01114nam a2200301 i 450099100122673970753620020507185604.0930427s1991 uk ||| | eng 0582064783b10818297-39ule_instLE01308986ExLDip.to Matematicaeng515.353AMS 35K20QA379.H48Hess, Peter42357Periodic-parabolic boundary value problems and positivity /Peter HessHarlow :Longman ; New York : John Wiley,1991139 p. ;24 cm.Pitman research notes in mathematics series, ISSN 02693674 ;247Boundary value problemsParabolic differential equations.b1081829723-02-1728-06-02991001226739707536LE013 35K HES11 (1991)12013000003283le013-E0.00-l- 01010.i1092506528-06-02Periodic-parabolic Boundary Value Problems and Positivity349754UNISALENTOle01301-01-93ma -enguk 01