three steps towards appropriate use of blood
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the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach
abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
15 صفحه اولThree steps towards Gyárfás’ conjecture
Gyárfás conjectured in 1985 that for all k, l, every graph with no clique of size more than k and no odd hole of length more than l has chromatic number bounded by a function of k, l. We prove three weaker statements: • Every triangle-free graph with sufficiently large chromatic number has an odd hole of length different from five; • For all l, every triangle-free graph with sufficiently large ...
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عنوان ژورنال:
فصلنامه پژوهشی خونجلد ۱۱، شماره ۱، صفحات ۱-۳
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