This function returns the series connection of two given matroids M and N (cf. Oxley, Section 7.1).
It is always assumed that the common basepoint of M and N is the first element in the respective ground sets, i.e. the element with index 0. (To form a series connection using a different basepoint, one can first relabel M and/or N.)
This method includes series extensions as a special case: a series extension of M is a series connection of M with U(1,2).



The object seriesConnection is a method function.