AUTHOR=Song Qing-Ru , Zhang Jian-Gang TITLE=He-transform: breakthrough advancement for the variational iteration method JOURNAL=Frontiers in Physics VOLUME=12 YEAR=2024 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2024.1411691 DOI=10.3389/fphy.2024.1411691 ISSN=2296-424X