摘要
<正>
Inthispaper,weusetheordinarydifferentialequationtheoryofBanachspacesandminimaxtheory,andinparticular,therelativemountainpasslemmatostudysemilinearellipticboundaryvalueproblemswithjumpingnonlinearitiesatzeroorinfinity,andgetnewmultiplesolutionsandsign-changingsolutionstheorems,atlastwegetuptosixnontrivialsolutions.
正>
出版日期
2000年01月11日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)