The Siegel Modular Group is the Lattice of Minimal Covolume in the Symplectic Group
Journal of Lie Theory, Volume 35 (2025) no. 3, pp. 527-556
Let $n \geqslant 2$. We prove that, up to conjugation, SP$_{2n}$({\bf Z}) is the unique lattice in SP$_{2n}$({\bf R}) of the smallest covolume.
DOI: 10.5802/jolt.1395
Classification: 22E40, 11E57, 20G30, 51M25
Keywords: Symplectic group, arithmetic group, lattice, covolume, Prasad's volume formula
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     author = {A. Dzambic and K. Holm and R. Koehl},
     title = {The {Siegel} {Modular} {Group} is the {Lattice} of {Minimal} {Covolume} in the {Symplectic} {Group}},
     journal = {Journal of Lie Theory},
     pages = {527--556},
     year = {2025},
     volume = {35},
     number = {3},
     doi = {10.5802/jolt.1395},
     zbl = {08103100},
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A. Dzambic; K. Holm; R. Koehl. The Siegel Modular Group is the Lattice of Minimal Covolume in the Symplectic Group. Journal of Lie Theory, Volume 35 (2025) no. 3, pp. 527-556. doi: 10.5802/jolt.1395

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