What does "semipositone" mean?

an eigenvalue problem that would be a positone eigenvalue problem except that the nonlinear function is not positive when its argument is zero.

Semipositone

adj

adj ·Rare ·Advanced level

Adjective

1
an eigenvalue problem that would be a positone eigenvalue problem except that the nonlinear function is not positive when its argument is zero. not-comparable
"Finally, we mention that several papers studied nonlinear eigenvalue problems of the form"
2
for scriptstyle λ>0 under the assumption that scriptstyle f: ℝ→ ℝ is continuous, positive, monotone. For this reason such problems were named positone... If the nonlinearity scriptstyle f: ℝ→ ℝ is continuous, monotone and scriptstyle f(0)<0,...then the eigenvalue problem is called semipositone... not-comparable

"Finally, we mention that several papers studied nonlinear eigenvalue problems of the form"

From semi- + positone.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.