1. Agranovich, M.S.: Spectral properties of elliptic pseudodifferential operators on a closed curve Funct. Anal. Appl. 13, 279–281 (1971)
2. Botchway L., Kibiti G., Ruzhansky M.: Difference equations and pseudo-differential operators on $${\mathbb{Z}}^n$$, arXiv:1705.07564
3. Calderón, A.P., Zygmund, A.: On the existence of certain singular integrals. Acta. Math. 88, 85–139 (1952)
4. Cardona, D., Del Corral, C.: The Dixmier trace and the non-commutative residue for multipliers on compact manifolds, submitted. arXiv:1703.07453
5. Cardona, D., Kumar, V.: $$L^p$$-boundedness and $$L^p$$-nuclearity of multilinear pseudo-differential operators on $${\mathbb{Z}}^n$$ and the torus $${\mathbb{T}}^n$$, J. Fourier Anal. Appl. https://doi.org/10.1007/s00041-019-09689-7