�. �. ��, �. ��, “� �� ”, �� , 51:5 (2012), 652–667; Algebra and Logic, 51:5 (2012), 435–444 (original) (raw)

	��
	��
	��
	��-��
	��

	��
	��

	RSS
	��
	��
	��
	�� RSS

�� :
��:
��:
��:
��:
��

�� :
��:
��:
��
��
	�� ?
	��

�� 5 �� (�� 5 ��)

� ��

�. �. ��a, �. ��b

a Dep. Math., Univ. Chicago, Chicago, IL, USA
b Dep. Comput. Sci., Univ. Auckland, Auckland, NEW ZEALAND

��: �� . � �� , �� , �� , �� . �� , �� , �� . �� , ��, �� . �� , �� .

�� : �� , �� .

��: 16.12.2011

�� :

�� : ��

��: 510.53+512.53

�� : �. �. ��, �. ��, “� �� ”, �� , 51:5 (2012),

652–667

; Algebra and Logic, 51:5 (2012),

435–444

�� AMSBIB

\RBibitem{HirKho12} \by �.~�.~��, �.~�� \paper � �� \jour �� \yr 2012 \vol 51 \issue 5 \pages 652--667 \mathnet{http://mi.mathnet.ru/al556} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=3075105} \zmath{https://zbmath.org/?q=an:06138169} \transl \jour Algebra and Logic \yr 2012 \vol 51 \issue 5 \pages 435--444 \crossref{https://doi.org/10.1007/s10469-012-9203-8} \isi{https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=Publons&SrcAuth=Publons_CEL&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=000312401000006} \scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-84871388231}

�� :

�� 5 ��x:

Algebra and Logic

�� :
�� :	224
PDF �� :	59
�� :	43
�� :	8