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In pure mathematics, combinatorial methods have been used with advantage in such diverse fields as probability, algebra (finite groups and fields, matrix and lattice theory), number theory (difference sets), set theory (Sperner's theorem), and mathematical logic (Ramsey's theorem).
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Her articles have appeared in Contemporary Political Theory, differences, Philosophy & Social Criticism, and Theory & Event.
In this theory, differences in the mean velocities (i.e. particle segregation) and granular temperatures of the particle species result from higher order perturbation functions.
Values of ΔS are given in units of jnd (just noticeable differences) where in theory differences between two colours <1 jnd should not be discriminable for birds.
According to the metapopulation theory, differences in dispersal ability of species may generate negative density-distribution relationships [ 3, 21, 33].
According to this theory, differences in temporal recruitment patterns decrease the stability of the pelvis during gait and thus hinder the body's mechanical efficiency.
Their results became a starting point of investigating Nevanlinna theory on difference operators and difference equations.
We refer to [9 14] for basic theory of difference equations and rational difference equations.
Recently, with the development of Nevanlinna value distribution theory on difference expressions [4 6], Halburd and Korhonen [7] considered the difference equation w ¯ + w ̲ = R ( z, w ), (1.1).
For basic theory of difference equations, we refer to [1 4], and for applications of difference equations, we refer to [5, 6].
Using matrix methods, he also contributed fundamentally to the theory of difference equations.
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