Essén, M. R <br/><br/>
The cos [math symbol pi Greek symbol lambda] theorem 
M. R. Essén, including a paper by Christer Borell. -- 
 - Berlin  New York  Springer-Verlag  1975, c1974 
 - v, 111 p  25 cm. -- 
 - Lecture notes in mathematics  v. 467 .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>3540071768(Berlin) 
<br/><br/><label>LCCN: </label>75017547 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Potential theory (Mathematics)<br/>Subharmonic functions<br/>Inequalities (Mathematics)