1 “...Operator theory is a fascinating model that includes essential theorems and diverse applications...”

2

3 Subjects: “...partial differential operator theory...”

4 Subjects: “...operator theory...”

5 Subjects: “...operators theory 44A99...”

6 Subjects: “...operator theory...”

7 “... and considers some deep research aspects on integral equations of first and second kind, operator theory applied...”

8 “... is useful for specialists in differential geometry, operator theory, physics, and information geometry...”