National Natural Science Foundation of China (60174013); Research Foundation for Doctoral Program of Higher Education (20020027013); Science and Technology Key Project Foundation of Ministry of Education (03184) ; Major State Basic Research Development Program of China (2002CB312200)
Inclines are the additively idempotent semirings in which products are less than or equal to either factor. In this paper, some necessary and sufficient conditions for a matrix over L to be invertible are given, where...