Divergence and Curl of COVID19 Spreading in the Lower Peninsula of Michigan

This paper explores the COVID19 transmission pattern and circulation dynamics in Euclidean space at lower peninsula of Michigan by using divergence curl concept vector field. The volume flux can be calculated for each county divergence. results shows Wayne had highest (162660), Kent second (152540), Saginaw third (103240), is positive which means virus was transmitted from these counties to other places. also Monroe lowest (-187843), Allegan number (-90824), negative places counties. curl. that has circulated a counter-clockwise direction, clockwise direction.
 
 an operator field, produces scalar field giving quantity field’s source location. spreading density outward represented around given describes location whose length direction denote magnitude axis maximum circulation. formally defined as