The following articles contain lists of problems:
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List of undecidable problems
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Lists of unsolved problems
List of unsolved problems may refer to several notable conjectures or open problems in various academic fields:
Natural sciences, engineering and medicine
* Unsolved problems in astronomy
* Unsolved problems in biology
* Unsolved problems in chemi ...
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List of NP-complete problems
This is a list of some of the more commonly known problems that are NP-complete when expressed as decision problems. As there are hundreds of such problems known, this list is in no way comprehensive. Many problems of this type can be found in ...
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List of PSPACE-complete problems
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