Search results
Results from the WOW.Com Content Network
In the fields of mechanism design and social choice theory, Gibbard's theorem is a result proven by philosopher Allan Gibbard in 1973. [1] It states that for any deterministic process of collective decision, at least one of the following three properties must hold: The process is dictatorial, i.e. there is a single voter whose vote chooses the ...
Gibbard's 1978 theorem and Hylland's theorem extend these results to non-deterministic mechanisms, i.e. where the outcome may not only depend on the ballots but may also involve a part of chance. The Duggan–Schwartz theorem extend this result in another direction, by dealing with deterministic voting rules that choose multiple winners. [19]
Gibbard's theorem shows that any strategyproof game form (i.e. one with a dominant strategy) with more than two outcomes is dictatorial. The Gibbard–Satterthwaite theorem is a special case showing that no deterministic voting system can be fully invulnerable to strategic voting in all circumstances, regardless of how others vote.
Mistakes happen on live TV, and Cher’s Today show flub was nothing short of hilarious. Cher, 78, accidentally dropped an F-bomb on air while chatting with Hoda Kotb about her new book, Cher: The ...
Pandya theorem (nuclear physics) Pomeranchuk's theorem ; Reeh–Schlieder theorem (local quantum field theory) Spin–statistics theorem ; Stone–von Neumann theorem (functional analysis, representation theory of the Heisenberg group, quantum mechanics) Supersymmetry nonrenormalization theorems ; Vafa–Witten theorem
Cher made a memorable appearance on the Today show, alright.. While sitting down with Hoda Kotb on the NBC news series for a wide-ranging live interview on Tuesday, Nov. 19 to promote her new ...
Kelly Rowland‘s team is speaking out after the singer abruptly left the Today show studio ahead of a planned appearance as a cohost. “After 28 years of knowing her, Kelly Rowland remains one ...
The following is a list of notable unsolved problems grouped into broad areas of physics. [1]Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.