ABSTRACT

We consider quasilinear oscillatory systems of the form https://www.w3.org/1998/Math/MathML"> A q ¨ + B q = ε Q ( t , q , q ˙ ) , https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429180200/2b4bcca7-ca87-4769-8312-7c2815082e4f/content/eq1203.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>