  Monogamy of entanglement is the fundamental property of quantum systems. By
using two new entanglement measures based on dual entropy, the $S^{t}$-entropy
entanglement and $T^{t}_q$-entropy entanglement measures, we present the
general monogamy relations in multi-qubit quantum systems. We show that these
newly derived monogamy inequalities are tighter than the existing ones. Based
on these general monogamy relations, we construct the set of multipartite
entanglement indicators for $N$-qubit states, which are shown to work well even
for the cases that the usual concurrence-based indicators do not work. Detailed
examples are presented to illustrate our results.
