We shall prove that f1=x2+y2+7z2 represents all eligible numbers congruent to 2 mod 3 except 14×72k which was conjectured by Kanplansky. Our method is to use m
It is proved that any harmonic map φ :Ω→Sp(N) from a simply connected domain ΩR2∪{∞} into the symplectic group Sp(N)U(2N) with finite uniton number ca
Fullerene derivatives have exhibited fascinating properties in biological systems. Several antioxidative hindered phenol units were connected to C60 called radi