Results 31 to 40 of about 1,318,770 (301)

Hamel's formalism and variational integrators on a sphere [PDF]

2012 IEEE 51st IEEE Conference on Decision and Control (CDC), 2012
7 pages, 4 ...
Dmitry V. Zenkov, Melvin Leok, Anthony M. Bloch   +2 more
openaire   +3 more sources

T-duality invariant approaches to string theory [PDF]

, 2010
PhDThis thesis investigates the quantum properties of T-duality invariant formalisms of String Theory. We introduce and review duality invariant formalisms of String Theory including the Doubled Formalism.
Thompson, Daniel C, Thompson, Daniel C.
core   +3 more sources

N-photon amplitudes in a plane-wave background

Physics Letters B, 2021
We use the worldline formalism to derive master formulas for the one-loop N-photon amplitudes in a plane-wave background, for both scalar and spinor quantum electrodynamics.
James P. Edwards, Christian Schubert
doaj   +1 more source

Deriving the path integral from the operator formalism

, 1990
The path integral is derived from the operator formalism with a little more caution than usual.
A. Y. Shiekh
core   +1 more source

Line Defects in Two-Dimensional Dodecagonal Quasicrystals

Mathematics
In this work, line defects in two-dimensional dodecagonal quasicrystals are investigated. Using the ten-dimensional framework of the integral formalism of two-dimensional quasicrystals, the closed-form solutions for the displacement fields and stress ...
Markus Lazar
doaj   +1 more source

Origin of anomalies in the path-integral formalism

, 1989
We show that, in the path-integral formalism, anomalies can arise from the discrepancy between classical field equations and quantum field equations. With a suitable regularization for the functional derivative, this discrepancy leads to an expression ...
Tsutsui, Izumi, Izumi Tsutsui
core   +1 more source

Line Defects in Quasicrystals

Crystals
The six-dimensional framework of the integral formalism for line defects (straight dislocations and line forces) in anisotropic elasticity has been extended to a 2n-dimensional integral formalism for line defects in quasicrystals (n=4,5,6 for one-, two-,
Markus Lazar
doaj   +1 more source

On the reliability of residual stress measurements in unidirectional carbon fibre reinforced epoxy composites

Polymer Testing, 2021
The present work introduces a novel methodology to analyse non-uniform residual stresses in composite materials. For robust determination of stresses in complex structures made of different layers, it is first necessary to prove that residual stress ...
A. Magnier, T. Wu, S.R. Tinkloh, T. Tröster, B. Scholtes, T. Niendorf   +5 more
doaj   +1 more source

Line Defects in One-Dimensional Hexagonal Quasicrystals

Mathematics
Using the eight-dimensional framework of the integral formalism of one-dimensional quasicrystals, the analytical expressions for the displacement fields and stress functions of line defects, which are dislocations and line forces, in one-dimensional ...
Markus Lazar
doaj   +1 more source

Field redefinition invariant Lagrange multiplier formalism [PDF]

, 2023
In this paper, we propose a field redefinition invariant Lagrange multiplier (LM) formalism in which new ghost-like fields, analogous to Lee-Yang ghosts, are introduced.
Brandt, F. T., Martins-Filho, S.
core   +1 more source