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2. P-complete - Wikipedia

   en.wikipedia.org/wiki/P-complete

   In order to prove that a given problem in P is P-complete, one typically tries to reduce a known P-complete problem to the given one. In 1999, Jin-Yi Cai and D. Sivakumar, building on work by Ogihara, showed that if there exists a sparse language that is P-complete, then L = P. [1] P-complete problems may be solvable with different time ...

3. List of PSPACE-complete problems - Wikipedia

   en.wikipedia.org/wiki/List_of_PSPACE-complete...

   Word problem for linear bounded automata [25] Word problem for quasi-realtime automata [26] Emptiness problem for a nondeterministic two-way finite state automaton [27] [28] Equivalence problem for nondeterministic finite automata [29] [30] Word problem and emptiness problem for non-erasing stack automata [31]

4. Category:NP-complete problems - Wikipedia

   en.wikipedia.org/wiki/Category:NP-complete_problems

   Weakly NP-complete problems (1 C, 5 P) Pages in category "NP-complete problems" ... Set cover problem; Set packing; Set splitting problem; Set TSP problem; Shakashaka;

5. ♯P-complete - Wikipedia

   en.wikipedia.org/wiki/%E2%99%AFP-complete

   A single perfect matching can be found in polynomial time, but counting all perfect matchings is #P-complete. The perfect matching counting problem was the first counting problem corresponding to an easy P problem shown to be #P-complete, in a 1979 paper by Leslie Valiant which also defined the class #P and the #P-complete problems for the ...

6. Horn-satisfiability - Wikipedia

   en.wikipedia.org/wiki/Horn-satisfiability

   Horn satisfiability is actually one of the "hardest" or "most expressive" problems which is known to be computable in polynomial time, in the sense that it is a P-complete problem. [1] The Horn satisfiability problem can also be asked for propositional many-valued logics. The algorithms are not usually linear, but some are polynomial; see ...

7. Yes, You Really Should Bake With Room Temperature Eggs ... - AOL

   www.aol.com/yes-really-bake-room-temperature...

   You can consider baking an art, rooted in science. Mitch Diamond/Getty Images. Most of us immediately understand why butter needs to be at room temperature if you intend to cream it with sugar ...