Sentence examples for constant sign from inspiring English sources

Then has a constant sign.

Differentiable strongly monotone maps have Jacobian with constant sign configuration.

Then the Green function has a constant sign.

Observe that F is 0 at (s_{0}) and of constant sign everywhere else.

Two of these solutions are of constant sign (one is positive, the other negative).

Moreover, there exists a nontrivial constant sign eigenfunction corresponding to the eigenvalue (lambda_{1}).

Let and be the extremal constant-sign solutions of (1.1).

Hence system (P) has at least four nontrivial constant-sign solutions.

In this paper, we are interested in the case of constant-sign solutions.

Then, (1.1) has at least one constant-sign solution in (C[0, T]) n.

In this paper, we study the existence of constant-sign solutions of BVP (1.1) without the AR-condition.