316 citations
- Slovak Academy of SciencesSK4 papers
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- Michigan State UniversityUS3 papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di PerugiaIT2 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2 papers
- Queen's University BelfastGB2 papers
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math-ph2009★ 41 cited
New solutions of Heun general equation
Artur Ishkhanyan, Kalle-Antti Suominen
We show that in four particular cases the derivative of the solution of Heun general equation can be expressed in terms of a solution to another Heun equation. Starting from this p…
math-ph2008★ 8 cited
Extremal covariant positive operator valued measures: the case of a compact symmetry group
Claudio Carmeli, Teiko Heinosaari, Juha-Pekka Pellonpää +1
Given a unitary representation U of a compact group G and a transitive G-space , we characterize the extremal elements of the convex set of all U-covariant positive operator val…