Asymptotic expansion of the determinant of a perturbed matrixAsymptotic expansion of the determinant of
a perturbed matrix
The method of unitary transformations in stability theory of solutions for linear and quasilinear differential systems with normal matrices of coefficients (AA^*=
A^*A On some methods for investigating stability be regarded (in
a certain sense) as
a development of the classical method of normal forms, which is very
On nonlinear singularly perturbed problems in biologyThe paper studies
a quasi-linear problem with singular perturbation, presented by means of
a system