Robuta

https://ems.press/journals/rmi/articles/16674 On differential polynomial rings over nil algebras | EMS Press Mikhail Chebotar, Wen-Fong Ke differential polynomial ems press rings nil algebras https://bims.iranjournals.ir/article_176.html Differential Polynomial Rings of Triangular Matrix Rings differential polynomial triangular matrix rings https://www.it.pt/BibTex/PaperConferences/12855 Bibtex for Paper Conference Solving analytic differential equations in polynomial time over... differential equations polynomial time bibtex paper conference