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However, some problems have distinct optimal solutions; for example, the problem of finding a feasible solution to a system of linear inequalities is a linear programming problem in which the objective function is the zero function (i.e., the constant function taking the value zero everywhere).
A basis B of the LP is called dual-optimal if the solution = is an optimal solution to the dual linear program, that is, it minimizes . In general, a primal-optimal basis is not necessarily dual-optimal, and a dual-optimal basis is not necessarily primal-optimal (in fact, the solution of a primal-optimal basis may even be unfeasible for the ...
In linear programming, a discipline within applied mathematics, a basic solution is any solution of a linear programming problem satisfying certain specified technical conditions. For a polyhedron P {\displaystyle P} and a vector x ∗ ∈ R n {\displaystyle \mathbf {x} ^{*}\in \mathbb {R} ^{n}} , x ∗ {\displaystyle \mathbf {x} ^{*}} is a ...
American horror and science fiction magazine. Online Asimov's Science Fiction: 1977 United States Penny Publications, LLC American magazine which publishes science fiction and fantasy and perpetuates the name of Isaac Asimov. Printed Clarkesworld Magazine: 2006 United States Wyrm Publishing American magazine which publishes science fiction ...
The first issue of Vector was published in 1958 under the editorship of E. C. Tubb. [3] The publication was established as an irregular newsletter for members of the BSFA, founded in the same year, but "almost at once it began to produce reviews and essays, polemics and musings, about the nature and state of science fiction."
Between 1997 and 1999 Albedo One was honored three times by the European Science Fiction Society, winning Awards for "Best Magazine" and "Best Publisher". [15]Stories from the magazine often earned Honorable Mentions in the Year's Best Science Fiction edited by Gardner Dozois and the Year's Best Fantasy and Horror edited by Ellen Datlow, Kelly Link and Gavin Grant.
For a few days in October 2023, the capital of the science fiction world was Chengdu, China. Fans traveled from around the world as Worldcon, sci-fi’s biggest annual event, was held in the ...
Space Stories was a pulp magazine which published five issues from October 1952 to June 1953. It was published by Standard Magazines, and edited by Samuel Mines. Mines' editorial policy for Space Stories was to publish straightforward science fiction adventure stories.