TITLE: A study of Kelvin-Helmholtz instability in solar partially ionised magnetised jets AUTHOR: S. Lomineishvili, AI SAS ABSTRACT: Kelvin-Helmholtz Instability (KHI) in solar, partially ionised, magnetised jets is studied. The jets are modelled as two magnetic slabs in a relative motion at an arbitrary angle. Using MHD equations of par- tially ionised plasmas, an analytical dispersion relation is obtained, which further is solved analytically and numerically for various settings pertaining to the solar chromospheric jets and prominences. The rela- tive importance of partial ionisation and perpendicular magnetic field component on the onset and growth rate of KHI is quantified and discussed.