MMA2009 P.Code=GritA ===============------------------------------ First Name =Armands Last Name =Gritsans Title =Asoc. Prof. Institution =Daugavpils University Street Address =Parades 1 City =Daugavpils State =Latvia Zip Code =LV5400 Telephone =+37165422302 FAX = E-mail =arminge@inbox.lv URL = Title of talk and AMS Subject Classification=Armands Gritsans, Felix Sadyrbaev. On time map formulae.