Selected Publications

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2002
Araújo, João. "Normal semigroups of endomorphisms of proper independence algebras are idempotent generated." Proc. Edinb. Math. Soc. (2). 45 (2002): 205-217. AbstractWebsite
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Araújo, João. "On idempotent generated semigroups." Semigroup Forum. 65 (2002): 138-140. AbstractWebsite
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2003
Araújo, João, and Janusz Konieczny. "Automorphism groups of centralizers of idempotents." J. Algebra. 269 (2003): 227-239. AbstractWebsite
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Araújo, João. "Idempotent generated endomorphisms of an independence algebra." Semigroup Forum. 67 (2003): 464-467. AbstractWebsite
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Araújo, J., J. D. Mitchell, and N. Silva. "On generating countable sets of endomorphisms." Algebra Universalis. 50 (2003): 61-67. AbstractWebsite
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2005
Araújo, J., and J. D. Mitchell. "An elementary proof that every singular matrix is a product of idempotent matrices." Amer. Math. Monthly. 112 (2005): 641-645. AbstractWebsite
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2007
Araújo, João, and Janusz Konieczny. "Automorphisms of endomorphism monoids of relatively free bands." Proc. Edinb. Math. Soc. (2). 50 (2007): 1-21. AbstractWebsite
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Araújo, João, and Janusz Konieczny. "A method of finding automorphism groups of endomorphism monoids of relational systems." Discrete Math.. 307 (2007): 1609-1620. AbstractWebsite
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Araújo, J., and J. D. Mitchell. "Relative ranks in the monoid of endomorphisms of an independence algebra." Monatsh. Math.. 151 (2007): 1-10. AbstractWebsite
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2009
Araújo, João, and Friedrich Wehrung. "Embedding properties of endomorphism semigroups." Fund. Math.. 202 (2009): 125-146. AbstractWebsite
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Araújo, João, and Janusz Konieczny. "General theorems on automorphisms of semigroups and their applications." J. Aust. Math. Soc.. 87 (2009): 1-17. AbstractWebsite
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2010
Araújo, João, Edward Dobson, and Janusz Konieczny. "Automorphisms of endomorphism semigroups of reflexive digraphs." Math. Nachr.. 283 (2010): 939-964. AbstractWebsite
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Araújo, J., P. V. Bünau, J. D. Mitchell, and M. Neunhöffer. "Computing automorphisms of semigroups." J. Symbolic Comput.. 45 (2010): 373-392. AbstractWebsite
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2011
Araújo, João, Vítor H. Fernandes, Manuel M. Jesus, Victor Maltcev, and James D. Mitchell. "Automorphisms of partial endomorphism semigroups." Publ. Math. Debrecen. 79 (2011): 23-39. AbstractWebsite
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Araújo, João, and Michael Kinyon. "An elegant 3-basis for inverse semigroups." Semigroup Forum. 82 (2011): 319-323. AbstractWebsite
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Araújo, J., J. D. Mitchell, and Csaba Schneider. "Groups that together with any transformation generate regular semigroups for idempotent generated semigroups." J. Algebra. 343 (2011): 93-106. AbstractWebsite
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Araújo, João, and Michael Kinyon. "Independent axiom systems for nearlattices." Czechoslovak Math. J.. 61(136) (2011): 975-992. AbstractWebsite
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Araújo, João, Michael Kinyon, and Janusz Konieczny. "Minimal paths in the commuting graphs of semigroups." European J. Combin.. 32 (2011): 178-197. AbstractWebsite
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Araújo, João, Mário Edmundo, and Steven Givant. "{$v^\ast$}-algebras, independence algebras and logic." Internat. J. Algebra Comput.. 21 (2011): 1237-1257. AbstractWebsite
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2013
Araújo, João, Michael Kinyon, and António Malheiro. "A characterization of adequate semigroups by forbidden subsemigroups." Proc. Roy. Soc. Edinburgh Sect. A. 143 (2013): 1115-1122. AbstractWebsite
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Araújo, João, Peter J. Cameron, James D. Mitchell, and Max Neunhöffer. "The classification of normalizing groups." J. Algebra. 373 (2013): 481-490. AbstractWebsite
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Araújo, João, Wolfram Bentz, and Peter J. Cameron. "Groups synchronizing a transformation of non-uniform kernel." Theoret. Comput. Sci.. 498 (2013): 1-9. AbstractWebsite
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2014
Araújo, João, Janusz Konieczny, and António Malheiro. "Conjugation in semigroups." J. Algebra. 403 (2014): 93-134. AbstractWebsite
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Araújo, João, and Michael Kinyon. "Inverse semigroups with idempotent-fixing automorphisms." Semigroup Forum. 89 (2014): 469-474. AbstractWebsite
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Araújo, João, Wolfram Bentz, and Janusz Konieczny. "The largest subsemilattices of the endomorphism monoid of an independence algebra." Linear Algebra Appl.. 458 (2014): 60-79. AbstractWebsite
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