Aciphylla trifoliolataPetrie andA. stannensissp. nov.

Genetic Variation in Aciphylla Glaucescens (apiaceae)

New Zealand Journal of Ecology (1999) 23(1): 61-67 ©New Zealand Ecological Society A. MITCHELL, K. HOGAN and H. CHAPMAN Ecology and Entomology Group. Soils, Plants and Ecological Sciences Division, Lincoln University, P.O. Box 84, Lincoln, New Zealand Landcare Research, P.O. Box 69, Lincoln, New Zealand Department of Plant and Microbial Sciences, University of Canterbury, Private Bag 4800, Chri...

Weighted Clement - Type Interpolation Anda

One of the main mathematical tools in the residual based a posteriori error analysis is a weak interpolation operator due to Cl ement. Based on a partition of unity, we introduce a modiied weak interpolation operator which enjoys a further orthogonality property. As a consequence , the volume contribution in standard residual based a posteriori error estimates can be replaced by a smaller one w...

Landau ' s Inequalities for Tournament Scores anda

Ao and Hanson, and Guiduli, Gyy arff as, Thomass e and Weidl independently, proved the following result: For any tournament score sequence S = (s 1 ; s 2 ; : : : ; s n) with s 1 s 2 s n , there exists a tournament T on vertex set f1; 2; : : : ; ng such that the score of each vertex i is s i and the sub-tournaments of T on both the even and the odd indexed vertices are transitive in the given or...

journalLONG - TIME ERROR ESTIMATION ANDA STABILITY - SMOOTHING

معرفی دو گونه جدید Williamsonia iranica sp. nov . و sp. nov. Ginkgoites persica

    عضو قدیر از بالایی ترین بخش سازند نایبند به سن رتین (تریاس بالایی) دارای برونزدگی بسیار خوبی در منطقه معادن پروده، جنوب غرب شهر طبس می باشد. دو نمونه جدید از ماکروفسیل‌های گیاهی این سازند متعلق به بازدانگان برای اولین بار از عضو قدیر سازند نایبند مورد شناسایی قرارگرفت که در این مقاله معرفی می‌شوند. این گونه‌ها عبارتند از: Williamsonia iranica sp. nov. متعلق به راسته بنتیتال‌ها (Order Bennet...