Operations Research - 1977

Campbell, S. L. (1977). Linear Systems of Differential Equations with Singular Coefficients. SIAM Journal on Mathematical Analysis, 8(6), 1057–1066. https://doi.org/10.1137/0508081

Campbell, S. L. (1977). On continuity of the Moore-Penrose and Drazin generalized inverses. Linear Algebra and Its Applications, 18(1), 53–57. https://doi.org/10.1016/0024-3795(77)90079-9

Campbell, S. L., & Gellar, R. (1977). On asymptotic properties of several classes of operators. Proceedings of the American Mathematical Society, 66(1), 79–84.

Campbell, S. L., & Geller, R. (1977). Linear operators for which T*T and T+T* commute II. Transactions of the American Mathematical Society, 226, 305–319.

Kelley, C. T. (1977). Convolution and H‐equations for operator‐valued functions with applications to neutron transport theory. Journal of Mathematical Physics, 18(4), 764–769. https://doi.org/10.1063/1.523305