Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Mati Kilp"'
Autor:
Mati Kilp
Publikováno v:
Semigroup Forum. 91:663-674
In two recent papers by the author for pomonoids, which as monoids are completely simple semigroups with adjoined identity, or semilattices, conditions under which their Rees factor \(S\)-posets satisfy property \((\mathrm{P}_w)\) were found. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be845c5ca62af4384a2d54cac09fdf64
https://doi.org/10.1007/s00233-014-9673-1
https://doi.org/10.1007/s00233-014-9673-1
Autor:
Mati Kilp
Publikováno v:
Acta et Commentationes Universitatis Tartuensis de Mathematica. 17:103-111
Between dierent and relatively well investigated so-called flatness properties of S -posets there is a property called property (P w ) which, so far, has not received much attention. In a recent paper by the author pomonoids from a subclass of comple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08dc49fc4091ac4a54c017075fb174b1
https://doi.org/10.12697/acutm.2013.17.09
https://doi.org/10.12697/acutm.2013.17.09
Autor:
Mati Kilp
Publikováno v:
Semigroup Forum. 86:592-602
Between different and relatively well investigated so-called flatness properties of S-posets there is a property called property (\({\rm P}_{w}\)) which, so far, has not received much attention. In this paper, we characterize pomonoids from a subclas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fdc992a899efc2ca57ef0cd230bf974
https://doi.org/10.1007/s00233-013-9472-0
https://doi.org/10.1007/s00233-013-9472-0
Publikováno v:
Communications in Algebra. 34:1291-1317
Let S be a partially ordered monoid, or briefly, pomonoid. A right S-poset (often denoted A S ) is a poset A together with a right S-action (a,s)↝ as that is monotone in both arguments and that satisfies the conditions a(st) = (as)t and a1 = 1 for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d94384e11e608d66f57bcc3afd2cb46
https://doi.org/10.1080/00927870500454547
https://doi.org/10.1080/00927870500454547
Autor:
Ulrich Knauer, Mati Kilp
Publikováno v:
Communications in Algebra. 33:1147-1151
S. Bulman-Fleming (1992) presented necessary and sufficient conditions under which an amalgam of two copies of a monoid by a proper right ideal is flat, weakly flat, or principally weakly flat. In this note, a similar problem is considered for other
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d182c80cd80fea1d0d096a238657544
https://doi.org/10.1081/agb-200053830
https://doi.org/10.1081/agb-200053830
Autor:
Mati Kilp, Sydney Bulman-Fleming
Publikováno v:
Communications in Algebra. 30:1475-1498
In 1971, Stenstrom proved that the strongly flat right acts A S over a monoid S (that is, the acts that are directed colimits of finitely generated free acts) are those for which the functor A S ⊗ - (from the category of left S-acts into the catego
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4a70c49248089dfdd5870e76fabf883
https://doi.org/10.1080/00927870209342392
https://doi.org/10.1080/00927870209342392
Autor:
Mati Kilp, Ulrich Knauer
Publikováno v:
Acta et Commentationes Universitatis Tartuensis de Mathematica. 5:43-57
Most of the usual binary graph operations from disjoint union up to the complete product are interpreted categorically, using the categories Gra, CGra and EGra. This way it is proved that these categories have coproducts, products and tensor products
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88863eafeb519b6c815d9ac02a1137c7
https://doi.org/10.12697/acutm.2001.05.04
https://doi.org/10.12697/acutm.2001.05.04
Autor:
Ulrich Knauer, Mati Kilp
Publikováno v:
Semigroup Forum. 63:396-414
Torsionless acts over a monoid S are investigated, in particular torsionless factor acts of 2 -free and 1 -free acts. Monoids over which free or projective acts are torsionless and vice versa are characterized. Some necessary conditions for torsionle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6447e24f3ab206d932707dba39551a2
https://doi.org/10.1007/s002330010018
https://doi.org/10.1007/s002330010018
Publikováno v:
Communications in Algebra. 29:851-878
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c79500b89c34f5c654f57a6fcc7efda
https://doi.org/10.1081/agb-100001548
https://doi.org/10.1081/agb-100001548
Publikováno v:
Communications in Algebra. 29:829-850
Let S be a monoid. A right S-act A is pullback flat (= strongly flat) if the functor A ⊗–(from the category of left S-acts to the category of sets) preserves pullbacks. We investigate possible generalizations of this notion, obtained either by re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c74a4eeddbd316a41d0ef93e665a3ec
https://doi.org/10.1081/agb-100001547
https://doi.org/10.1081/agb-100001547