Carlone, Raffaele; Finco, Domenico Expansion of the resolvent in a Feshbach model. (English) Zbl 1414.81110 Rend. Mat. Appl., VII. Ser. 39, No. 2, 241-255 (2018). MSC: 81Q12 35J10 81U35 47A10 PDFBibTeX XMLCite \textit{R. Carlone} and \textit{D. Finco}, Rend. Mat. Appl., VII. Ser. 39, No. 2, 241--255 (2018; Zbl 1414.81110) Full Text: arXiv Link
Cacciapuoti, Claudio; Fermi, Davide; Posilicano, Andrea On inverses of Krein’s \(\mathcal{Q}\)-functions. (English) Zbl 07064704 Rend. Mat. Appl., VII. Ser. 39, No. 2, 229-240 (2018). MSC: 47B25 47A56 47A10 PDFBibTeX XMLCite \textit{C. Cacciapuoti} et al., Rend. Mat. Appl., VII. Ser. 39, No. 2, 229--240 (2018; Zbl 07064704) Full Text: arXiv Link
Adami, Riccardo; Dovetta, Simone One-dimensional versions of three-dimensional system: ground states for the NLS on the spatial grid. (English) Zbl 1411.35262 Rend. Mat. Appl., VII. Ser. 39, No. 2, 181-194 (2018). MSC: 35R02 35Q55 81Q35 49J40 81Q80 PDFBibTeX XMLCite \textit{R. Adami} and \textit{S. Dovetta}, Rend. Mat. Appl., VII. Ser. 39, No. 2, 181--194 (2018; Zbl 1411.35262) Full Text: arXiv Link
Albeverio, Sergio; Figari, Rodolfo Quantum fields and point interactions. (English) Zbl 1414.81267 Rend. Mat. Appl., VII. Ser. 39, No. 2, 161-180 (2018). MSC: 81V19 81Q10 81Q15 47B25 70F07 46N50 PDFBibTeX XMLCite \textit{S. Albeverio} and \textit{R. Figari}, Rend. Mat. Appl., VII. Ser. 39, No. 2, 161--180 (2018; Zbl 1414.81267) Full Text: Link