percolation probability
41Scale invariance — In physics and mathematics, scale invariance is a feature of objects or laws that do not change if length scales (or energy scales) are multiplied by a common factor. The technical term for this transformation is a dilatation (also known as… …
42Potts model — In statistical mechanics, the Potts model, a generalization of the Ising model, is a model of interacting spins on a crystalline lattice. By studying the Potts model, one may gain insight into the behaviour of ferromagnets and certain other… …
43Metapopulation — A metapopulation consists of a group of spatially separated populations of the same species which interact at some level. The term metapopulation was coined by Richard Levins in 1970 to describe a model of population dynamics of insect pests in… …
44List of theories — This is a list of topics commonly referred to as theory .This is not a list of theorems or theories (e.g., Theory of relativity, String theory) but branches of knowledge with theory in their name.*Atomic theory *Automata theory *Axiomatic set… …
45Extremal optimization — (EO) is an optimization heuristic inspired by the Bak Sneppen model of self organized criticality from the field of statistical physics. This heuristic was designed initially to address combinatorial optimization problems such as the travelling… …
46Cyclic cellular automaton — A one dimensional cyclic cellular automaton with n = 4, run for 300 steps from a random initial configuration. The cyclic cellular automaton is a cellular automaton rule developed by David Griffeath and studied by several other cellular automaton …
47harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …
48List of unsolved problems in mathematics — This article lists some unsolved problems in mathematics. See individual articles for details and sources. Contents 1 Millennium Prize Problems 2 Other still unsolved problems 2.1 Additive number theory …
49Mikhail Vasilyevich Menshikov — Mikhail Menshikov Born January 17, 1948 (1948 01 17) (age 63) …
50Unsolved problems in mathematics — This article lists some unsolved problems in mathematics. See individual articles for details and sources. Millennium Prize Problems Of the seven Millennium Prize Problems set by the Clay Mathematics Institute, the six ones yet to be solved are:… …
