@article { author = {}, title = {اخبار انجمن}, journal = {خبرنامه انجمن ریاضی ایران}, volume = {43}, number = {2}, pages = {-}, year = {2022}, publisher = {انجمن ریاضی ایران}, issn = {۰۰۰۰-۰۰۰۰}, eissn = {}, doi = {}, abstract = {}, keywords = {}, url = {https://nims.ims.ir/article_162932.html}, eprint = {https://nims.ims.ir/article_162932_aa3ff9e044f9efe4453145783c98c2e2.pdf} }