PHILADELPHIA, Pennsylvania, Nov. 13 -- The Journal on Applied Algebra and Geometry, a peer-reviewed journal that says it features development of algebraic, geometric and topological methods with connection to applications from the Society of Industrial and Applied Mathematics, published research articles on the following topics in its Vol. 8, Issue 4 edition:

* Reduction by Symmetries of Contact Mechanical Systems on Lie Groups

* Sum-of-Squares Certificates for Copositi . . .

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