... N- acetylglucosaminidase Correspondence G. Buist, Department of Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Kerklaan 30, 9751 NN Haren, the Netherlands Fax: ... Foster 2 and Jan Kok 1 1 Department of Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, the Netherlands 2 Department of Molecular Biol...
Ngày tải lên: 19/02/2014, 18:20
... vector in the finite vector space GF(q) n is the number of nonzero components it contains. We show that for a certain range of parameters (n, j, k, w) the number of k-dimensional subspaces having j(q ... remind the reader of the meaning of uniformity. A function f : N → N goes to 0 as n →∞, uniformly over A ⊆ N ,provided sup a∈A n |f (n, a)|→0asn→∞, where A n = {a ∈ N ...
Ngày tải lên: 07/08/2014, 06:20
Báo cáo toán học: "n the number of distributive lattices" ppsx
... of consistency with the forerunners, we prefer here a downward numbering of elements. Of course, an upward numbering would work as well. Here, an n- poset is a poset P with underlying set n = {0, ... lattices Marcel Ern´e, Jobst Heitzig, and J¨urgen Reinhold Institut f¨ur Mathematik, Universit¨at Hannover, Welfengarten 1, D-30167 Hannover, Germany {erne,heitzig,reinhold}@math.uni-hannover....
Ngày tải lên: 07/08/2014, 06:23
Báo cáo toán học: "On the crossing number of Km,n" potx
... of G in the plane, where the crossing number cr D of a drawing D is the number of non-adjacent edges that have a crossing in the drawing. Definition 3 A good drawing a graph G is a drawing where ... best known lower bound in the general case was the one proved by Kleitman [2] : cr(K m ,n ) ≥ (1/5)(m)(m − 1) n/ 2 (n − 1)/2. Richter and Thomassen discussed the relation between the cross...
Ngày tải lên: 07/08/2014, 07:21
Báo cáo toán học: "Counting Rooted Trees : The Universal Law t(n) ∼ Cρ−nn−3/2" potx
... above functional equation to obtain the set equation T = n 0 E n + n T, and thus T − d = n 0 E n + (n −1)d + n (T − d) . Since q = gcd(T −d) it follows that q|r := gcd n E n + (n −1)d . To ... possibilities for defining interesting subclasses as the fixpoint of a class construction, where the construc- tions used are combinations of a few standard constructions...
Ngày tải lên: 07/08/2014, 13:21
Báo cáo toán học: " The Number of [Old-Time] Basketball Games with Final Score n:n where the Home Team was never losing but also never ahead by more than w Point" pot
... fifth order nonlinear recurrence relation in w that implies both its numerator and denominator satisfy a linear recurrence relation. 1 Introduction We consider walks in the two-dimensional square ... very similar second order recurrence relation in n with constant coefficients, viz. T n (z) = 2zT n 1 (z) − T n 2 (z). (7) As an aside, note that if w = 2, the number of walks ending at (n,...
Ngày tải lên: 07/08/2014, 15:22
Báo cáo toán học: "Counting the number of elements in the ˜ mutation classes of An −quiver" ppt
... type A n (resp. D n , E n ). One can easily check that the oriented n- cycle is also of type D n , as has been done in [12, Type IV]. Two non-oriented n- cycles are mutation equivalent if and only if ... oriented 3-cycle s counting for r 2 are indicated by and the oriented 3-cycles counting for s 2 are indicated by . Consider the following realization of a quiver in Q 16 : the e...
Ngày tải lên: 08/08/2014, 14:23
Báo cáo toán học: "Counting words by number of occurrences of some patterns" pps
... comments. References [1] G.E. Andrews. MacMahon’s Partition Analysis: II Fundamental Theorems. Ann . Combin., 4(3/4):327–3 38, 2000. [2] P. Br¨and´en and T. Mansour. Finite automata and pattern avoidance in words. ... the ordinary generating function for the number of partitions of n into qth order binomial coefficients. This can be easily seen since the terms of C(x) in (6) correspond to s...
Ngày tải lên: 08/08/2014, 14:23
Cây chè và kỹ thuật chế biến
... Ninh bìnhv.v thường s n xuất chè tươi, chè n cho sinh hoạt hàng ngày của nh n d n trong vùng. Ngoài ở mi n Bắc, hi n nay c n một số tỉnh trung du cũng đã phát tri n thành những vùng chè mới ... tri n vào những n m 1825 và phát tri n nhiều vào những n m 1930. Riêng vùng ở Komtum cao nguy n mi n Tây nam trung bộ thì chè có tương đối nhiều vào n m 1923, nhưng n i chung, chè...
Ngày tải lên: 11/08/2012, 12:43