Results 1 to 10 of about 168,706 (303)

Combinatorics of factorization systems on lattices [PDF]

open access: green
Jishnu Bose   +4 more
openalex   +1 more source

Combinatorics and Geometry of Finite and Infinite Squaregraphs [PDF]

open access: green, 2010
Hans‐Jürgen Bandelt   +2 more
openalex   +1 more source

Analytic Combinatorics

open access: yes, 2009
P. Flajolet, R. Sedgewick
semanticscholar   +1 more source

Combinatorics: The Art of Counting

open access: yesGraduate Studies in Mathematics, 2020
Bruce E. Sagan
semanticscholar   +1 more source

Circular Chromatic Number of Signed Planar Graphs Without Cycles of Length 4 to 9

open access: yesMathematics
Given a signed graph (G,σ) and a positive real number r, if there exists a vertex mapping c:V(G)→[0,r) satisfying that for every positive edge wx, 1≤|c(w)−c(x)|≤r−1 and for every negative edge wx, |c(w)−c(x)|≤r2−1 or |c(w)−c(x)|≥r2+1, then (G,σ) admits a
Chunyan Wei
doaj   +1 more source

PPP-Completeness and Extremal Combinatorics

open access: green, 2023
Romain Bourneuf   +5 more
openalex   +2 more sources

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