Original sentence: In the theory of von Neumann algebras, a part of the mathematical field of functional analysis, Tomita-Takesaki theory is a method for constructing modular automorphisms of von Neumann algebras from the polar decomposition of a certain involution
Edited sentence: In the theory of von Neumann algebras, a part of the mathematical field of functional analysis, Tomita-Takesaki theory (also called Modular theory) is a method for constructing modular automorphisms of von Neumann algebras from the polar decomposition of a certain involution