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Dedicated to the memory of A.R.’s mother Izabella B. Rapinchuk
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Prasad, G., Rapinchuk, A.S. Weakly commensurable arithmetic groups and isospectral locally symmetric spaces. Publ.math.IHES 109, 113–184 (2009). https://doi.org/10.1007/s10240-009-0019-6
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DOI: https://doi.org/10.1007/s10240-009-0019-6