Approximation of Infinitely Differentiable Functions in Unbounded Convex Domains by Polynomials in Weighted Spaces
1979 ◽
Vol 29
(2)
◽
pp. 199-213
◽
1971 ◽
Vol 24
(1)
◽
pp. 39-51
◽
1974 ◽
pp. 94-118