Shi, Ying-guang Simultaneous Chebyshev approximation. (Chinese) Zbl 0513.41009 Math. Numer. Sin. 5, 60-65 (1983). MSC: 41A28 41A50 × Cite Format Result Cite Review PDF
Shi, Ying-guang Quasi-convex functions and the Chebyshev approximation. (Chinese) Zbl 0515.41030 Math. Numer. Sin. 4, 409-416 (1982). MSC: 41A65 41A50 × Cite Format Result Cite Review PDF
Shi, Ying-guang On a theorem of J. T. Lewis. (English) Zbl 0468.41021 Math. Numer. Sin. 3, 266-267 (1981). MSC: 41A65 41A50 41A29 41A05 × Cite Format Result Cite Review PDF
Shi, Ying-guang L approximation by generalized polynomials having bounded coefficients. (Chinese) Zbl 0453.41006 Math. Numer. Sin. 2, 375-378 (1980). MSC: 41A10 41A65 41A50 × Cite Format Result Cite Review PDF