Hans Frederick Blichfeldt belongs to the mathematical record as a figure whose results outlasted the problems that prompted them.
The record lists Hans Frederick Blichfeldt as mathematician (1873–1945).
Hans Frederick Blichfeldt was born at Grønbæk Parish in 1873. His recorded nationality is United States. He studied at Stanford University and Leipzig University.
Around the turn of the twentieth century the foundations of mathematics were under open attack, and set theory and logic became urgent questions.
His academic posts were held at Stanford University.
His principal contribution is Blichfeldt's theorem. Mathematics is the one discipline whose results, once proved, are never overturned.
Recognition followed: Knight of the Order of the Dannebrog (1939).
That the work was done from United States matters: mathematical training, institutions and the language of publication have never been evenly distributed.
Hans Frederick Blichfeldt died in 1945, aged 72. The proofs remain, and a proof does not decay - which is the particular permanence mathematics offers.
Achievements
- Knight of the Order of the Dannebrog — 1939
- Notable work: Blichfeldt's theorem
- Held posts at Stanford University



