Recently, based on the theory of teleparallel gravity, a simple and ghost free parity violating gravity model was proposed in [M. Li, H. Rao, D. Zhao, J. Cosmol. Astropart. Phys. 11 (2020) 023], where Weitzenb\"{o}ck connection adopted for simplifying calculations but breaks local Lorentz symmetry explicitly. In this paper, we restore by giving up condition spin connection. With full covariance...

The standard way of deriving Euler-Lagrange (EL) equations given a point particle action is to vary the trajectory and set first variation zero. However, if (i) reparameterisation invariant, (ii) generally covariant, I show that one may derive EL by suitably "nullifying" through judicious coordinate transformation. net result this curve remains fixed, while all other geometrical objects in unde...

The covariance matrix of measurements of Markov random fields (processes) has useful properties that allow to develop effective computational algorithms for many problems in the study of Markov fields on the basis of field observations (parametric identification problems, filtering problems, interpolation problems and others). Therefore, approximation of arbitrary random fields by Markov fields...

 ICC profiles: are we better off without them? Giordano B. Beretta, Gary J. Dispoto, Eric Hoarau, I-Jong Lin, Jun Zeng HP Laboratories HPL-2010-144 printing, digital printing, commercial printing, commercial print automation, workflow Before ICC profiles, a device-independent page description document would encode all color in a device independent CIE space like CIELAB. When the document was t...

This paper studies constrained relative attitude determination of a formation of two vehicles. A deterministic solution for the relative attitude between the two vehicles with line-of-sight observations between them and a common object observed by both vehicles is presented. The constraint may be either a planar constraint or a triangle constraint of the observed vectors. The difference between...

Statistical associations between phenotypic traits often result from shared developmental processes and include both covariation between the trait values and more complex associations between higher moments of the joint distribution of traits. In this article, an analytical technique for calculating the covariance between traits is presented on the basis of (1). the distribution of underlying g...