We introduce the concepts of K-Riemann integral and radial K-gH-derivative for
intervalvalued functions. We also give some important properties of interval-valued K …

In the present paper we introduce a notion of the K K-Riemann integral as a natural
generalization of a usual Riemann integral and study its properties. The aim of this paper is …

In this paper, a new concept of the subdifferential is defined for nondifferentiable (not
necessarily) locally Lipschitz functions. Namely, the concept of E-subdifferential and the …

For a real valued function f, defined on an open interval I, and an arbitrary real number h, we
consider the lower and upper limits of 2 n (f (y+ h 2 n)− f (y)) whenever n tends to infinity and …

In this paper, strongly $(\alpha, T) $-convex functions, ie, functions $ f: D\to\R $ satisfying the
functional inequality $$ f (tx+ (1-t) y)\leq tf (x)+(1-t) f (y)-t\alpha\big ((1-t)(xy)\big)-(1 …

Let FF be a subfield of RR and X be a linear space over F F. Let D ⊆ XD⊆ X be a nonempty
F F-convex set, D^*:= DD:={xy: x, y ∈ D\} D∗:= DD:= xy: x, y∈ D, and α : D^* → R α: D∗→ R …

The aim of this paper is to extend the notion of K‐Riemann integrability of functions defined
over [a, b] to functions defined over a rectangular box of ℝn. As a generalization of step …

The aim of this paper is to extend the notion of K-Riemann integrability of functions defined
over [a, b] to functions defined over a rectangular box of ℝn. As a generalization of step …

The scientific talks presented at the Seminar focused on the following topics: equations in a
single variable and in several variables, iteration theory, equations on abstract algebraic …

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