FUNCTION: rstartsets - the poset of start sets induced from minimal chain sequences

CALLING SEQUENCE:
rstartsets(p,s)
rstartsets(p,s,m)

PARAMETERS:
p - a bound poset algebra
s - a positive integer <= p[1] (the number of points of p)
m - an optional argument evaluating to a name

SYNOPSIS:

• rstartsets determines the poset of s-start sets induced by minimal chain sequences starting in the point s of the bound poset algebra p.

• The poset structure will be returned as value of the function.

• A list of the s-start sets themselves may be returned via the optional parameter m.

EXAMPLES:

> p:= critical_alge(7,14);

> q:=rstartsets(p,2,'m');

> print(m);

> h:=convert(m,list);

> drwpst(q,h);