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Shape modes of C P 1 vortices. [PDF]

open access: yesLett Math Phys
Gavrea N, Harland D, Speight M.
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Pattern Equations and Equations with Stuttering

1999
Word equation in a special form X = A, where X is a sequence of variables and A is a sequence of constants, is considered. The problem whether X = A has a solution over a free monoid (Pattern- Equation problem) is shown to be NP-complete. It is also shown that disjunction of a special type equation systems and conjunction of the general ones can be ...
Ivana Cerná   +2 more
openaire   +3 more sources

Equations of State and Constitutive Equations

Journal of Rheology, 1986
Equations-of state information in the otherwise undeformed state as a starting point for the development of constitutive equations is considered in addition to thermodynamics, free energy functions, and conceptual difficulties including the definition of reference states for strain.
Landel, Robert F., Peng, Steven T. J.
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George Dantzig: Equations, Equations, and Equations

2013
Dantzig was the progenitor of the simplex method for linear programming. A viewpoint in his spirit approaching P versus NP entirely via linear equations is presented and defended.
Richard J. Lipton, Kenneth W. Regan
openaire   +1 more source

Heun’s Equation and the Hypergeometric Equation

SIAM Journal on Mathematical Analysis, 1979
The present investigation determines under which circumstances Heun’s equation can be derived from the hypergeometric equation by rational substitutions.
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