Results 31 to 40 of about 63 (62)

Promocijas darbs [PDF]

open access: yes
Elektroniskā versija nesatur pielikumusŠajā disertācijā tiek pētīti vairāki daļējie sakārtojumi noteiktās (iespējams, vienpusēju) Rikarta gredzenu klasēs, kurās ir spēkā kāds nosacījums, kas nodrošina, ka gredzens, kuram var nebūt involūcija, dažos ...
Cremer, Insa Ingeborg Charlotte
core  

© Hindawi Publishing Corp. EXTENDED BLOCKER, DELETION, AND CONTRACTION MAPS ON ANTICHAINS

open access: yes, 2002
Families of maps on the lattice of all antichains of a finite bounded poset that extend the blocker, deletion, and contraction maps on clutters are considered. Influence of the parameters of themaps is investigated.
Andrey O. Matveev
core  

HOMOTHETIC INTERVAL ORDERS

open access: yes, 2008
We give a characterization of the non-empty binary relations  on a N∗-set A such that there exist two morphisms of N∗-sets u1, u2: A → R+ verifying u1 ≤ u2 and x  y ⇔ u1(x)>u2(y). They are called homothetic interval orders.
Marc Le Menestrel
core  

The Page Number Problem for Partially Ordered Sets

open access: yes, 2013
Umieszczenie grafu w książce jest definiowane przez kolejność jego wierzchołków na grzbiecie książki i przyporządkowanie jego krawędzi stronom książki tak, aby na żadnej stronie krawędzie nie przecinały się. Umieszczenie zbioru częściowo uporządkowanego (
Kwiatkowska, Anna Beata
core  

A poset hierarchy

open access: yesOpen Mathematics, 2006
Džamonja Mirna, Thompson Katherine
doaj   +1 more source

Ideals which generalize (v 0)

open access: yesOpen Mathematics, 2010
Kalemba Piotr, Plewik Szymon
doaj   +1 more source

Ideals in distributive posets

open access: yesOpen Mathematics, 2011
Batueva Cyndyma, Semenova Marina
doaj   +1 more source

A note on Stone join-semilattices

open access: yesOpen Mathematics, 2011
Nimbhorkar Shriram, Rahemani Anwari
doaj   +1 more source

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