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TypeTitleAuthorRepliesLast Post
Open problemStar height problem porton114 years 23 weeks ago
forum topicA problem list at MathOverflow porton014 years 23 weeks ago
forum topicOne more source of open problems in analysis porton014 years 23 weeks ago
forum topicOpen Problems in Continuum Theory porton014 years 23 weeks ago
categoryregular languages Anonymous014 years 23 weeks ago
categoryregular expressions Anonymous014 years 23 weeks ago
categoryKleene stars Anonymous014 years 23 weeks ago
categoryLawrence Eggan C. Anonymous014 years 23 weeks ago
categoryformal language Anonymous014 years 23 weeks ago
forum topicOpen Problems in Mathematical Systems and Control Theory porton014 years 23 weeks ago
Open problemOdd cycles and low oddness Gagik414 years 26 weeks ago
Open problemOdd perfect numbers azi114 years 26 weeks ago
Open problemMatching cut and girth w014 years 27 weeks ago
categorymatching cut, matching, cut Anonymous014 years 27 weeks ago
forum topicQuestion about 'solving' something niekeaerts314 years 28 weeks ago
Open problemStrong 5-cycle double cover conjecture arthur814 years 28 weeks ago
Open problemPetersen coloring conjecture mdevos214 years 28 weeks ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos214 years 28 weeks ago
Open problemThe Berge-Fulkerson conjecture mdevos914 years 28 weeks ago
categorygraph drawing Anonymous014 years 28 weeks ago
categoryKoch, Christina Anonymous014 years 28 weeks ago
categoryLaison, Joshua D. Anonymous014 years 28 weeks ago
categoryobstacle number Anonymous014 years 28 weeks ago
categoryAlpert, Hanna Anonymous014 years 28 weeks ago
Open problemObstacle number of planar graphs Andrew King014 years 28 weeks ago