The book deals with linear time-invariant delay-differential equations
with commensurated point delays in a control-theoretic context. The aim
is to show that with a suitable algebraic setting a behavioral theory
for dynamical systems described by such equations can be developed. The
central object is an operator algebra which turns out to be an
elementary divisor domain and thus provides the main tool for
investigating the corresponding matrix equations. The book also reports
the results obtained so far for delay-differential systems with
noncommensurate delays. Moreover, whenever possible it points out
similarities and differences to the behavioral theory of
multidimensional systems, which is based on a great deal of algebraic
structure itself. The presentation is introductory and self-contained.
It should also be accessible to readers with no background in
delay-differential equations or behavioral systems theory. The text
should interest researchers and graduate students.