List of unsolved problems
Encyclopedia
A list of unsolved problems may refer to several conjectures or open problem
s in various fields:
Unsolved problems in medicine
Open problem
In science and mathematics, an open problem or an open question is a known problem that can be accurately stated, and has not yet been solved . Some questions remain unanswered for centuries before solutions are found...
s in various fields:
- Unsolved problems in artificial intelligence
- Unsolved problems in biology
- Unsolved problems in chemistryUnsolved problems in chemistryUnsolved problems in chemistry tend to be questions of the kind "Can we make X chemical compound?", "Can we analyse it?", "Can we purify it?" and are commonly solved rather quickly, but may just as well require considerable efforts to be solved. However, there are also some questions with deeper...
- Unsolved problems in computer science
- Unsolved problems in economicsUnsolved problems in economicsThis is a list of some of the major unsolved problems, puzzles, or questions in economics. Some of these are theoretical in origin and some of them concern the inability of standard economic theory to explain an empirical observation.- Behavioral economics :...
- Unsolved problems in linguisticsUnsolved problems in linguisticsThis article discusses currently unsolved problems in linguistics.Some of the issues below are commonly recognized as unsolved problems; i.e., it is generally agreed that no solution is known...
- Unsolved problems in mathematicsUnsolved problems in mathematicsThis article lists some unsolved problems in mathematics. See individual articles for details and sources.- Millennium Prize Problems :Of the seven Millennium Prize Problems set by the Clay Mathematics Institute, six have yet to be solved:* P versus NP...
Unsolved problems in medicine
- Unsolved problems in neuroscienceUnsolved problems in neuroscienceSome of the yet unsolved problems of neuroscience include:* Consciousness: What is the neuronal basis of subjective experience, cognition, wakefulness, alertness, arousal and attention? How is the "hard problem of consciousness" solved? What is its function?...
- Unsolved problems in philosophyUnsolved problems in philosophyThis is a list of some of the major unsolved problems in philosophy. Clearly, unsolved philosophical problems exist in the lay sense . However, philosophers generally accord serious philosophical problems specific names or questions, which indicate a particular method of attack or line of reasoning...
- Unsolved problems in physicsUnsolved problems in physicsThis is a list of some of the major unsolved problems in physics. Some of these problems are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result...
- Unsolved problems in statisticsUnsolved problems in statisticsThere are many longstanding unsolved problems in mathematics for which a solution has still not yet been found. The unsolved problems in statistics are generally of a different flavor; according to John Tukey, "difficulties in identifying problems have delayed statistics far more than difficulties...