On positive periodic solutions of second-order semipositone differential equations
Noureddine FERFAR, Said MAZOUZI
The spectral expansion for the Hahn–Dirac system on the whole line
Bilender PAŞAOĞLU ALLAHVERDIEV, Hüseyin TUNA
$\alpha$-Associated metrics on rigged null hypersurfaces
Ferdinand NGAKEU, Hans Fotsing TETSING
The cissoid of Diocles in the Lorentz–Minkowski plane
Arjumand SEEMAB, Second Mujeeb ur REHMAN
A new general subclass of m-fold symmetric bi-univalent functions given by subordination