The period-gap cataclysmic variable CzeV404 Her: A link between SW Sex and SU UMa systems

Context: We present a new study of the eclipsing cataclysmic variable CzeV404 Her (Porb = 0.098 d) that is located in period gap. Aims: This report determines origin object and system parameters probes accretion flow structure system. Methods: conducted simultaneous time-resolved photometric spectroscopic observations Her. applied our light-curve modelling techniques Doppler tomography method to determine analyse disk. Results: found has massive white dwarf M_WD 1.00(2) M_sun mass ratio q 0.16, relatively hot secondary with an effective temperature T_2 4100(50) K. The inclination i 78.8{\deg}. disk spreads out tidal limitation radius extended spot or line region. hotter than remaining outer part quiescence intermediate state, but does not stand completely from flux (super)outbursts. Conclusions: claim this represents link between two distinct classes SU UMa-type SW Sex-type variables. corresponds Sex systems, physical conditions inside fit behaviour objects.