Zobrazeno 1 - 10
of 580
pro vyhledávání: '"P. Cegielski"'
We study in general algebras Gratzer's notion of congruence preserving function, characterizing functions in terms of stability under inverse image of particular Boolean algebras of subsets generated from any subset of the algebra. Weakening Gratzer'
Externí odkaz:
http://arxiv.org/abs/2410.03785
Autor:
Cegielski, Andrzej
We give properties of strict pseudocontractions and demicontractions defined on a Hilbert space, which constitute wide classes of operators that arise in iterative methods for solving fixed point problems. In particular, we give necessary and suffici
Externí odkaz:
http://arxiv.org/abs/2307.07337
Autor:
Ole Kristian Greiner-Tollersrud, Máté Krausz, Vincent Boehler, Aikaterini Polyzou, Maximilian Seidl, Ambra Spahiu, Zeinab Abdullah, Katarzyna Andryka-Cegielski, Felix Immunuel Dominick, Katrin Huebscher, Andreas Goschin, Cristian R. Smulski, Eirini Trompouki, Regina Link, Hilmar Ebersbach, Honnappa Srinivas, Martine Marchant, Georgios Sogkas, Dieter Staab, Cathrine Vågbø, Danilo Guerini, Sebastian Baasch, Eicke Latz, Gunther Hartmann, Philippe Henneke, Roger Geiger, Xiao P. Peng, Bodo Grimbacher, Eva Bartok, Ingrun Alseth, Max Warncke, Michele Proietti
Publikováno v:
Cell Reports, Vol 43, Iss 11, Pp 114899- (2024)
Summary: Although adenosine deaminase 2 (ADA2) is considered an extracellular ADA, evidence questions the physiological relevance of this activity. Our study reveals that ADA2 localizes within the lysosomes, where it is targeted through modifications
Externí odkaz:
https://doaj.org/article/f6e14d70f0b648c3aca83261512b83d8
Autor:
Cegielski, Andrzej, Censor, Yair
We consider a Hilbert space that is a product of a finite number of Hilbert spaces and operators that are represented by "componental operators" acting on the Hilbert spaces that form the product space. We attribute operatorial properties to the comp
Externí odkaz:
http://arxiv.org/abs/2111.02830
In this paper, we analyze the convergence %semi-convergence properties of projected non-stationary block iterative methods (P-BIM) aiming to find a constrained solution to large linear, usually both noisy and ill-conditioned, systems of equations. We
Externí odkaz:
http://arxiv.org/abs/2111.00344
Publikováno v:
Fundamenta Informaticae, Volume 186, Issues 1-4: Trakhtenbrot's centenary (October 21, 2022) fi:8962
A function on an algebra is congruence preserving if, for any congruence, it maps pairs of congruent elements onto pairs of congruent elements. An algebra is said to be affine complete if every congruence preserving function is a polynomial function.
Externí odkaz:
http://arxiv.org/abs/2106.12846
Publikováno v:
Discrete Mathematics & Theoretical Computer Science, vol. 23 no. 2, special issue in honour of Maurice Pouzet, Special issues (November 4, 2021) dmtcs:6890
A function on an algebra is congruence preserving if, for any congruence, it maps pairs of congruent elements onto pairs of congruent elements. We show that on the algebra of binary trees whose leaves are labeled by letters of an alphabet containing
Externí odkaz:
http://arxiv.org/abs/2011.03925
A function on an algebra is congruence preserving if, for any congruence, it maps pairs of congruent elements onto pairs of congruent elements. We show that on the algebra of complete binary trees whose leaves are labeled by letters of an alphabet co
Externí odkaz:
http://arxiv.org/abs/2006.04540
Looking at some monoids and (semi)rings (natural numbers, integers and p-adic integers), and more generally, residually finite algebras (in a strong sense), we prove the equivalence of two ways for a function on such an algebra to behave like the ope
Externí odkaz:
http://arxiv.org/abs/2004.05943
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