摘要
This paper deals with the following isoperimetric problem in the plane:Among all regions with prescribed perimeter and covering a given line segment,what is the region that has the greatest area?
This paper deals with the following isoperimetric problem in the plane:Among all regions with prescribed perimeter and covering a given line segment,what is the region that has the greatest area?
基金
the National Natural Science Foundation of China(Grant No.10671066)
the Shanghai Leading Academic Discipline Project(Project No.B407)
partially supported by the National Key Basic Research Project of China(Grant No.2006CB805902)