Home / Archives / Vol. 2 No. 1 (2025): IJAMS 2992-1708 Vol. 2 No. 1 (2025): IJAMS 2992-1708 DOI: https://doi.org/10.69717/ijams.v2.i1 Published: 2025-01-22 Articles The Impact of Imperfect Vaccination on Infectious Disease Transmission in an Age-Structured Population Fatima Zohra Hathout, Tarik Mohammed Touaoula (Author) ERROR ESTIMATION FOR A PIEZOELECTRIC CONTACT PROBLEM WITH WEAR AND LONG MEMORY BACHIR DEHDA, MOHAMMED SALAH MESAI AOUN, ABDELAZIZ AZEB AHMED (Author)