Matchings in infinite graphs

Ron Aharoni
1988 Journal of combinatorial theory. Series B (Print)  
A general criterion is proved for a graph of any cardinality to possess a perfect matching. The criterion is used to prove an extension of Tutte's l-factor theorem for general graphs.
doi:10.1016/0095-8956(88)90098-6 fatcat:u6k7jpm6y5futdpeaze27eljyq