@inproceedings{v.2008equivariant,
title={EQUIVARIANT AND FRACTIONAL INDEX OF PROJECTIVE ELLIPTIC OPERATORS},
author={V. Mathai, R.B. Melrose, and I.M. Singer},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160909105433668049714},
booktitle={Journal of Differential Geometry},
volume={78},
number={3},
pages={465-473},
year={2008},
}
V. Mathai, R.B. Melrose, and I.M. Singer. EQUIVARIANT AND FRACTIONAL INDEX OF PROJECTIVE ELLIPTIC OPERATORS. 2008. Vol. 78. In Journal of Differential Geometry. pp.465-473. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160909105433668049714.