Rosales, J.C.  <br/><br/>
Numerical semigroups 

 - New York:  Springer,  2009 
 - ix;181p.  hb;  24 cm 
 - Developments in Mathematics:1389-2177; Vol.20  .
<br/><br/><label>ISBN: </label>9781441901590 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Group Theory and Generalizations.<br/>Mathematics<br/>Semigroups<br/>Group Theory.   <br/>Ordered Algebraic Structures.         <br/>Number Theory.  <br/>Order, Lattices, Ordered Algebraic Structures<br/>General Algebraic Systems.<br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>512.27 ROS