abstract = "In this thesis, an algebra is constructed for studying
the dynamics of Mendelian populations. The symbols of
the algebra represent groups of individuals or
populations. The indexed symbol AJi. for example,
represents a population in which two gene loci are
under consideration (the number of loci corresponds to
the number of pairs of indices). The number of
allelomorphs in each locus is completely arbitrary, as
is the recombination value for the loci. The different
components of a population symbol, represented by
fixing the indices at specific values, are numbers
whose values correspond to the fractions of the
population with certain genetic formulae. It is
convenient in some cases to consider as populations
symbols whose components are negative or even complex.
Such symbols cannot, of course, represent an actual
group of individuals and are called unrealisable
populations, but their use sometimes facilitates the
solution of problems.",