vol. 35, no. 3 (2015)

On the eigenvalues of a 2×2 block operator matrix
Mukhiddin I. Muminov, Tulkin H. Rasulov
Opuscula Math. 35, no. 3 (2015), 371-395, http://dx.doi.org/10.7494/OpMath.2015.35.3.371
Generalized Levinson's inequality and exponential convexity
Josip Pečarić, Marjan Praljak, Alfred Witkowski
Opuscula Math. 35, no. 3 (2015), 397-410, http://dx.doi.org/10.7494/OpMath.2015.35.3.397