BOJARSKI, B.; IHNATSYEVA, L.; JUHA KINNUNEN, J. K. How to Recognize Polynomials in Higher Order Sobolev Spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 112, n. 2, p. 161–181, 2013. DOI: 10.7146/math.scand.a-15239. Disponível em: https://www.mscand.dk/article/view/15239. Acesso em: 23 nov. 2024.