Skillet (band) Skillet (band) Skillet is an American Christian rock band formed in Memphis, Tennessee in 1996. The band currently consists of husband John (lead vocals, bass) and wife Korey Cooper (rhythm guitar, keyboards, backing vocals) along with Jen Ledger (drums, vocals) and Seth Morrison (lead guitar). The band has released ten albums, with two, "Collide" and "Comatose", receiving Grammy nominations. Two of their albums, "Comatose" and "Awake", are certified Platinum and Double Platinum respectively by the RIAA while "Rise" is certified Gold . Skillet went through several line-up changes early in their career, leaving founder John Cooper as the only original
Envy-free item assignment the agents' utilities are not additive, the MNW solution is not necessarily EF1; but if the agents' utilities are at least submodular, the MNW solution satisfies a weaker property called "Marginal-Envy-Freeness except-1-item" (MEF1). There is an alternative criterion called Envy-freeness-except-cheapest (EFx): For each two agents A and B, if we remove from the bundle of B "any" item, then A does not envy B. EFx is strictly stronger than EF1. As of this writing, it is not known whether EFx allocations always exist. Given an allocation "X", define the envy ratio of "i" in "j" as: so the ratio is