Name Hongyan Xu Affiliation پژوهشگر در خارج از ایران Degree _ Website Email — JournalPaper Presentation FinishedProject Book Thesis Speech Innovation ResearchExcellence Sabbatical TheorizingChair GrantAttraction WorkShop Membership JournalPublication ExecutiveActivity TitleJournal 1 NONSTANDARD FINITE DIFFERENCE SCHEMES WITH POSITIVITY PROPERTY WITH APPLICATION TO A MATHEMATICAL MODEL OF HIV INFECTION applied and computational mathematics 2 Exploring local and global stability of COVID-19 through numerical schemes Scientific Reports