On functions which preserve the class of Stieltjes matrices
- Charles A. Micchelli
- R. Willoughby
- 1979
- Linear Algebra and Its Applications
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14 results for Ralph A. Willoughby
The inverse M-matrix problem
- R. Willoughby
- 1977
- Linear Algebra and Its Applications
On the numerical integration of a symmetric system of difference-differential equations of neutral type
- R.K Brayton
- R.A Willoughby
- 1967
- J. Math. Anal. Appl.
An Analysis of the Effect of Component Tolerances on the Amplification of the Balanced-Pair Tunnel-Diode Circuit
- R. Brayton
- R. Willoughby
- 1963
- IEEE Transactions on Electronic Computers