returns the core nodes of the community . see sectio 3 http : / / arxiv.org/abs/0804.4356v1 concode_field_sep Double _memberStability concode_elem_sep Set<V> _members concode_elem_sep BigInteger _evolTrace concode_elem_sep long _fwdTimelineLen concode_elem_sep int count_ concode_elem_sep Set<Community<V,E>> _predList concode_elem_sep Set<Community<V,E>> _succList concode_elem_sep Set<V> _pastMembers concode_elem_sep List<V> _core concode_elem_sep int ID concode_elem_sep Community<V,E> _mainPred concode_elem_sep long _bckwdTimelineLen concode_elem_sep Community<V,E> _mainTimelineFirst concode_field_sep long getAge concode_elem_sep boolean isTimelineFirst concode_elem_sep boolean isTimelineLast concode_elem_sep Double getMemberStability concode_elem_sep long getBckwdTimelineLen concode_elem_sep long getEvolTrc concode_elem_sep BigInteger getEvolTrace concode_elem_sep Set<V> getCurrMembers concode_elem_sep long getTotalTimeLineLen concode_elem_sep void addPredecessor concode_elem_sep void setMemberStability concode_elem_sep long getFwdTimelineLen concode_elem_sep Community<V,E> getMainPred concode_elem_sep int count concode_elem_sep void addSuccessor concode_elem_sep BigInteger findEvolTrace concode_elem_sep boolean isSameDegComm concode_elem_sep int getID concode_elem_sep Double getAvgMemberStability concode_elem_sep int getSize concode_elem_sep int[] calculateNodCentrality concode_elem_sep Set<V> getPastMembers concode_elem_sep List<V> getCommunityCores concode_elem_sep long findFwdTimelineLen concode_elem_sep String toString concode_elem_sep Community<V,E> getTimelineFirst concode_elem_sep Set<Community<V,E>> getPredecessors
List < V > function ( ) { return _core ; }