Spingroups and spherical means III
Spinor equations in Weyl geometry
This paper deals with Dirac, twistor and Killing equations on Weyl manifolds with -spin structures. A conformal Schrödinger-Lichnerowicz formula is presented and used to derive integrability conditions for these equations. It is shown that the only non-closed Weyl manifolds of dimension greater than 3 that admit solutions of the real Killing equation are 4-dimensional and non-compact. Any Weyl manifold of dimension greater than 3, that admits a real Killing spinor has to be Einstein-Weyl.
Spinor fields on Riemannian manifolds
Square integrability of group representations on homogeneous spaces and generalized coherent states
Stability and asymptotic properties of dynamical systems in the plane
Stability and averaging properties of stochastic evolution equations
Stability of numerical processes
Stability of stationary solutions of parabolic variational inequalities
Stable, chaotic and optimal solutions of first order partial differential equations related with the cell kinetics
Stable periodic oscillations in systems with monotonous hysteresis nonlinearity
Statistique et théorie de la décision
Steady and unsteady 2D numerical solution of generalized Newtonian fluids flow
This article presents the numerical solution of laminar incompressible viscous flow in a branching channel for generalized Newtonian fluids. The governing system of equations is based on the system of balance laws for mass and momentum. The generalized Newtonian fluids differ through choice of a viscosity function. A power-law model with different values of power-law index is used. Numerical solution of the described models is based on cell-centered finite volume method using explicit Runge–Kutta...
Strongly maximal matrix functions in regions containing stable solutions
Structure of Tchebychev sets
Subharmonic bifurcation in equivariant systems
Submanifold geometry in generalized flag manifolds
Superconvergence for convection-diffusion problems with low regularity
Superlinear equations, potential theory and weighted norm inequalities
Supersymmetric quantum mechanics and -nonlinear Schrödinger equation
Supersymmetry, a biased review
In spite of the provocative title this is a run of the mill review of supersymmetry. The only thing which deserves some comment is that the author seems to think that coordinate free and coordinate dependent treatments belong to conflicting cultures. This is definitely not true. Coordinate free treatments concentrate one's mind on the geometry while coordinate dependent treatments are indispensable for computations producing numbers which can be compared with experimental values. Those who use the...