A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990
Consider expanding a set of orthogonal polynomials {gi(x)} as a combination of orthogonal polynomials {pi(x)}. A sufficient condition to ensure that the expansion coefficients are nonnegative is derived. It is shown by counter-example that it is not a necessary condition. © 1970 American Mathematical Society.
A. Gupta, R. Gross, et al.
SPIE Advances in Semiconductors and Superconductors 1990
A.R. Gourlay, G. Kaye, et al.
Proceedings of SPIE 1989
Richard M. Karp, Raymond E. Miller
Journal of Computer and System Sciences
John A. Hoffnagle, William D. Hinsberg, et al.
Microlithography 2003