# Weak Nonhomogeneous Wavelet Bi-Frames for Reducing Subspaces of Sobolev Spaces

> Research article (Numerical Functional Analysis and Optimization, 2016) · cited 16× · AI/ML

**Wikidata**: [openalex:W2559244916](https://www.wikidata.org/wiki/openalex:W2559244916)  
**Source**: https://4ort.xyz/entity/weak-nonhomogeneous-wavelet-bi-frames-for-reducing-subspaces-of-sobolev-spaces