Notes on the octonians

  title={Notes on the octonians},
  author={Dietmar A. Salamon and Thomas Walpuski},
In these notes we give an exposition of the structures in linear algebra that underly Donaldson–Thomas theory [2, 3] and calibrated geometry [4, 5]. No claim is made to originality. All the results and ideas described here (except perhaps Theorem 7.4) can be found in the existing literature, notably in the beautiful paper [4] by Harvey and Lawson. Perhaps… CONTINUE READING