Algebraic Coincidence Periods Of Self – Maps Of A Rational Exterior Space Of Rank 2

Let ƒand g be a self – maps of a rational exterior space . A natural number m is called a minimal coincidence period of maps ƒand g if ƒ^m and g^m have a coincidence point which is not coincidence by any earlier iterates. This paper presents a complete description of the set of algebraic coincidence periods for self - maps of a rational exterior space which has rank 2 .