Płonka‐Type Sums Over Free Products
B. J. Gardner · Mathematische Nachrichten · 1989
Abstract A generalization of PŁONKA sums is introduced wherein instead of the disjoint union of underlying sets of algebras, the free product of the reducts (of some type) of the algebras is used as underlying set for the new algebra. Preservation of identities is discussed and a number of examples are presented.