@article{oai:repository.dl.itc.u-tokyo.ac.jp:00053947,
 author = {Okada, Mao},
 issue = {1},
 journal = {Journal of Mathematical Sciences The University of Tokyo},
 month = {Mar},
 pages = {15--53},
 title = {Local Rigidity of Certain Actions of Nilpotent-by-Cyclic Groups on the Sphere},
 volume = {26},
 year = {2019}
}