This package supplies capabilities for nonconforming mesh tying and contact formulations in 2 and 3 dimensions using mortar methods. mortar methods are a type of lagrange multiplier constraint that can be used in contact formulations and in non-conforming or conforming mesh tying as well as in domain decomposition techniques. originally introduced as a domain decomposition method for spectral elements, mortar methods are used in a large class of nonconforming situations such as the surface coupling of different physical models, discretization schemes or non-matching triangulations along interior interfaces of a domain.

this package provides headers.