... .Then a set of Jordan chainsϕ j, 0, ϕ j, 1, . . . , ϕ j, κ j −1, j = 1, . . . , I,is called canonical system of eigenvectors and generalized eigenvectors if(1) the eigenvectors {ϕ j, 0} j= 1, ,Iform ... assertion of the theorem.1.3.4. On the number of eigenvalues of the pencil A in the interval(α, β). Let {u j (λ)} be a sequence of linearly independent eigenvectors of problem(1.3.1) corresponding ... the pencil of sesquilinear forms(1.2.1) a(u, v; λ) =l j= 0a j (u, v) λ j ,where a j (·, ·) are bounded sesquilinear forms on H+× H+which define linear andcontinuous operators A j : H+→...