Abstract
In this article, Lie super-bialgebra structures on the Lie superalgebra of Witt type are investigated. They are shown to be triangular coboundary. As a byproduct, we obtain that the first cohomology group
is trivial.
Acknowledgments
We wish to thank the referee for the advice to make the paper more readable, and to make the proof of Claim 2 in Proposition 4.1 more clear.