%0 Book Section %T On arithmetic properties of products and shifted products %+ Institut de Mathématiques de Marseille (I2M) %+ Department of Algebra and Number Theory [Budapest] %A Rivat, Joel %A Sárközy, András %Z In Honor of Helmut Maier’s 60th Birthday %@ 978-3-319-22239-4 %B Analytic Number Theory %E Carl Pomerance • Michael Th. Rassias %I Springer International Publishing %P 345-355 %8 2015 %D 2015 %R 10.1007/978-3-319-22240-0_21 %K Product of sequences %K Shifted products %K Digit properties %K Squares %K Multiplicative characters %K Large sieve %Z Computer Science [cs] %Z Computer Science [cs]/Cryptography and Security [cs.CR] %Z Mathematics [math]/Number Theory [math.NT]Book sections %X Let A and B be large subsets of {1…,N}. Arithmetic properties of the products ab, resp. of the shifted products ab + 1 with a∈A, b∈A  are studied. In particular, it is shown that the sum of digits of the products ab is well distributed, and the size of the subsets A,B∈{1…,N} with the property that ab + 1 is always squarefree is estimated. %G English %L hal-01260187 %U https://hal.science/hal-01260187 %~ CNRS %~ UNIV-AMU %~ EC-MARSEILLE %~ INSMI %~ I2M %~ I2M-2014-