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In the vicinity of boundaries the bulk universality class of criticalphenomena splits into several boundary universality classes, depending uponwhether the tendency to order in the boundary is smaller or larger than in thebulk. For Ising universality class there are five different boundaryuniversality classes: periodic, antiperiodic, free, fixed and mixed (mixture ofthe last two). In this paper we present the new set of the universal amplituderatios for the mixed boundary universality class. The results are in perfectagreement with a perturbated conformal field theory scenario proposed by Cardy\cite{cardy86}.

Ising model with mixed boundary conditions: universal amplitude ratios