https://www.cqvip.com/doc/journal/00854JP1MNCG6JPV6PCG6JP1MPDO6?sign=eb90392925341346e9fc77854b0f915059805605f7e22786a675e8e793f38eb2&expireTime=1791843146941&resourceId=00854JP1MNCG6JPV6PCG6JP1MPDO6&type=1
NEUMANN BOUNDARY VALUE PROBLEMS FOR LOWER SEMI-CONTINUOUS NON-CONVEX DIFFERENTIAL INCLUSIONS WITH...
Using a combination of upper and lower solutions method with the topological degree approach, we establish the existence of solutions that satisfy the Neumann...
boundary value problemslower semi continuous