Relatively free bands

References

• Gerhard , J.A. and Petrich , M. 1986 . Free bands and free ∗-bands . Glasgow Math. J , 28 : 161 – 179 .
   Google Scholar
• Gerhard , J.A. and Petrich , M. 1988 . Certain characterizations of varieties of bands . Proc. Edinburgh Math. Soc , 31 : 301 – 319 .
   Web of Science ®Google Scholar
• Gerhard , J.A. and Petrich , M. 1989 . Varieties of bands revisited . Proc. London Math. Soc , 58 ( 3 ) : 323 – 350 .
   Google Scholar
• Neto , O. and Sezinando , H. 1996 . Trees, band monoids and formal languages . Semigroup Forum , 52 ( 3 ) : 141 – 155 .
   Web of Science ®Google Scholar
• Petrich M. New bases for band varieties preprint
   Google Scholar
• Siekmann , J. and Szabó , P. 1982 . A noetherian and confluent rewrite system for idem-potent semigroups . Semigroup Forum , 25 ( 3 ) : 83 – 110 .
   Web of Science ®Google Scholar
• Wismath , S.L. 1986 . The lattice of varieties and pseudovarieties of band monoids . Semigroup Forum , 33 ( 3 ) : 187 – 198 .
   Web of Science ®Google Scholar