Projective Representations Construction for Different Points of Brillouin Zone. Application for Space Symmetry Groups $P{4}_1{2}_{1}2$ and $P{4}_3{2}_{1}2$

Victor Gubanov, Sergiy Koryakov

It was suggested method of constructing of irreducible projective representations in different points of Brilluin zone. Points Γ, Λ, Z, S, A, Σ, M, V, R, and X of space symmetry gr…