I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
Paper
Extending semilattices is hard
Abstract
We show that the semilattice extension problem raised by Arbib and Manes in [2] is NP-hard, implying that no simple solution is likely to be forthcoming. © 1983 Birkhäuser Verlag.
Related
William Hinsberg, Joy Cheng, et al.
SPIE Advanced Lithography 2010
Yi Zhou, Parikshit Ram, et al.
ICLR 2023
Conference paper
Optimization of real phase-mask performance
F.M. Schellenberg, M. Levenson, et al.
BACUS Symposium on Photomask Technology and Management 1991