%0 Journal Article %T A mean value property of harmonic functions on the interior of a hyperbola %A E. Symeonidis %J ACTA MATHEMATICA UNIVERSITATIS COMENIANAE %D 2012 %I Acta Mathematica Universitatis Comenianae %X We establish a mean value property for harmonic functions on the interior of a hyperbola. This property connects their boundary values with the interior ones on the axis of the hyperbola from the focus to infinity. %K Mean value property %K harmonic function %K hyperbola. %U http://www.emis.de/journals/AMUC/_vol-81/_no_2/_symeonidis/symeonidis.html