Krasnosel'skii-type characterizations fo
✍
J. Cel
📂
Article
📅
1991
🏛
Springer
🌐
English
⚖ 841 KB
Three combinatorial criteria for cones involving the concepts of R-visibility and clear R-visibility introduced for sets in Euclidean space are established. They are direct analogues of Krasnosel'skii-type theorems existing for starshaped sets.