Abstract
A few notational errors were recently discovered in the above publication. • The notation used in the note is valid for fluxes of the form [Formula presented] where [Formula presented] is [Formula presented] constant symmetric matrix.• The matrices [Formula presented] and [Formula presented] given in (10) should be transposed.• We show that Proposition 1 in the note is valid even if [Formula presented] and [Formula presented] are variable, nonsymmetric as well as equal and invertible at the interface.The dual problem with interface conditions (neglecting boundary conditions) is [Formula presented] where [Formula presented] and [Formula presented]. The semidiscrete primal problem with variable [Formula presented] is [Formula presented] where [Formula presented] are given in the note and [Formula presented] are block diagonal matrices approximating [Formula presented] at pointwise positions in x respectively. The semidiscrete dual problem related to (2) is [Formula presented]. Substituting L from (2) leads to [Formula presented] where [Formula presented] is given in the note. The vector [Formula presented] approximates [Formula presented] and [Formula presented] impose the dual interface conditions if and only if the conservation condition (7) in the note is satisfied. Hence (3) is a dual consistent approximation of (1), and Proposition 1 holds also in this case. The authors would like to apologise for any inconvenience caused and thank Dr Sofia Eriksson for spotting the errors.
Original language  English 

Pages (fromto)  247 
Number of pages  1 
Journal  Journal of Computational Physics 
Volume  360 
DOIs 

Publication status  Published  1 May 2018 
Externally published  Yes 
ASJC Scopus subject areas
 Numerical Analysis
 Modeling and Simulation
 Physics and Astronomy (miscellaneous)
 General Physics and Astronomy
 Computer Science Applications
 Computational Mathematics
 Applied Mathematics