Serbian Academy of Sciences and Arts

Refinements of q-Berezin radius inequalities

We present refinements of q-Berezin radius inequalities for bounded linear operators on reproducing kernel Hilbert spaces. Using the Berezin number, the Berezin–Crawford number, the Berezin norm, and the quantity $$\widetilde{m}(P),$$ we derive upper bounds whose coefficient func...

Labeling of PET and PP nanoplastic test materials with non-leachable π-conjugated fluorescent polymers

<title>Abstract</title> Micro- and nanoplastic (MNP) particles are widely present in nature, mainly due to the extensive overuse of single-use plastics combined with poor waste management. Despite the diversity in the environment, many experimental studies still rely almost exclu...