J. Navarro, J. B. Sancho
We prove that the only natural operations between differential forms are those obtained using linear combinations, the exterior product and the exterior differential. Our result ge…
math.DG2014★ 3 cited
Peetre-Slovák's theorem revisited
J. Navarro, J. B. Sancho
In 1960, J. Peetre proved the finiteness of the order of linear local operators. Later on, J. Slovák vastly generalized this theorem, proving the finiteness of the order of a broad…