In this paper we study finite dimensional associative algebras (with 1) over an algebraically closed field K. An algebra is biserial if every indecomposable projective left or right module P contains two uniserial submodules whose sum is the unique maximal submodule of P and whose intersection is either zero or simple. (A module is uniserial if it has a unique composition series.) An algebra A has tame representation type if its indecomposable modules lie in one-parameter families, see for example [3]. Here we prove the following result.
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