596 citations
- E. Lindfors5 profiles21 · h 69
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- Teiko Heinosaari2 profiles13 · h 29
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11 papers · 1 filter
Extreme commutative quantum observables are sharp
Teiko Heinosaari, Juha-Pekka Pellonpää
It is well known that, in the description of quantum observables, positive operator valued measures (POVMs) generalize projection valued measures (PVMs) and they also turn out be m…
Metrization of weighted graphs
Oleksiy Dovgoshey, Olli Martio, Matti Vuorinen
We find a set of necessary and sufficient conditions under which the weight on the graph can be extended to a pseudometric …
Hybrid Trust Model for Internet Routing
Pekka Rantala, Seppo Virtanen, Jouni Isoaho
The current Internet is based on a fundamental assumption of reliability and good intent among actors in the network. Unfortunately, unreliable and malicious behaviour is becoming…
Sequential measurements of conjugate observables
Claudio Carmeli, Teiko Heinosaari, Alessandro Toigo
We present a unified treatment of sequential measurements of two conjugate observables. Our approach is to derive a mathematical structure theorem for all the relevant covariant in…
Soliton Taxonomy for a Modification of the Lattice Boussinesq Equation
Jarmo Hietarinta, Da-jun Zhang
Integrable multi-component lattice equations of the Boussinesq family have been known for some time. Recently some new equations of this type were found using the Consistency-Aroun…
On quotients and differences of hypergeometric functions
Slavko Simić, Matti Vuorinen
For Gaussian hypergeometric functions we consider the quotient and the difference for $0<x,…