Volume 10, Issue 4 Alan Carey Fritz Gesztesy Galina Levitina Fedor Sukochev On the index of a non-Fredholm model operator Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Alan Carey Fritz Gesztesy Galina Levitina Fedor Sukochev Find more articles with the same keywords Fredholm and Witten index spectral shift function Find more articles with the same subject classes 47A53 58J30 47A10 47A40