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COMBINATORICS
1999
70views more  COMBINATORICS 1999»
8 years 5 months ago
Derivative Polynomials, Euler Polynomials, and Associated Integer Sequences
Let Pn and Qn be the polynomials obtained by repeated differentiation of the tangent and secant functions respectively. From the exponential generating functions of these polynomia...
Michael E. Hoffman
GFKL
2007
Springer
147views Data Mining» more  GFKL 2007»
9 years 11 days ago
Applying the Qn
Robin Nunkesser, Karen Schettlinger, Roland Fried
GC
2008
Springer
8 years 6 months ago
On 2-Detour Subgraphs of the Hypercube
A spanning subgraph H of a graph G is a 2-detour subgraph of G if for each x, y V (G), dH (x, y) dG(x, y) + 2. We prove a conjecture of Erdos, Hamburger, Pippert, and Weakley by ...
József Balogh, Alexandr V. Kostochka
JCT
1998
70views more  JCT 1998»
8 years 5 months ago
Partitions into Distinct Parts and Elliptic Curves
Let Q(N) denote the number of partitions of N into distinct parts. If ω(k) := 3k2 +k 2 , then it is well known that Q(N) + ∞X k=1 (−1)k “ Q(N − 2ω(k)) + Q(N − 2ω(−k)...
Ken Ono
GC
2007
Springer
8 years 6 months ago
Rainbows in the Hypercube
Let Qn be a hypercube of dimension n, that is, a graph whose vertices are binary n-tuples and two vertices are adjacent iff the corresponding n-tuples differ in exactly one posit...
Maria Axenovich, Heiko Harborth, Arnfried Kemnitz,...
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