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What (who) is perturbed - definition
REFINEMENT OF NASH EQUILIBRIUM
Trembling hand perfection; Trembling hand equilibrium; Trembling hand perfect equilibirum; Perturbed game; Trembling-hand perfection; Perfect equilibrium; Trembling-hand perfect equilibrium
perturbed
If someone is perturbed by something, they are worried by it. (FORMAL)
He apparently was not perturbed by the prospect of a policeman coming to call...
= alarmed
ADJ: usu v-link ADJ, oft ADJ by/at n, ADJ that
perturbed
adj.
1) perturbed about, at, by, over
2) perturbed to + inf. (we were perturbed to learn of the bad news from the front)
Perturbed
·adj Agitated; disturbed; troubled.
Wikipedia
Trembling hand perfect equilibrium
In game theory, trembling hand perfect equilibrium is a type of refinement of a Nash equilibrium that was first proposed by Reinhard Selten. A trembling hand perfect equilibrium is an equilibrium that takes the possibility of off-the-equilibrium play into account by assuming that the players, through a "slip of the hand" or tremble, may choose unintended strategies, albeit with negligible probability.
Examples of use of perturbed
1. They perturbed whenever there were bombings on Iraq.
2. I feel perturbed in heart and mind‘," he delicately added.
3. A perturbed Mr Blair apologised for the "people who follow me around" before realising his mistake.
4. Mike O‘Brien said he was gravely perturbed that even serial sex offenders were escaping conviction.
5. Some legal experts were perturbed by the Treasury‘s decision to name the majority of suspects.