01277cam a22003014i 4500991001720499707536120521s2012 ne b 001 0 eng d9780124158269b14058960-39ule_instDip.to Matematica e Fisicaeng514.7223AMS 53BLC QA613.619.D73Dragomir, Sorin439634Harmonic vector fields :variational principles and differential geometry /Sorin Dragomir, Domenico PerroneAmsterdam ;Boston :Elsevier,c2012xiv, 508 p. ;24 cmIncludes bibliographical references and indexVector fieldsGeometry, DifferentialPerrone, Domenicoauthorhttp://id.loc.gov/vocabulary/relators/aut474819.b1405896028-01-1421-05-12991001720499707536LE013 53B DRA11 C.1 (2012)C. 112013000215730le013pE116.34-l- 03530.i1543507618-07-12LE013 53B DRA11 C.2 (2012)C. 212013000215747le013pE116.34-l- 02020.i1543508818-07-12Harmonic vector fields1442278UNISALENTOle01321-05-12ma -engne 00