TRIGONOMETRICAL IDENTITIES AND INEQUALITIES

In this paper we present some new identities and inequalities in triangles and quadrilaterals, continuing the idea from [1].

REVISITING THE POPOVICIU-BOHMAN-KOROVKIN THEOREM

SOME NEW IDENTITIES IN COMBINATORIC

In this paper we introduce some new identities in combinatoric.

ON THE IMAGES OF SOME OPEN SETS HAVING THE NON-EMPTY INTERSECTION PROPERTY

Let E and F be normed spaces, T:E→F and V:E→F satisfying T(O[sub]1[/sub]) intersected with V(O[sub]2[/sub]) is different from Ø for all O[sub]1[/sub],O[sub]2 [/sub]non-empty open subsets of E. In this pape...

OPTIMAL CONCENTRATIONS IN THE ENZYME REACTIONS

This paper contains a particular point of view about the solution of an optimal control problem. The subject is the enzymatic reaction modeled as a dynamical system, when a disturbing external factor is present.