Electronic Research Announcements in Mathematical Sciences: latest papers http://www.aimsciences.org/test_aims/journals/rss.jsp?journalID=14 Latest articles for selected journal http://www.aimsciences.org/test_aims/journals/displayPaper.jsp?paperID=13784 Desingularization of surface maps http://www.aimsciences.org/test_aims/journals/displayPaper.jsp?paperID=13784 Erica Clay, Boris Hasselblatt and Enrique R. Pujals Wed, 1 Feb 2017 08:00:00 GMT http://www.aimsciences.org/test_aims/journals/displayPaper.jsp?paperID=13882 Equational theories of unstable involution semigroups http://www.aimsciences.org/test_aims/journals/displayPaper.jsp?paperID=13882 unstable in the sense that the varieties they generate contain semilattices with nontrivial involution. Specifically, it is shown that the equational theory of an unstable involution semigroup is not finitely axiomatizable whenever the equational theory of its semigroup reduct satisfies the same property. Consequently, many results on equational properties of semigroups can be converted into results applicable to involution semigroups. ]]> Edmond W. H. Lee Wed, 1 Feb 2017 08:00:00 GMT http://www.aimsciences.org/test_aims/journals/displayPaper.jsp?paperID=13952 The orbifold Langer-Miyaoka-Yau inequality and Hirzebruch-type inequalities http://www.aimsciences.org/test_aims/journals/displayPaper.jsp?paperID=13952 Piotr Pokora Wed, 1 Feb 2017 08:00:00 GMT