Wavefront and caustic surfaces of refractive laser beam shaper
David L. Shealy, John A. Hoffnagle
SPIE Optical Engineering + Applications 2007
Switching networks of the type used in telephone exchanges are studied, with emphasis on a particular class of networks possessing great structural symmetry. This class contains rearrangeable networks carrying N calls with roughly 6N log3 N contacts, and non-blocking networks with roughly 16N(log5 N)2 contacts; these results are the best obtainable by the methods used. We also show, by an impractical argument, that there are non-blocking networks with roughly 90N log3 N contacts. © 1978.
David L. Shealy, John A. Hoffnagle
SPIE Optical Engineering + Applications 2007
R.A. Brualdi, A.J. Hoffman
Linear Algebra and Its Applications
Satoshi Hada
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Zhihua Xiong, Yixin Xu, et al.
International Journal of Modelling, Identification and Control