On the Ritt order and type of a certain class of functions defined by<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="$BE$" id="E1"><mml:mrow><mml:mi>B</mml:mi><mml:mi>E</mml:mi></mml:mrow></mml:math>-Dirichletian elements
International journal of mathematics and mathematical sciences