Kurt Lechner

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Quantifying the material properties of the human menisci is paramount to understanding their biomechanical functions within the knee. One important intrinsic material property governing the biomechanical functions of the meniscus is the circumferential tensile modulus. The purpose of this study was to determine if the circumferential tensile modulus of the(More)
We present a manifestly Lorentz invariant and supersymmetric component field action for D = 10, type IIB supergravity, using a newly developed method for the construction of actions with chiral bosons, which implies only a single scalar non propagating auxiliary field. With the same method we construct also an action in which the complex two–form gauge(More)
The fields of the conjectured “heterotic” super–fivebrane sigma–model in ten dimensions are made out of a well known gravitational sector, the X and the θ, and of a still unknown heterotic sector which should be coupled to the Yang– Mills fields. We compute the one–loop d = 6 worldvolume and D = 10 target space Lorentz–anomalies which arise from the(More)
Covariant actions for the bosonic fields of D=10 IIB supergravity are constructed with the help of a single auxiliary scalar field and in a formulation with an infinite series of auxiliary (anti)–self–dual 5-form fields. The construction of a complete action for chiral N = 2 (or IIB) supergravity in ten– dimensional space–time [1] is a long standing(More)
We determine the two–dimensional Weyl, Lorentz and κ–anomalies in the D = 10 Green–Schwarz heterotic string sigma–model, in an SO(1, 9)-Lorentz covariant background gauge, and prove their cancellation. ∗ Supported in part by M.P.I. This work is carried out in the framework of the European Community Programme “Gauge Theories, Applied Supersymmetry and(More)
We construct an effective action describing an elementary M5–brane interacting with dynamical eleven–dimensional supergravity, which is free from gravitational anomalies. The current associated to the elementary brane is taken as a distribution valued δ–function on the support of the 5–brane itself. Crucial ingredients of the construction are the consistent(More)
We show that the field equations for the supercoordinates and the self–dual antisymmetric tensor field derived from the recently constructed κ–invariant action for the M theory five-brane are equivalent to the equations of motion obtained in the doubly supersymmetric geometrical approach at the worldvolume component level.