What should be assumed about the integral polynomials in order that the solvability of the congruence for sufficiently large primes p implies the solvability of the equation in integers x? We provide some explicit characterizations for the cases when are binomials or have cyclic splitting fields.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-ba52-2-3, author = {Mariusz Ska\l ba}, title = {On Alternatives of Polynomial Congruences}, journal = {Bulletin of the Polish Academy of Sciences. Mathematics}, volume = {52}, year = {2004}, pages = {123-132}, zbl = {1107.11003}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba52-2-3} }
Mariusz Skałba. On Alternatives of Polynomial Congruences. Bulletin of the Polish Academy of Sciences. Mathematics, Tome 52 (2004) pp. 123-132. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-ba52-2-3/