Media type: E-Article Title: Best approximation of functions on the ball on the weighted Sobolev space equipped with a Gaussian measure Contributor: Wang, Heping; Zhai, Xuebo Published: Elsevier BV, 2010 Published in: Journal of Approximation Theory, 162 (2010) 6, Seite 1160-1177 Language: English DOI: 10.1016/j.jat.2009.12.004 ISSN: 0021-9045 Origination: Footnote: Access State: Open Access