MMA2009 P.Code=MeroO ===============------------------------------ First Name =Olga Last Name =Meronen Title = Institution =Tallinn University of Technology Street Address =Ehitajate tee 5 City =Tallinn State =Estonia Zip Code =19086 Telephone =+3726203056 FAX = E-mail =olgam@staff.ttu.ee URL = Title of talk and AMS Subject Classification=Several theorems on lambda-summable series