40 citations · 250 across the 28 of their papers we have counts for
4 papers · 1 filter
A Note on Touching Cones and Faces
Stephan Weis
We study touching cones of a (not necessarily closed) convex set in a finitedimensional real Euclidean vector space and we draw relationships to other concepts in Convex Geometry.…
Entropy Distance: New Quantum Phenomena
Andreas Knauf, Stephan Weis
We study a curve of Gibbsian families of complex 3x3-matrices and point out new features, absent in commutative finite-dimensional algebras: a discontinuous maximum-entropy inferen…
Polyhedral Voronoi Cells
Ina Voigt, Stephan Weis
Voronoi cells of a discrete set in Euclidean space are known as generalized polyhedra. We identify polyhedral cells of a discrete set through a direction cone. For an arbitrary set…
Information topologies on non-commutative state spaces
Stephan Weis
We define an information topology (I-topology) and a reverse information topology (rI-topology) on the state space of a C*-subalgebra of Mat(n,C). These topologies arise from seque…