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Algebarske strukture oslabljenih mreža i primene

Algebraic structures of weakened lattices and applications

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2001
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Author
Lazarević, Vera
Mentor
Tepavčević, Andreja
Committee members
Janez, Ušan
Tepavčević, Andreja
Žižović, Mališa
Šešelja, Branimir
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Abstract
Ako je  Lalgebarska mreža i  a kodistributivan elemenat u L, onda sve klase kongruencije  (pa indukovane homomorfizmom  ma : xi— >  a   A x imaju najveće elemente. Najveći elemenat klase kojoj  x E Lpripada je označen sa  x.Ako je  *a binarna op­eracija definisana sa x *ay = (x A y)  V  (x A y),onda je istraživana struktura  (L, *a), i odgovarajući poset ( L, <»). Kao primer takve strukture posmatrana je algebra slabih kongruencija  (CwA, *a), gde je *a specijalna grafička kompozicija. Dobijeni rezultati daju prirodne posledice u strukturi slabih kongruencija. Data je primena ovih rezultata u univerzalnoj algebri. Njihovom primenom karakterizuje se CEP i Hamiltonovo svojstvo. Dat je potreban i dovoljan uslov da poset (L, < -) bude mreža i ovi rezultati su primenjeni na mrežu slabih kongruencija.
If  Lis an algebraic lattice and  a codistributive element in  L,then all the classes of the congruences  4>a determined by the homomorphism  ma :  x  \— >  a Ax   have top elements. The top element of the class which to belongs an  x   €  Lis denoted by  x.   If *a is a binary operation defined by  x  *ay=  (xA y)  V  (xA y),then we investigate the structure  (L,*a), and the corresponding poset  (L, < t ). Asan example of such a structure we observe an algebra of weak congruences ( C w A , * a),where *a is a special graphical composition. We obtain natural conse­ quences of the mentioned results to the structure weak congruences. An application in universal algebra is presented, for example, we characterized CEP and Hamiltonian property. Necessary and sufficient conditions for a poset  (L,<*) to be a lattice are given, and the results are applied in the case of weak congruence lattices.
Faculty:
Универзитет у Новом Саду, Природно-математички факултет
Date:
13-07-2001
Keywords:
algebra / algebra / operacija / poredak / poset / specijalni elementi mreže (algebre) / slabe kongruencije / CIP / CEP / 10 CIP / *CIP / UCEP / latisoid / grafička kompozicija / operation / ordering / poset / special lements of the lattice (algebraic) / weak congruence / CIP / CEP / tuCIP / *CIP / UCEP / latticoid / graphical composition
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Handle
https://hdl.handle.net/21.15107/rcub_nardus_17922
URI
https://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija159584308523396.pdf?controlNumber=(BISIS)73361&fileName=159584308523396.pdf&id=16300&source=NaRDuS&language=sr
https://www.cris.uns.ac.rs/record.jsf?recordId=73361&source=NaRDuS&language=sr
https://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije159351729850164.pdf?controlNumber=(BISIS)73361&fileName=159351729850164.pdf&id=15916&source=NaRDuS&language=sr
/DownloadFileServlet/IzvestajKomisije159351729850164.pdf?controlNumber=(BISIS)73361&fileName=159351729850164.pdf&id=15916
https://nardus.mpn.gov.rs/handle/123456789/17922

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