In this paper, we investigate two stochastic perturbations of the metamorphosis equations of image analysis, in the geometrical context of the EulerPoincaré theory. In the metamorphosis of images, the Lie group of diffeomorphisms deforms a template image that is undergoing its own internal dynamics as it deforms. This type of deformation allows more freedom for image matching and has analogies ...

We investigate the viscoelastic properties of entangled networks of semiflexible polymers. At intermediate time scales the elastic response of these networks to shear deformation is described by the plateau modulus G. Different scaling laws with polymer concentration c have been proposed based on the assumption that the deformation field is affine on all length scales. We develop a numerical ap...

We study N = 2 supersymmetric U(1) gauge theory in non(anti)commutative N = 2 harmonic superspace with the singlet deformation, which preserves chirality. We construct a Lagrangian which is invariant under both the deformed gauge and supersymmetry transformations. We find the field redefinition such that the N = 2 vector multilplet transforms canonically under the deformed symmetries. Non(anti)...

We investigate deformed Wess-Zumino model on N = 1 four dimensional superspace in which bosonic-fermionic noncommutativitiy [x, θ] = iλ is realized. This deformation intertwines ordinary space-time noncommutative field theory and recently proposed N = 1 2 non-(anti)commutative theory. This deformation is nilpotent and we can explicitly evaluate noncommutative effect by means of new interaction ...