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Geometry of division rings

open access: yes, 2022
We prove an analog of Belyi's theorem for the algebraic surfaces. Namely, any non-singular algebraic surface can be defined over a number field if and only it covers the complex projective plane with ramification at three knotted two-dimensional spheres.
openaire   +2 more sources

ON QUASI-GALOIS EXTENSIONS OF DIVISION RINGS [PDF]

open access: bronze, 1963
Takasi Nagahara, Hisao Tominaga
openalex   +1 more source

On the zeros of polynomials over division rings [PDF]

open access: bronze, 1965
Basil Gordon, T. S. Motzkin
openalex   +1 more source

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