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The characterization of the continuity of this class also is presented.<\/jats:p>","DOI":"10.3390\/sym17020158","type":"journal-article","created":{"date-parts":[[2025,1,22]],"date-time":"2025-01-22T05:50:53Z","timestamp":1737525053000},"page":"158","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["On the h-Additive Functions and Their Symmetry Properties"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6320-2211","authenticated-orcid":false,"given":"Mahmood Kamil","family":"Shihab","sequence":"first","affiliation":[{"name":"Department of Mathematics, College of Education for Pure Sciences, University of Kirkuk, Kirkuk 36001, Iraq"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9338-862X","authenticated-orcid":false,"given":"Pawe\u0142 Artur","family":"Kluza","sequence":"additional","affiliation":[{"name":"Department of Applied Mathematics and Computer Science, University of Life Sciences in Lublin, 20-612 Lublin, Poland"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,22]]},"reference":[{"key":"ref_1","unstructured":"Cauchy, A. 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