... D UniformFlow past a Solid Sphere at Small, but Nonzero, Reynolds Number E HeatTransferfromaBodyofArbitraryShapeinaUniformStreamingFlowat Small, but Nonzero, PecletNumbers F Heat ... Convective HeatTransfer The Analogy with Single-Solute Mass Transfer B HeatTransfer by Conduction (Pe → 0) C HeatTransferfroma Solid Sphere inaUniformStreamingFlowat Small, but Nonzero, Peclet ... Similarity Transformation F Start-Up of Simple Shear Flow G Solidification ata Planar Interface H HeatTransferin Unidirectional Flows Steady-State HeatTransferin Fully Developed Flow through a...
... language and the derivation trees generated by a unification grammar are the ones generated by its ground grammar Thus one can consider a unification grammar as an abbreviation for a ground grammar ... The author conjectures that grammars whose acyclic backbone is depth-bounded in fact generate the same languages as the offline parsable grammars Conclusion The offline parsable grammars apparently ... Fernando, and Warren, David D (1983) Parsing as Deduction In Proceedings of the 21st Annual Meeting of the Association for Computational Linguistics, Cambridge, Massachusetts Sato, Taisuke, and Tamaki,...
... Let A be an arrangement ofa ne hyperplanes in Cn Assume G ≤ Gln (C) is a finite subgroup that leaves A invariant Let ˆ be an additional element that is larger than any element of LA Then, UA ... spaces can be used to approximate the space of monic polynomials of degree n that have no double and no integral root Basic Definitions An arrangement Aof hyperplanes in Cn is a finite set ofa ne ... (C) acts on Cn leaving MA invariant then G also acts on LA as a group of lattice automorphisms If V ∈ LA then the stabilizer StabG (V ) = {g ∈ G | V g = V } of V in G acts on the lower interval...
... nonintersecting lattice paths [6, Cor 2; 15, Theorem 1.2] (see Proposition A1 ) this determinant has an interpretation in terms of nonintersecting lattice paths By a lattice path we mean a lattice path in the ... the q-analogues of [9] have any combinatorial meaning Another interesting development is that Amdeberhan (private communication) observed that Dodgson’s determinant formula (see [18, 17]) can be ... give a short inductive proof of the determinant evaluation in Theorem 10 (and also of its q-analogue in [9]), and could also be used to give an inductive proof of the determinant evaluation in...
... subsets ofa finite group G of order q = |G|, and let τ : A → B be an injective mapping fromA to B Suppose that m + n ≥ q + Then τ √ |A + B| > q − q − Ina certain (rather narrow) range of m, n and ... and in the particular case of R induced by an injective mapping, Theorem improves Theorem To deal with the generalization of the most important and most difficult case of Theorem — that ofsmall ... correspond at least m + n − q pairs (a, b) (with a ∈ A, b ∈ B) such that a + b = s, and for any such pair we have (a, b) ∈ R Totally, we have at least |S|(m + n − q) pairs (a, b) ∈ R On the other hand,...
... Fellowship Author details Department of Mathematics and Statistics, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia 2Center for Advanced Mathematics and Physics, National ... it is desirable to have a generalization of the Riemann and Hurwitz zeta functions in the critical strip, which converges locally uniformly at least A special case of our new generalization converges ... University of Science and Technology H-12, Islamabad, Pakistan Authors’ contributions All authors contributed equally to the manuscript and read and approved the final draft Competing interests The authors...
... journal of combinatorics (1996), #R19 16 [4] G Gasper and M Rahman, An indefinite bibasic summation formula and some quadratic, cubic, and quartic summation and transformation formulas, Canad J Math., ... derivation ofa family of q-Lagrange inversion formulas Al-Salam and Verma [2] employed the fact that the n-th q-difference ofa polynomial of degree less than n is equal to zero, to show that 1− a ... Natl Acad Sci U.S .A. , 75 (1978), 40–42 [8] P Paule, Greatest factorial factorization and symbolic summation, J Symbolic Computation, 20 (1995), 235–268 [9] P Paule and A Riese, A Mathematica...
... four and height at least one in Dyck paths of length 2n and permutations π ∈ Sn satisfying a3 (π) = Remark 11 Thomas [12] gives the following alternative combinatorial proof of Proposition 10 dealing ... component consisting of all diagram squares of rank zero.) It was shown in [10, Lemma 2.2] that the rank ofa square (i, j) which belongs to the diagram ofa permutation in Sn is at least i + j − ... at least m − In particular, π avoids all patterns of Am if and only if every diagram square is of rank at most m − the electronic journal of combinatorics 9(2) (2003), #R14 Proof It follows from...
... probability that A is an independent set in G Again we think of an element z in [d] × [2k]d−1 as designating a line in [2k]d parallel to some axis Let A[ z] be the intersection ofA with this line ... graphs ina family resulting froma more general graph operation Instead of placing copies of the same graph Gi on all the lines parallel to the i-th axis, we may place different graphs froma fixed ... existence of k d -chromatic graphs in G d probabilistically, but an explicit construction can then be obtained by building, for each n, a graph in G d that is “universal” in the sense that it contains...
