Sentence examples for sign changing from inspiring English sources

(i) If, then is sign changing.

The function (K xi)) may be sign changing on Ω.

We define a sign changing nonlinearity as follows: (4.2).

The result from Bartsch-Wang [5] suggested that (1.2) should have one sign changing solution.

Then u is sign-changing.

However, here we study the more general initial data that satisfy (1.4) and are sign-changing.

The nonlinear term f may take negative values and the nonlinearity may be sign-changing.

Moreover, W ( n, x ) is also allowed to be sign-changing.

(V x)) and (f x,u u) are both allowed to be sign-changing.

In particular, (L t)) and (W t, x)) are allowed to be sign-changing.

To cover all sign-changing shifts year-round requires a staff of three.