Fig. 1From: CutIGA with basis function removalB-spline basis functions in one dimension. The set B of basis functions with non-empty support in \(\Omega \) are indicated in deep purple. Note that basis functions crossing the boundary of \(\Omega \) are defined analogously to interior basis functions. a \(C^1 Q^2(\mathbb {R})\). b \(C^2 Q^3(\mathbb {R})\)Back to article page