ملخص
We obtain estimates for Christoffel functions and orthogonal polynomials for even weights W : R → [0, ∞) that are 'close' to indeterminate weights. Our main example is exp fenced(- || fenced(x) fenced(log || fenced(x))β), with β real, possibly modified near 0, but our results also apply to exp fenced(- || fenced(x)α fenced(log || fenced(x))β), α < 1. These types of weights exhibit interesting properties largely because they are either indeterminate or are close to the border between determinacy and indeterminacy in the classical moment problem.
| اللغة الأصلية | الإنجليزيّة |
|---|---|
| الصفحات (من إلى) | 129-168 |
| عدد الصفحات | 40 |
| دورية | Journal of Approximation Theory |
| مستوى الصوت | 147 |
| رقم الإصدار | 2 |
| المعرِّفات الرقمية للأشياء | |
| حالة النشر | نُشِر - أغسطس 2007 |
بصمة
أدرس بدقة موضوعات البحث “Orthogonal polynomials for weights close to indeterminacy'. فهما يشكلان معًا بصمة فريدة.قم بذكر هذا
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