Assignment:
Qa) Find a two-player coalitional game (N; v), and a bounded set K that is not closed, such that the nucleolus N (N; v; K) is the empty set.
Qb) Find a two-player coalitional game (N; v), and a closed and unbounded set K, such that the nucleolus N (N; v; K) is the empty set.
Provide complete and step by step solution for the question and show calculations and use formulas.