Search
Search Results
-
The genetic variability of grapevine Pinot gris virus (GPGV) in Australia
Grapevine Pinot gris virus (GPGV; genus Trichovirus in the family Betaflexiviridae ) was detected in Australia in 2016, but its impact on the...
-
Salicylic acid suppression of clubroot in broccoli (Brassicae oleracea var. italica) caused by the obligate biotroph Plasmodiophora brassicae
The obligate soil-borne biotroph Plasmodiophora brassicae has a significant economic impact on Brassicaceae crops. The pathogen severely disrupts the...
-
An Introduction to the Mathematics of Money Saving and Investing
Introduction Some people distinguish between savings and investments, where savings are monies placed in relatively risk-free accounts with modest...
-
The uniqueness of the Einstein-Maxwell field equations
The most general Lagrange density (which is a concomitant of the metric tensor together with a vector field and its first derivatives) for which the...
-
The electromagnetic energy momentum tensor and its uniqueness
The uniqueness of the electromagnetic energy momentum tensor is established under general conditions.
-
The algebraic Rainich conditions
It is well known that the Einstein-Maxwell field eguations are the Euler-Lagrange equations associated with a particular Lagrange density. It is also...
-
The uniqueness of the Einstein field equations in a four-dimensional space
The Euler-Lagrange equations corresponding to a Lagrange density which is a function of g ij and its first two derivatives are investigated. In...
-
On variational principles in which the Lagrangian function involves third order derivatives
Recently variational principles whose Lagrangian functions involve third order derivatives of the position vector have been considered with a view to...