'''''Rejecta Mathematica''''' was an online [[Academic journal|journal]] for publishing [[Academic publishing#Scholarly paper|paper]]s that havehad been rejected by other [[mathematics]] journals.<ref>{{Cite suchjournal|date=2009-07-31|title=Random asSamples|url=http://science.sciencemag.org/content/325/5940/r-samples|journal=[[Science (journal)|Science]]|language=en|volume=325|issue=5940|pages=521|issn=0036-8075|via=}}</ref><ref>{{Cite web|url=http://blogs.nature.com/news/2009/07/bring_us_your_tired_your_poor.html|title=Bring us your tired, your poor, your rejected papers|last=Maher|first=Brendan|date=2009-07-14|website=[[AnnalsNature of(journal)|Nature MathematicsNews]].|language=en-US|archive-url=|archive-date=|dead-url=|access-date=2018-01-17}}</ref> Each paper iswas accompanied by an [[open letter]] describing why the paper was rejected, how the topic has been developed since and why it is worthy of publication. The first issue was published in July 2009 containing topics such as [[image enhancement]] and [[condition number]]s.<ref name=Hm/> The quality of the contributions is mixed but one paper has already attracted more citations than another paper which the same author had published in the [[Journalfirst ofissue thewas Americanseen Mathematicalas Society]]mixed.<ref name=AT>{{citation| url=https://arstechnica.com/science/news/2009/07/send-us-your-rejects-rejecta-mathematica-goes-live.ars |title=Send us your rejects |author= John Timmer |date=July 20, 2009 | publisher=Ars Technica}}</ref> The editors are:were Michael Wakin, Christopher Rozell, Mark Davenport and Jason Laska.<ref name=Hm>{{citation| url=http://www.economist.com/sciencetechnology/displaystory.cfm?story_id=14119761 | title=Huddled maths |publisher=[[The Economist]] | date=August 1, 2009 | volume=392| issue=8642}}</ref>
After almost two years since the inaugural issue, the second issue was published in June 2011 and contains topics such as subspace classification and distributions of [[pseudoprime]]s.
{{As of|2018|January}}, the original website is no longer online, but an archival copy is hosted on [[GitHub]].<ref>{{Cite web|url=https://rejecta.github.io/mathematica/|title=mathematica by rejecta|website=rejecta.github.io|access-date=2018-01-17}}</ref>
As of April 2013, the website is not online anymore.
