Positive Definiteness of Discrete Quadratic Functionals
This summary of the author's talk presented in Oberwolfach motivates the importance of certain discrete quadratic functionals and characterizes so-called positive definiteness of them via a condition on the principal solution of a related linear Hamiltonian difference system.
M. Bohner, "Positive Definiteness of Discrete Quadratic Functionals," ISNM International series of Numerical Mathematics: General Inequalities 7, Basel Birkhauser Verlag, Jan 1997.
The definitive version is available at http://dx.doi.org/10.1007/978-3-0348-8942-1_5
Mathematics and Statistics
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© 1997 Basel Birkhauser Verlag, All rights reserved.