R. Drechsler et al., FAST OFDD-BASED MINIMIZATION OF FIXED POLARITY REED-MULLER EXPRESSIONS, I.E.E.E. transactions on computers, 45(11), 1996, pp. 1294-1299
We present methods to minimize fixed polarity Reed-Muller expressions
(FPRMs), i.e., two-level fixed polarity AND/EXOR canonical representat
ions of Boolean functions, using ordered functional decision diagrams
(OFDDs). We investigate the close relation between both representation
s and use efficient algorithms on OFDDs for exact and heuristic minimi
zation of FPRMs. In contrast to previously published methods, our algo
rithm can also handle circuits with several outputs. Experimental resu
lts on large benchmarks are given to show the efficiency of our approa
ch.