INTERNATIONAL ELECTRONIC JOURNAL OF GEOMETRY, vol.12, no.2, pp.241-249, 2019 (ESCI)
In this article, we construct a new metric (sic) = (R)del + Sigma(m)(i.j=1) a(ji)delta p(j)delta(pi) in the cotangent bundle, where (R)del is the Riemannian extension and a(ji) is a symmetric (2,0)-tensor field on a differentiable manifold.