Algebraic Equations of All Involucre Conics in the Configuration of the c-Inscribed Equilateral Triangles - Blas Herrera LTTK TEZ xin giới thiệu...
Two conjectures of Victor Thebault linking tetrahedra with quadrics - Blas Herrera We prove two of Thebault's conjectures. The first (1949) links...