3-NIRVANA-user-guide/3.2-User-interfaces.md

@@ -415,14 +415,16 @@ possible values or a numeric range.
         Jeans-length-based mesh refinement criterion allowing a
         systematic reduction of the Jeans threshold with increasing
         refinement level $l$ according to the expression `_C.amr_Jeans`
-        -$l$\*`_C.amr_dJeans`, i.e., the local Jeans length becomes
+        -$l$*`_C.amr_dJeans`, i.e., the local Jeans length becomes
         gradually higher resolved with incresing $l$. `_C.amr_dJeans`
         must be positiv.
+        $y=10^{-7}$
 
         **Important**: `_C.amr_dJeans` must be chosen with care such
         that the actual Jeans threshold never becomes too small or
         negative at some refinement level. Otherwise it will trigger
         mesh refinement up to the maximum refinement level allowed.
+        $y=10^{-7}$
 
     -   `_C.amr_Field` (typical value: $0.2$): threshold in the
         Field-length-based mesh refinement criterion (cf.