Contents of Number 1
Volume 91 / 1999
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                            On the Barban-Davenport-Halberstam theorem: XI Acta Arithmetica 91 (1999) , 1-41 DOI: 10.4064/aa-91-1-1-41
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                            Three two-dimensional Weyl steps in the circle problem I. The Hessian determinant Acta Arithmetica 91 (1999) , 43-55 DOI: 10.4064/aa-91-1-43-55
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                            Three two-dimensional Weyl steps in the circle problem II. The logarithmic Riesz mean for a class of arithmetic functions Acta Arithmetica 91 (1999) , 57-73 DOI: 10.4064/aa-91-1-57-73
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                            Periodic sequences of pseudoprimes connected with Carmichael numbers and the least period of the function $l^C_x$ Acta Arithmetica 91 (1999) , 75-83 DOI: 10.4064/aa-91-1-75-83
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                            A note on the Diophantine equation $a^x + b^y = c^z$ Acta Arithmetica 91 (1999) , 85-93 DOI: 10.4064/aa-91-1-85-93
 
             
                     
                     
                     
                     
                     
                     
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            