@Article{JPDE-3-2, author = {}, title = {Local Solvability for a Class of Nonhomogeneous Left Invariant Differential Operators on HR \bigotimes Rk}, journal = {Journal of Partial Differential Equations}, year = {1990}, volume = {3}, number = {2}, pages = {16--26}, abstract = { In this paper we discuss tbe local solvability of the following nonhomogeneous left invariant differential operators on the nilpotent Lie group H_n⊗R^K: P(X, Y, T, Z) = Σ_{|α+β|+ζ+|y|≤m|α+β|+2l=a}a_{αβly}X^αY^βT^lZ^y where X_j, Y_j (j = 1, 2, …, n), T, Z_j(j = l, 2, …, K) are bases of left invariant vector fields on H_n⊗R^K and a_{αβly} are complex constants.}, issn = {2079-732X}, doi = {https://doi.org/1990-JPDE-5795}, url = {https://global-sci.com/article/89025/local-solvability-for-a-class-of-nonhomogeneous-left-invariant-differential-operators-on-hsubrsub-bigotimes-rsupksup} }