Numerical integration of a differential-difference equation with a decreasing time-lag

by Richard Ernest Bellman, J. D. Buell, Robert E. Kalaba

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Systems with variable time-lags occur frequently in biology; the common cause is variable flow rates. Although little is known concerning the effects of these variable lags, this Memorandum demonstrates how some differential-difference equations with variable time-lags can be reduced to a system of differential equations with known initial conditions. These can then be studied with ease. 16 pp.

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