Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Ivan Trendafilov"'
Publikováno v:
“TOPICAL ISSUES OF THERMOPHYSICS, ENERGETICS AND HYDROGASDYNAMICS IN THE ARCTIC CONDITIONS”: Dedicated to the 85th Birthday Anniversary of Professor E. A. Bondarev.
Publikováno v:
“TOPICAL ISSUES OF THERMOPHYSICS, ENERGETICS AND HYDROGASDYNAMICS IN THE ARCTIC CONDITIONS”: Dedicated to the 85th Birthday Anniversary of Professor E. A. Bondarev.
Autor:
Radoslav Tzvetkov, Ivan Trendafilov
Publikováno v:
THERMOPHYSICAL BASIS OF ENERGY TECHNOLOGIES (TBET 2020).
In this paper we introduce the notion of derivation in product (direct product) of additively idempotent semirings. These semirings are useful and important tools in diverse areas such as design of switching circuits, automata theory, information sys
Autor:
Ivan Trendafilov, Dimitrinka Vladeva
Publikováno v:
PROCEEDINGS OF THE 45TH INTERNATIONAL CONFERENCE ON APPLICATION OF MATHEMATICS IN ENGINEERING AND ECONOMICS (AMEE’19).
The endomorphism semiring eCn of a finite chain can be represented as a simplex. An arbitrary subsemiring of eCn is a simplex σ(n){a0, …, ak−1} with vertices a0, …, ak−1. For m ≠ n, m ≤ k, we consider another simplex σ(m){a0, …, ak−
Autor:
Ivan Trendafilov, Dimitrinka Vladeva
Publikováno v:
PROCEEDINGS OF THE 45TH INTERNATIONAL CONFERENCE ON APPLICATION OF MATHEMATICS IN ENGINEERING AND ECONOMICS (AMEE’19).
Idempotent and nilpotent elements are important in the structure of semigroups and semirings. In this article, we obtain some results of nilpotent endomorphisms of an infinite chain which applies to (multiplicatively) idempotents of the endomorphism
Autor:
Simeon A. Antonov, Diana Yonova, Veselka V Stoinova, Mariya T Nedevska, Ivan Trendafilov, Evgueniy Vazelov
Publikováno v:
The International Journal of Artificial Organs. 37:308-314
Background Cardiovascular calcification (CVC) in hemodialysis patients (HDP) causes cardiovascular pathology. Up until now very few drugs and therapeutic interventions have been able to reduce cardiovascular calcium deposits in hemodialysis patients
Autor:
Dimitrinka Vladeva, Ivan Trendafilov
Publikováno v:
AIP Conference Proceedings.
One of the natural questions which often appeared in algebra and analysis whether a map can be defined by its “local” properties. In this paper we consider maps which acts like a derivation on semirings of a special type.
Publikováno v:
Nephrology Dialysis Transplantation. 32:iii638-iii638
Autor:
Ivan Trendafilov, Dimitrinka Vladeva
Publikováno v:
ISRN Algebra.
Idempotents yield much insight in the structure of finite semigroups and semirings. In this article, we obtain some results on (multiplicatively) idempotents of the endomorphism semiring of a finite chain. We prove that the set of all idempotents wit
Autor:
Dimitrinka Vladeva, Ivan Trendafilov
Publikováno v:
AIP Conference Proceedings.
This paper is a continuation of [8]. Here we find some combinatorial results for strings and triangles.