Abstract.
We prove that the modular symbols appropriately normalized and ordered have a Gaussian distribution for all cofinite subgroups of \({\text{SL}}_{\text{2}} (\mathbb{R}).\) We use spectral deformations to study the poles and the residues of Eisenstein series twisted by power of modular symbols.
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Petridis, Y.N., Risager, M.S. Modular Symbols have a Normal Distribution. Geom. funct. anal. 14, 1013–1043 (2004). https://doi.org/10.1007/s00039-004-0481-8
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DOI: https://doi.org/10.1007/s00039-004-0481-8