Question: What nationality is Frederick J. Almgren Jr.'s wife?
Sentence (from "Frederick J. Almgren Jr."): He wrote one of the longest papers in mathematics, proving what is now called the Almgren regularity theorem: the singular set of an -dimensional mass-minimizing hypersurface has dimension at most : he also developed the concept of varifold, first defined by L. C. Young in , and proposed them as generalized solutions to Plateau's problem, in order to deal with the problem even when a concept of orientation is missing.
Relevant evidence: No