Punam Gupta

Pseudosymmetries Punam Gupta

The aim of this book is to define and study the $({\cal{T}}_{\!a}, {\cal{T}}_{\!b})$-pseudosymmetric, $({\cal{T}}_{\!a}, {\cal{T}}_{\!b}, S^{\ell})$-pseudosymmetric, $({\cal{T}}_{\!a}, S_{{\cal{T}}_{b}})$-pseudosymmetric and $({\cal{T}}_{\!a}, S_{{\cal{T}}_{\!b}}, S^{\ell})$-pseudosymmetric semi-Riemannian manifolds. Then study these type of pseudosymmetry for $(N(K),\xi)$-semi-Riemannian manifolds.