%0 Journal Article %T Conformal Semi-Invariant Submersions from Almost Contact Metric Manifolds onto Riemannian Manifolds %J Khayyam Journal of Mathematics %I Department of Pure Mathematics, Ferdowsi University of Mashhad (in cooperation with the Center of Excellence in Analysis on Algebraic Structures) %Z 2423-4788 %A Prasad, Rajendra %A Kumar, Sushil %D 2019 %\ 07/01/2019 %V 5 %N 2 %P 77-95 %! Conformal Semi-Invariant Submersions from Almost Contact Metric Manifolds onto Riemannian Manifolds %K Riemannian submersion %K anti-invariant submersion %K conformal semi-invariant submersions %R 10.22034/kjm.2018.68796 %X As a generalization of semi-invariant Riemannian submersions, we introduce conformal semi-invariant submersions from almost contact metric manifolds onto Riemannian manifolds and study such submersions from Cosymplectic manifolds onto Riemannian manifolds. Examples of conformal semi-invariant submersions in which structure vector field is vertical are given. We study geometry of foliations determined by distributions involved in definition of conformal anti-invariant submersions. We also study the harmonicity of such submersions and find necessary and sufficient conditions for the distributions to be totally geodesic. %U https://www.kjm-math.org/article_88074_f69b8a26e1688c8808176fbc7ab43cde.pdf