m-dimensional manifold 
is
obtained. If 
is a continuous
function satisfying 
for 
and for all 
then
B. Dacorogna, I. Fonseca, J. Malý, K. Trivisa
The integral representation for the relaxation of a class of energy
functionals where the admissible fields are constrained to remain
on a m-dimensional manifold is
obtained. If is a continuous
function satisfying for
and for all then
where 
is open, bounded, and 
is the tangential quasiconvexification of f at 
belong to the tangent space
to 
at 
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