Abstract:
The paper considers the decision of Riemann problem in a case of doubly periodic arrangements of arches. The case of periodic factor and a free member is regarded. On the basis of results for Riemann problem decision in case of accounting set of contours, generalization on the case of non-periodic jumps is given.
Keywords:Riemann problem, doubly periodic arrangements of arches, elliptic function, quasielliptic function, periodic factor and a free member, accounting set of arches, non-periodic gallop.