Integrates C-bracket and Vaisman algebroid structures in double field theory.
problem Integration problem of C-bracket and Vaisman algebroid structures in double field theory.
method Introduces pre-rackoid as a global group-like object for infinitesimal algebroid structures, proposes two realizations, and shows reduction to rackoid under strong constraint.
result Reduces pre-rackoid to rackoid under strong constraint of double field theory.