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We show that this invariant density can be computed by a family of Markov finite approximations that preserve the monotonicity of integrable functions. We also construct a quadratic spline Markov method and demonstrate its merits numerically. <\/jats:p>","DOI":"10.1142\/s0218127423500578","type":"journal-article","created":{"date-parts":[[2023,4,28]],"date-time":"2023-04-28T09:06:31Z","timestamp":1682672791000},"source":"Crossref","is-referenced-by-count":0,"title":["Computing Invariant Densities of a Class of Piecewise Increasing Mappings"],"prefix":"10.1142","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0280-0856","authenticated-orcid":false,"given":"Zi","family":"Wang","sequence":"first","affiliation":[{"name":"School of Mathematical Sciences, Harbin Normal University, Harbin 150025, P. R. 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