Kirish.................................................................................................. 3 §. Tekis deyarli davriy funksiyalar ta‟rifi va elementar xossalari 4§. Boxner teoremasi va uning natijalari.............................................. 8§. Tekis deyarlidavriy funksiyaning boshlang„ichi haqidagiteorem 10§. Tekis deyarlidavriy funksiyaning o„rtaqiymati haqidagi teorema 12§. Tekis deyarlidavriy funksiyalar uchun Fure qatori........................ 16§. Fure qatoriustida formal amallar.................................................. 19§. Tekis deyarli davriyfunksiyalar haqidagi asosiyteoremalarningo„zaro ekvivalentligi.................................................................................... 23 §. Approksimatsiya teoremasini Viner usulida isbotlash................... 26§. Approksimatsiya teoremasini Boxner-Feyer usulida