which scientist is known for the kolmogorov–arnold–moser theorem and the arnold's cat map ?
select distinct var_uri where brack_open var_uri dbo_knownFor dbr_Kolmogorov–Arnold–Moser_theorem sep_dot var_uri rdf_type dbo_Scientist sep_dot var_uri dbo_knownFor dbr_Arnold's_cat_map sep_dot brack_close