On the stress state of thin-walled isotropic building constructions of the shell type. The stress-strain state of shell constructions is described by a
system of the five equilibrium
equations Bi-Variationality, Symmetries and Approximate SolutionsBy a bi-variational
system we mean any
system of
equations generated by two different Hamiltonian
Mean-field approximation for large-scale transport networks with a small parameter, construction and
operation of such
systems. The transportation problem can be solved by simplex method
Spin 3/2 Particle in the Presence of Magnetic Field: Tetrad Formalism and Fedorov-Gronskiy Method result we derive the
system of 16 first order differential
equations in the variable r. To resolve
Massless spin 2 particle: cylindrical symmetry, projective operators, gauge degrees of freedom of linear momentum, we derive the
system of 39 differen -
tial
equations in a polar coordinate r. In order