Abstract In this note we study differential equations for classical blocks with heavy and light operators. We present ODEs for the 4-pt blocks, generalizing the ODE for the 4-pt identity block, found by Fitzpatrick et al. (JHEP 05:069, https://doi.org/10.1007/JHEP05(2016)069 . arXiv:1510.00014 , 2016).
Mikhail Pavlov (Sat,) studied this question.
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