Journal of Nonlinear and Variational Analysis《非线性与变分分析杂志》(双月刊). Journal of Nonlinear and Variational Analysis is an international peer-reviewed scientific journal devoted exclusively to the publication of high-quality research papers in the fields of nonlinear and variational analysis. One volume is published each year, and each volume consists of six issues. Journal of Nonlinear and Variational Analysis is published by the Biemdas Academic Publishers, Canada.