... · · ≺ xt of length t in (Ai , ≺) is called an Ai -colored chain of length t starting at x0 The length ofa maximal chain starting at x0 is denoted by ℓi (x0 ) If there is no chain of positive ... cyclic graph Gn (Ai ) For an arbitrarya ∈ Ai , let r = |a( k)| If r > 1, then the equivalence class a = {a, a, ka, −ka, , k s− 1a, −k s−1 a} contains 2r elements If r = then a = {a, a} In particular, ... Proof Assume that k, h ∈ P It follows from Lemma that kAi = Ai and hAi = Ai Thus khAi = Ai Hence kh ∈ P, which means that P is closed under multiplication Obvious ∈ P It remains to show that...
... F, with |A| Then (b − a) −1 = aA b A\ {a} Proof Consider the polynomial f (x) = aA b A\ {a} (x − b) (a − b) Its degree is at most |A| − 1, and for all a ∈ A it takes value of Hence f ≡ and the ... 9, pp [4] M Michalek, A short proof of Combinatorial Nullstellensatz, Amer Math Monthly (to appear) [5] U Schauz, Algebraically solvable problems: describing polynomials as equivalent to explicit ... set A1 × × An , or there are at least two points for which f takes a non-zero value Applications In this section we give an example of possible application of Theorem In some sense it generalizes...
... We may now place the bars into this tableau yielding a filling of µ Remark 3.2.10 Observe that travelling froma barless tableau at Level i − down to a barless tableau at Level i, Lemma 3.2.8 asserts ... Since A( µ) equals B(µ), Theorem 2.3.9 implies the cardinality of A( µ) equals the cardinality of the generating set of row-strict tableaux in M µ Also, Φ is a degree-preserving map so A( µ) and ... Since Ah (µ) equals Bh (µ) and the number of paths in the h-tableau-tree is exactly n βi = |M h,µ |, i=1 the cardinality of Ah (µ) equals the cardinality of the generating set of (h, µ)-fillings...
... escaping paths Since there are c cops in the game, the cops control at most 3msds c escaping paths By controlling each escaping path, the cops can decrease the number of free escaping pairs by at ... y)-path is called an escaping path By definition, every escaping path can be written as u1 u2 u3 us+1 , where u1 ∈ X and u2 ∈ A / Claim Each cop controls at most 3msds escaping paths Proof We ... Remark It can be shown using a similar argument that every x ∈ X has at most m neighbors inAA By an escaping pair we mean a pair (x, y) of vertices with x ∈ X and y ∈ Ns (x) We call x the head...
... weights of P and π in L(S) are and 5, respectively, and since L(S) has rank 6, we have that P is a point of the plane π The last part of the statement simply follows from the facts that any plane of ... family of their translation duals References [1] A. A Albert: On the collineation groups of certain non–Desarguesian planes, Portugaliae Mathematica, 18 (1959), 207–224 [2] I Cardinali, O Polverino, ... under addition, containing the zero matrix and whose non–zero elements are invertible In this case, we say that S is a semifield spread set of matrices associated with S and since every matrix of...
... orientation ofa graph is precisely a realization of that graph as a Hasse diagram So, we consider the posets which have Hasse diagram isomorphic to Km,n No such poset can have a chain of length ... that an orientation is acyclic if and only if it is 1balanced Similarly, a graph is a Hasse graph if and only if it has a 2-balanced orientation Recall that the girth ofa graph is the length of ... orientations are necessarily acyclic, but they have the additional property that every weak cycle has at least edges oriented both forward and backward, due to the fact that Hasse diagrams include...
... interruption/resuming for short period of time is negligible Main result (2. 8a) is the observation that about fold variation of the demand of oxygen can be satisfied without variation of blood flow by ... the range of and is from to Introduced stochastic characteristics of microcirculation determinate also the fraction of open microvessels, no Under a steady state condition, the fraction of microvessels ... reveals that both stochastic characteristics, b and μ, are included into the expression for oxygen consumption To estimate possible influence of b and μ we should have the ranges of the variation...
... 1−t 1+t to obtain Thus we only need to evaluate the integral I = to this is to make the change of variables x ← I= arctan = Hence, I = π π 1−t 1+t dt = 1+t (5) “easy” way dt π − arctan t 1+t dt ... n lim Mathematical Reflections (2010) f k=1 k n ϕ(k) = π2 xf (x) dx (4) Choosing f (x) = arctan x x(1+x) n lim n→∞ k=1 we conclude that arctan(k/n) ϕ(k) = k(n + k) π arctan x dx 1+x arctan x 1+x ... An Introduction to the Theory ofNumbers (5th ed.), Oxford University Press (1980) Omran Kouba Department of Mathematics Higher Institute for Applied Sciences and Technology P.O Box 31983, Damascus,...