@inproceedings{CTT100884168,
  author = {Mitsuhiro Nishijima and Kazuhide Nakata},
  title = {Approximation Hierarchies for Copositive Cone over Symmetric Cone and Their Comparison},
  booktitle = {},
  year = 2022,
}

@inproceedings{CTT100884169,
  author = {Mitsuhiro Nishijima and Kazuhide Nakata},
  title = {Generalization of Doubly Nonnegative Cone: Focusing on Inner-Approximation for Generalized Copositive Cone},
  booktitle = {},
  year = 2022,
}

@inproceedings{CTT100867979,
  author = {西島光洋 and 中田和秀},
  title = {一般化共正値錐に対する内側近似階層から着想を得た一般化二重非負錐の提案、},
  booktitle = {},
  year = 2022,
}