2 papers
math.CA2013
Continuity of scalar-fields characterized by smooth paths fulfilling $\|\bs(t)\|\|\bs'(t)\| < +\infty$
Sigurdur F. Hafstein
A function from a subset of to is continuous at the origin, if and only if $\lim_{t\to 0+} f(\bs(t))=f(\bnull)$ for all continuous paths $\bs$ with $\lim_{t\to 0+}…
math.DS2012
Construction of a CPA contraction metric for periodic orbits using semidefinite optimization
Peter Giesl, Sigurdur Hafstein
A Riemannian metric with a local contraction property can be used to prove existence and uniqueness of a periodic orbit and determine a subset of its basin of attraction. While the…