Given
countries with three representatives each,
committees
are called a cycle if
(i) each committee has
members, one from each country;
(ii) no two committees have the same membership;
(iii) for
, committee
and committee
have no member in common, where
denotes
(iv) if
then committees
and
have at least one member in common.
Is it possible to have a cycle of 1990 committees with 11 countries?



(i) each committee has

(ii) no two committees have the same membership;
(iii) for





(iv) if



Is it possible to have a cycle of 1990 committees with 11 countries?