vol. 38, no. 4 (2018)
Positive definite functions and dual pairs of locally convex spaces
Daniel Alpay, Saak Gabriyelyan
Opuscula Math. 38, no. 4 (2018), 463-482,
https://doi.org/10.7494/OpMath.2018.38.4.463
On spectra of quadratic operator pencils with rank one gyroscopic linear part
Olga Boyko, Olga Martynyuk, Vyacheslav Pivovarchik
Opuscula Math. 38, no. 4 (2018), 483-500,
https://doi.org/10.7494/OpMath.2018.38.4.483
Banach *-algebras generated by semicircular elements induced by certain orthogonal projections
Ilwoo Cho, Palle E. T. Jorgensen
Opuscula Math. 38, no. 4 (2018), 501-535,
https://doi.org/10.7494/OpMath.2018.38.4.501
On the non-existence of zero modes
Daniel M. Elton
Opuscula Math. 38, no. 4 (2018), 537-556,
https://doi.org/10.7494/OpMath.2018.38.4.537
Linear Sturm-Liouville problems with Riemann-Stieltjes integral boundary conditions
Qingkai Kong, Thomas E. St. George
Opuscula Math. 38, no. 4 (2018), 557-571,
https://doi.org/10.7494/OpMath.2018.38.4.557
Toeplitz versus Hankel: semibounded operators
Dmitri R. Yafaev
Opuscula Math. 38, no. 4 (2018), 573-590,
https://doi.org/10.7494/OpMath.2018.38.4.573