This study aims to investigate two newly developed (3 + 1)-dimensional Kairat-II and Kairat-X equations that illustrate relations with the differential geometry of curves and equivalence aspects.
The Painlevé analysis confirms the complete integrability of both Kairat-II and Kairat-X equations.
This study explores multiple soliton solutions for the two examined models. Moreover, the author showed that only Kairat-X give lump solutions and breather wave solutions.
The Hirota’s bilinear algorithm is used to furnish a variety of solitonic solutions with useful physical structures.
This study also furnishes a variety of numerous periodic solutions, kink solutions and singular solutions for Kairat-II equation. In addition, lump solutions and breather wave solutions were achieved from Kairat-X model.
The work formally furnishes algorithms for studying newly constructed systems that examine plasma physics, optical communications, oceans and seas and the differential geometry of curves, among others.
This paper presents an original work that presents two newly developed Painlev\'{e} integrable models with insightful findings.
