Donald Samuels, Ian Stobert
SPIE Photomask Technology + EUV Lithography 2007
An infinite tree-generating “q-algorithm” is defined, which if executed would enumerate all odd perfect numbers (opn’s). A truncated execution shows that any opn has either some component pa > 1018, with a even, or no divisor < 7; hence any opn must be > 1036. © 1973, American Mathematical Society.
Donald Samuels, Ian Stobert
SPIE Photomask Technology + EUV Lithography 2007
Martin C. Gutzwiller
Physica D: Nonlinear Phenomena
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
W.C. Tang, H. Rosen, et al.
SPIE Optics, Electro-Optics, and Laser Applications in Science and Engineering 1991