Cone Monotonicity: Structure Theorem, Properties, and Comparisons to Other Notions of Monotonicity

Heather A. Van Dyke, Kevin R. Vixie, Thomas J. Asaki
2013 Abstract and Applied Analysis  
In search of a meaningful 2-dimensional analog to monotonicity, we introduce two new definitions and give examples of and discuss the relationship between these definitions and others that we found in the literature.
doi:10.1155/2013/134751 fatcat:mutqm6p2evh3tmdriac3pd3uve