Popov, G. S.; Shubin, M. A. A complete asymptotic expansion of the spectral function for second order elliptic operators in \(R^ n\). (Russian) Zbl 0533.35073 Usp. Mat. Nauk 38, No. 1(229), 187-188 (1983). MSC: 35P20 35J15 58J50 × Cite Format Result Cite Review PDF
Duzhin, S. V. The C-spectral sequence of the manifold \(J^ 1\)M. (Russian) Zbl 0521.58003 Usp. Mat. Nauk 38, No. 1(229), 165-166 (1983). MSC: 58A20 55T99 × Cite Format Result Cite Review PDF