activity
20132026
most citedCharacterizations of generalized poles by pole cancellation functions of higher order

10 citations · 23 across the 11 of their papers we have counts for

collaborators

11 papers

math.CV2026

Construction of Pole Cancellation Functions at Ordinary Poles of Operator-Valued Functions

Muhamed Borogovac

A pole of order at of a regular operator valued function is investigated. We provide a charac…

math.FA2026

Characterization of Jordan Vectors of Operator-Valued Functions with Applications in Differential Equations

Muhamed Borogovac

A well-known characterization of Jordan vectors of a matrix polynomial is generalized to a characterization of Jordan vectors of the operator-valued function at an ei…

math.CV2025

Root functions of a meromorphic matrix function and applications

Muhamed Borogovac

A practical method is presented for determining root and pole cancellation functions of a matrix function meromorphic on the extended complex plane $\bar{\mathbb{C}}:=\mathb…

math.FA2024★ 1 cited

Novel approach to root functions of matrix polynomials with applications in differential equations and meromorphic matrix functions

Muhamed Borogovac

In the first part of the paper, we address an invertible matrix polynomial and its inverse . We present a method for obtaining a canonical set of r…

math.FA2023

Green's boundary relation model in a Krein space

Muhamed Borogovac

Given Krein and Hilbert spaces and , respectively, the concept of the boundary triple $Π=(\mathca…

math.FA2021

Characterization of Weyl functions in the class of operator-valued generalized Nevanlinna functions

Muhamed Borogovac

We provide the necessary and sufficient conditions for a generalized Nevanlinna function () to be a Weyl function (also known as a Weyl-Ti…

math.FA2020★ 4 cited

Reducibility of self-adjoint linear relations and application to generalized Nevanlinna functions

Muhamed Borogovac

Necessary and sufficient conditions for reducidibility of a self-adjoint linear relation in a Krein space are given. Then a generalized Nevanlinna function , represented by a se…

math.FA2020★ 5 cited

Inverse of generalized Nevanlinna function that is holomorphic at infinity

Muhamed Borogovac

Let be a Hilbert space and let be the linear space of bounded operators in . In this…

math.OC2015★ 3 cited

Two Applications of Brouwer's Fixed Point Theorem: in Insurance and in Biology Models

Muhamed Borogovac

In the first part of the article, a new interesting system of difference equations is introduced. It is developed for re-rating purposes in general insurance. A nonlinear transform…

math.FA2015

Desirable Decompositions of Generalized Nevanlinna Functions

Muhamed Borogovac

For a given generalized Nevanlinna function , we study decompositions that satisfy: ; , and $κ_{1}+…

math.FA2013★ 10 cited

Characterizations of generalized poles by pole cancellation functions of higher order

Muhamed Borogovac, Annemarie Luger

In this paper the analytic characterization of generalized poles of operator valued generalized Nevanlinna functions (including the length of Jordan chains of the representing rela…