Tootfinder

I've received more SMS spam than ever since the "Likely Spammer" label was introduced by Comreg.
Including a new one this morning about rescheduling a DPD delivery, which weirdly doesn't appear on my phone, but only on my Watch as a notification...
I swear they are attempting to solve this in the most bare minimum way possible and yet... they are still failing.
#Smishing

Dear spammers, could you please fix your scripts, so that when the mail server replies:
452 4.3.1 Insufficient system storage
Then you QUIT instead of following up with more crap? Thank you.
#spam

Cyclic Operators, Linear Functionals and RKHS
Yi Wang
https://arxiv.org/abs/2507.17358 https://arxiv.org/pdf/2507.17358

Cyclic Operators, Linear Functionals and RKHS
Given a commuting $n$-tuple of bounded linear operators on a Hilbert space, together with a distinguished cyclic vector, Jim Agler defined a linear functional $Λ_{\mathbf{T},h}$ on the polynomial ring $\mathbb{C}[\mathbf{z},\bar{\mathbf{z}}]$. ``Near subnormality properties'' of an operator $T$ are translated into positivity properties of $Λ_{T,h}$. In this paper, we approach ``near subnormality properties'' in a different way by answering the following question: when is $Λ_{\mathbf{T},h}$ g…