Showalter, Ralph E. <br/><br/>
Hilbert Space Methods in Partial Differential Equations 
/ by Ralph E. Showalter 
 - New York  Dover Publications  2010 
 - 212p. 
<br/><br/><label>ISBN: </label>9780486474434 
<br/><br/><label>Dewey Class. No.: </label>515.733  / SHO/H