In this article, some new generalized nonlinear versions are established for integral and discrete analogues of inequalities, with advanced arguments that provide explicit bounds on unknown functions.

Oscillation criteria are established for nonlinear matrix differential equations of the form [ A(x)V' ]' + B(x, V, V')V = 0 and associated differential inequalities. The hypothesis used recently by E.

This paper examines life-cycle earnings risk and income inequality in Japan using municipal administrative tax records covering the period 2011–2021. We estimate an age-dependent quantile model that ...