Many-body quantum theory in condensed matter physics : an introduction / Henrik Bruus, Karsten Flensberg. Bruus, Henrik. Flensberg, Karsten. jt. aut. Many-body problem Textbooks. Quantum theory Textbooks. Condensed matter Textbooks. QC174.17.P7 B78 2004 530.41 22 BRM Includes bibliographical references and index. Oxford ; New York : Oxford University Press, c2004. c2004. 2004 Text xix, 435 p. : eng Oxford graduate texts