Fundamental solution of multidimensional axisymmetric Helmholtz equation© 2016 Informa UK Limited, trading as Taylor & Francis GroupFor axisymmetric
Helmholtz equation Fundamental solution of multidimensional axisymmetric Helmholtz equation© 2016 Informa UK Limited, trading as Taylor & Francis Group.For axisymmetric
Helmholtz equation Inverse problem of the calculus of variations for systems of differential-difference equations of second order of differential-difference
equations is considered. The relationship between the formal potentiality of a linear
Construction of Equations of Dynamics of a Given Structure Based on Equations of Program Constraints disturbances. We use modified
Helmholtz conditions to represent differential
equations in the form of Lagrange
Double-layer potential of axially symmetric Helmholtz lowest term equation,which is the generalized
Helmholtz equation,both with the lowest term and without it,a double-layer potential is found
Helmholtz potentiality conditions for systems of differential-difference equations-difference
equations of muth order of neutral type, we obtain necessary and sufficient conditions for potentiality
Построение уравнений динамики заданной структуры по уравнениям программных связей disturbances. We use modified
Helmholtz conditions to represent differential
equations in the form of Lagrange