Bi-monotone maps on the set of all variance-covariance matrices with respect to minus partial order

Keplerov trokut, Pitagorin poučak i zlatni rez

Nonlinear Birkhoff-James orthogonality preservers in smooth normed spaces

Generalized circular projections

On isometries with finite spectrum

A variant of Wigner's theorem in normed spaces

Phase-isometries between normed spaces

Hermitian projections on some Banach spaces and related topics

On Wigner's theorem in smooth normed spaces

Pre-Hilbert modules, normed modules and the parallelogram law

Complexifications of real Banach spaces and their isometries

Elementarno određivanje ekstrema funkcije y =(a_1x^2 + b_1x + c_1)/(a_2x^2 + b_2x + c_2)

Conjugations on Banach *-algebras

On Wigner's theorem in strictly convex normed spaces

An inverse eigenvalue problem for isometries

On isometries and projections on some Banach spaces

When is a finite sum of box operators a Hermitian projection?

Surjective linear isometries with finite spectrum

When is a finite sum of box operators on a JB*- triple a Hermitian projection?

On square roots of isometries

Isometries, projections and related maps on JB*- triples

On isometries on some Banach spaces - something old, something new, something borrowed, something blue: Part I and Part II

On superstability of the Wigner equation

On surjective linear isometries with finite spectrum

On isometric roots of isometries

Three topics in isometries

Complexifications of real Banach spaces and their isometries

Preservers of isometries

On square roots of isometries

Isometries with finite spectrum on continuous functions

Generalized n-circular projections on JB*-triples and Hilbert C_0(Ω)-modules

Generalized n-circular projections on JB*-triples

On a Banach space substitute of the orthogonal projections on Hilbert spaces

On projections arising from isometries with finite spectrum on Banach spaces

On generalized n-circular projections

A quantitative version of Herstein's theorem for Jordan *-isomorphisms

Stability of the Wigner equation - a singular case

Generalized tricircular projections on minimal norm ideals in B(H)

Preddiplomski i diplomski sveučilišni studij geologije na PMF-u Sveučilišta u Zagrebu

Stability of the Wigner equation - a singular case

When the average of composition operators being a projection

Generalized Skew Derivations Implemented by Elementary Operators

Orthogonally additive mappings on Hilbert modules

Preddiplomski sveučilišni studij Matematika, smjer nastavnički

Funkcije u nastavi matematike - motivacijski primjeri iz geologije

Derivations, automorphisms and elementary operators

When is the Hermitian/skew-Hermitian part of a matrix a potent matrix?

On (anti-)multiplicative generalized derivations

Generalized bicircular projections via rank preserving maps on the spaces of symmetric and antisymmetric operators

O definiciji i nazivu jedne klase trapeza (ili zašto ne jednakokračan trapez?)

A generalization of the original Jordan - von Neumann theorem

Obrat van Aubelovog teorema

On some functional equations related to bicircular projections

Generalized bicircular projections on JB*-triples

Cayley-Dicksonova konstrukcija

Generalized bicircular projections via the operator equation $\alpha X^2AY^2+\beta XAY+A=0$

Approximately orthogonality preserving mappings on C*-modules

Perturbation of the Wigner equation in inner product C*-modules

Jedan način provjere znanja elementarne geometrije

On Jordan triple derivations and related mappings

On bicircular projections

Bessel and Grüss type inequalities in inner product modules

On the Cauchy-Schwarz inequality and its reverse in semi-inner product C*-modules

G-invariant norms and bicircular projections

Jensenova i kvadratna funkcijska jednadžba

Quadratic functionals and sesquilinear forms

On additivity of centralisers

Učenje, poučavanje i otkrivanje geometrije kroz geometrijske konstrukcije izvedene programom dinamične geometrije

Primjena Raschovog modela na analizu razredbenih ispita

Gruss type inequalities in inner product modules

On a class of projections on *-rings

Quadratic functionals on modules over alternative *-rings

Quadratic functionals on modules over complex Banach-algebras with an approximate identity

Quadratic functionals on modules over *-rings

O jednom sustavu jednadžbi

Osvrt na razredbeni postupak na PMF-MO

On quadratic functionals - from *-rings to a class of Banach *-algebras

Equations arising from Jordan *-derivation pairs

Quadratic Functionals and Sesquilinear Forms

Molnar-dependence in a pre-Hilbert module over an H*-algebra

On redundance of one of the axioms of a generalized normed space

A new approach to the Jordan-von Neumann type theorem for pre-Hilbert modules over H*-algebras

H*-algebre i Hilbertovi H*-moduli

Finsler-Hadwigerova nejednakost i posljedice