Shvartsman, Pavel Extension criteria for homogeneous Sobolev spaces of functions of one variable. (English) Zbl 1471.46035 Rev. Mat. Iberoam. 37, No. 1, 361-414 (2021). MSC: 46E35 × Cite Format Result Cite Review PDF Full Text: DOI arXiv
Baumeister, J.; Schumaker, L. L. Nonlinear classes of splines and variational problems. (English) Zbl 0338.41005 J. Approximation Theory 18, 63-73 (1976). MSC: 41A05 41A50 41A15 × Cite Format Result Cite Review PDF Full Text: DOI
Chui, C. K.; Smith, P. W.; Ward, J. D. Limits of \(H^{k,p}\)-splines. (English) Zbl 0302.41008 Bull. Am. Math. Soc. 81, 563-565 (1975). MSC: 41A15 41A05 46B10 × Cite Format Result Cite Review PDF Full Text: DOI