This book introduces recently developed ideas and techniques in semigroup theory to
provide a handy reference guide previously unavailable in a single volume. The opening …

JM Howie has shown that the finite monogenic semigroups are absolutely closed. We
provide a new, simple and direct proof of Howie's result. We also show that all the varieties …

Epimorphisms, dominions and seminormal identities Page 1 Semigroup Forum (2010) 80:
219–241 DOI 10.1007/s00233-010-9206-5 RESEARCH ARTICLE Epimorphisms, dominions and …

1. Introduction Page 1 Available online at http://scik.org J. Semigroup Theory Appl. 2017,
2017:1 ISSN: 2051-2937 EPIMORPHICALLY PRESERVED SEMIGROUP IDENTITIES WAJIH …

Epimorphism and heterotypical identities Page 115 Algebra and its Applications Eds. Afzal Beg
and Mohd. Ashraf Copyright c2011 Narosa Publishing House Pvt. Ltd. New Delhi EPIMORPHISM …

1. Introduction Page 1 Available online at http://scik.org J. Semigroup Theory Appl. 1 (2012),
No. 1, 1-28 EPIMORPHISMS AND HETEROTYPICAL IDENTITIES-II WAJIH ASHRAF∗ AND …

Khan and Shah associated two natural numbers with a seminormal identity. Using these
natural numbers, we further enlarge the class of homotypical identities of which both sides …

Khan and Shah associated two natural numbers with a seminormal identity. Using these
natural numbers, we further enlarge the class of heterotypical identities of which both sides …

First and foremost, I would Hke to express my sincere gratitude to my supervisor Dr. NooT
Mohammad Khan for his scholarly guidance, creative supervision and enthusiastic support …

faster af P^tlDSoplj^ Page 1 ON VARIETIES OF SEMIGROUPS DISSERTATION SUBMITTED
IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR TH€ AWARD OF THE DEGREE …