A structured visual guide to the major mathematical areas and their relationships.
Search by code, branch, topic, subtopic, or a keyword from the descriptions.
This subtopic introduces the core ideas in operator theory in abstract spaces, including foundational concepts, standard methods, and the main questions used to organize the area. Typical uses include building mathematical background, framing related research problems, and supporting applications in neighboring fields where these concepts provide useful structure.
The general theory of graphs of linear operators studies the relationship between an operator and its graph, providing a geometric viewpoint on closed operators.
Used in functional analysis to characterize operators whose domains and ranges are compatible with topological structure.