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So, it is necessary to consider the product of (\n                    <jats:italic>L<\/jats:italic>\n                    ,\n                    <jats:italic>M<\/jats:italic>\n                    )-fuzzy convex structures through the product structures of (\n                    <jats:italic>L<\/jats:italic>\n                    ,\n                    <jats:italic>M<\/jats:italic>\n                    )-fuzzy hull operators. In this paper, we construct the product structures of (\n                    <jats:italic>L<\/jats:italic>\n                    ,\n                    <jats:italic>M<\/jats:italic>\n                    )-fuzzy hull operators to characterize the product of (\n                    <jats:italic>L<\/jats:italic>\n                    ,\n                    <jats:italic>M<\/jats:italic>\n                    )-fuzzy convex structures. On the other hand, we construct the coproduct structures of (\n                    <jats:italic>L<\/jats:italic>\n                    ,\n                    <jats:italic>M<\/jats:italic>\n                    )-fuzzy hull operators to give a reasonable definition with respect to the coproduct of (\n                    <jats:italic>L<\/jats:italic>\n                    ,\n                    <jats:italic>M<\/jats:italic>\n                    )-fuzzy convex structures.\n                  <\/jats:p>","DOI":"10.3233\/jifs-222911","type":"journal-article","created":{"date-parts":[[2022,12,6]],"date-time":"2022-12-06T12:45:58Z","timestamp":1670330758000},"page":"3515-3526","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Product and coproduct structures of (\n                    <i>L<\/i>\n                    ,\n                    <i>M<\/i>\n                    )-fuzzy hull operators"],"prefix":"10.1177","volume":"44","author":[{"given":"Hu","family":"Zhao","sequence":"first","affiliation":[{"name":"School of Science, Xi\u2019an Polytechnic University, Xi\u2019an, P.R. 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