HUDSON, SM. (1990). POLYNOMIAL-APPROXIMATION IN SOBOLEV SPACES
.
INDIANA UNIVERSITY MATHEMATICS JOURNAL, 39(1), 199-228. 10.1512/iumj.1990.39.39012
HUDSON, SM. (1990). POLYNOMIAL-APPROXIMATION IN SOBOLEV SPACES
. INDIANA UNIVERSITY MATHEMATICS JOURNAL, 39(1), 199-228. 10.1512/iumj.1990.39.39012