* Implied volatility rises in yen, euro * Yen rises to more than 1-month high vs dollar * Graphic: World FX rates in 2020 tmsnrt.rs/2RBWI5E LONDON, Oct 28 (Reuters) - The dollar rose against the euro on prospects of a national coronavirus lockdown in France, with implied volatility gauges in the common currency and the yen hitting multi-month highs as traders positioned for next week’s U.S. election. The dollar fell against the safe-haven Japanese currency, as disappointment that the United States has not yet found a way to push through another round of fiscal stimulus also weighed on market sentiment. Advertisement