Flow visualization is a research discipline that is concerned with the visual exploration and analysis of vector fields. An important class of methods are the topology-based techniques, which concentrate on individual structures in the domain that govern, constrain or guide the behavior of particles in the vector field. In this chapter, we give an overview of existing techniques for steady and unsteady vector fields in 2D and 3D. For ...

We extend the definition of the classic instantaneous vector field saddles, sinks, and sources to the finite-time setting by categorizing the domain based on the behavior of the flow map w.r.t. contraction or expansion. Since the intuitive Lagrangian approach turns out to be unusable in practice because it requires advection in unstable regions, we provide an alternative, sufficient criterion that can be computed in a robust way. We show ...

Firms are keen to benefit strategically from startups by applying new technologies, products, or services that increase productivity of processes and competitiveness of products. Besides tapping into entrepreneurial innovations through traditional collaboration models such as corporate venture capital or R&D alliances, firms have increasingly begun engaging with startups upon supplier relationships. These buyer–supplier relationships, ...