Mihailo Krsti'c

collaborators

5 papers

math.FA2026

Pettis integrability of functions with values in separable symmetrically-normed ideals and related norm estimates

Mihailo KrstiÄ, Matija MiloviÄ, Stefan MiloÅ¡eviÄ

In this paper we will investigate Pettis integrability of $C_{I^}^{\circ} ¦ (H)$ -valued functions. We will study weakly $^{*}$ integrable $B (H)$ -val…

math.FA2026

Strongly Integrable Operator-Valued Functions, Generated Vector Measures and Compactness of Integrals

MiloÅ¡ ArsenoviÄ, Mihailo KrstiÄ, Matija MiloviÄ +1

Gel'fand integral of a family of compact operators on a Hilbert space is not always compact, even with additional property of positivity and commutativity. We prove that integrals…

math.NA2026

Algorithm with variable coefficients for computing matrix inverses

Mihailo KrstiÄ, Mihailo Krstić, Marko D. PetkoviÄ +4

We present a general scheme for the construction of new eficient generalized Schultz iterative methods for computing the inverse matrix. These methods have the form $$ X_{k+1} = X_…

math.FA2025

Extended Cauchy-Schwarz inequalities for $I ¨ $ -elementary transformers in Schatten-von Neumann norm ideals

Danko R. JociÄ, Mihailo KrstiÄ, Milan LazareviÄ +1

Let $q, r, s ⩾ 1$ satisfy $\frac{1}{2 q} + \frac{1}{2 r} = \frac{1}{s}$ and $X \in C_{s} (H)$ . If $(I^»_{n})_{n = 1}^{\infty}, (w_{n})_{n = 1}^{\infty}$ are sequences…

math.FA2025

$q$ -numerical radius of rank-one operators and the generalized Buzano inequality

DuÅ¡an DenÄiÄ, Hranislav StankoviÄ, Mihailo KrstiÄ +1

Here, we study the $q$ -numerical radius of rank-one operators on a Hilbert space $H$ . More precisely, for $q \in [0, 1]$ and $a, b \in H$ , we establish the formu…