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"I liked the algebraic way of looking at things.
I’m additionally fascinated when the algebraic method is applied to infinite objects”.

Irwing Kaplansky

The following report

Bohdan Zabavsky

Adequate properties of the elements with almost stable range 1 of a commutative elementary divisor domain

October 19, 2018 at 13:30 in Lecture Room 372

Let R — commutative elementary divisor domain which is not a ring of stable range 1. Then exist element a∈R with almost stable range 1 (i.e. for any elements b,c∈R such that aR+bR+cR=R exist elements r that aR+(br+c)R=R). In this report we describe algebraic properties these elements r∈R. Lets note that a commutative elementary divisor domain of stable range 1 is 2-Euclidean domain of stable range 1.

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Department of Algebra and Logic
Faculty of Mechanics and Mathematics
Ivan Franko National University of L'viv
1 Universytetska Str., 79000 Lviv, Ukraine
Tel: (+380 322) 394 172
E-mail: oromaniv at franko.lviv.ua

Scientific seminar, May, 2018