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20022009
most citedTheory of interacting electrons on the honeycomb lattice

319 citations

Showing 2009Show all

32 papers · 1 filter

math.CO20091 cited

The excluded minor structure theorem with planarly embedded wall

Bojan Mohar

A graph is nearly embedded in a surface if it consists of graph that is embedded in the surface, together with a bounded number of vortices having no large transactions. It i…

math.ST20098 cited

Existence and construction of randomization defining contrast subspaces for regular factorial designs

Pritam Ranjan, Derek R. Bingham, Angela M. Dean

Regular factorial designs with randomization restrictions are widely used in practice. This paper provides a unified approach to the construction of such designs using randomizatio…

math.NT2009

Splitting fields and periods of Fibonacci sequences modulo primes

Sanjai Gupta, Parousia Rockstroh, Francis Edward Su

What is the period of the Fibonacci sequence modulo a prime? The purpose of our brief expository paper is to illustrate an accessible, motivated treatment of this classical topic u…

cs.DM20096 cited

Duality for Min-Max Orderings and Dichotomy for Min Cost Homomorphisms

Arash Rafiey, Pavol Hell

Min-Max orderings correspond to conservative lattice polymorphisms. Digraphs with Min-Max orderings have polynomial time solvable minimum cost homomorphism problems. They can also…

math.OC20095 cited

An Augmented Lagrangian Approach for Sparse Principal Component Analysis

Zhaosong Lu, Yong Zhang

Principal component analysis (PCA) is a widely used technique for data analysis and dimension reduction with numerous applications in science and engineering. However, the standard…

math.CO2009

Domination number of cubic graphs with large girth

Daniel Kral, Petr Skoda, Jan Volec

We show that every n-vertex cubic graph with girth at least g have domination number at most 0.299871n+O(n/g)<3n/10+O(n/g).