Abstract
If A∈ M n is totally positive (TP), we determine the maximum open interval I around the origin such that, if μ∈ I , then A− μI is TP. If A is TP, μ∈ I and A− μI= LU, then B defined by B− μI= UL is TP, and has the same total positivity interval I . If A is merely nonsingular and totally nonnegative (TN), or oscillatory, there need be no such interval in which A− μI is TN.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
