Iegor Riepin

Results 12 issues of Iegor Riepin

This PR builds on top of #1154 (New Optimization Module & Stochastic Networks) and #1345 (Add risk-averse optimization). This is a placeholder for now, I add a proper description later....

## Changes proposed in this Pull Request This PR refactors solve_network.py (and solve_operations_network.py) with the aim to make an instance of a optimization problem to be solved in the workflow...