On a winter day, a snowflake can look like a tiny work of art, with six delicate arms branching outward in nearly identical patterns. For centuries, people have admired this symmetry and wondered how ...

Abstract: In this article, a new approximate joint diagonalization problem is formulated for the blind separation of possibly dependent sources, modelled as widely linear autoregressive moving average ...

Abstract: With increasing interdependence among electricity, district heating, and natural gas systems in economy and physics, this paper focuses on the optimal bidding problem of a dominant gas-fired ...