login
A030043
Unreduced denominator of volume of best symplectic packing of n balls in 4-dimensional ball.
4
1, 2, 4, 1, 25, 25, 64, 289, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
OFFSET
1,2
COMMENTS
These fractions are not reduced. For the reduced fractions see A125846/A125847. - N. J. A. Sloane, Feb 12 2021
REFERENCES
P. Biran, Symplectic packing in dimension 4, Geom. Funct. Anal. 7(1997), 420-437, MR1466333.
Dusa McDuff and Leonid Polterovich, Symplectic packings and algebraic geometry, Invent. Math. 115 (1994), 405-434.
Schlenk, Felix. "Dusa McDuff and symplectic geometry." arXiv preprint arXiv:2011.03317 (2020).
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
STATUS
approved