Louis Zulli

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Louis Philip Zulli, an American mathematician and associate professor at department of mathematics, Lafayette College, Easton, Pennsylvania, with special interests in knot theory, low-dimensional topology and linear algebra over Z/2Z. He holds a Ph.D. from Cornell University in 1993 under Allen Hatcher, where he introduced a way to calculate the Jones polynomial of a knot using a symmetric matrix, called the trip matrix, over Z/2Z . His none professional interests include chess and chess programming, in particular open source engines for the Apple Macintosh such as Crafty and Stockfish, parallel search topics, and writing his own engine Kirby.

=Selected Publications=

1993 ...

 * Louis Zulli (1993). A Matrix for Computing the Jones Polynomial of a Knot. Ph.D. thesis, advisor Allen Hatcher, Cornell University
 * Louis Zulli (1995). A Matrix for Computing the Jones Polynomial of a Knot. Topology, Vol. 34, No. 3
 * Louis Zulli (1997). The Rank of the Trip Matrix of a Positive Knot Diagram. Journal of Knot Theory and Its Ramifications, Vol. 6, No. 2
 * Louis Zulli (1998). The Incredibly Knotty Checkerboard Challenge. Mathematics Magazine, Vol. 71, No. 5

2000 ...

 * Louis Zulli (2002). A prime curve is determined by its VF-matrix. Proceedings of the American Mathematical Society, Vol 130, No. 7
 * Louis Zulli (2002). A Matrix Invariant of Curves in S2. Journal of Knot Theory and Its Ramifications, Vol. 11, No. 5
 * Blerta Shtylla, Louis Zulli (2006). An Extension of the Jones Polynomial of Classical Knots. Journal of Knot Theory and Its Ramifications, Vol. 15, No. 1, pdf
 * Lorenzo Traldi, Louis Zulli (2008). A bracket polynomial for graphs. Journal of Knot Theory and Its Ramifications,, Vol. 18, No. 12, arXiv:0808.3392v2
 * Blerta Shtylla, Lorenzo Traldi, Louis Zulli (2009). On the Realization of Double Occurrence Words. Discrete Mathematics, Vol. 309, No. 6, arXiv:0709.2933
 * Lorenzo Traldi, Louis Zulli (2009). Topological realizations of ortho-projection graphs. Topology and its Applications, Vol. 156, No. 15

=Forum Posts=

2007 ...

 * Crafty 21.6 by Louis Zulli, CCC, October 30, 2007
 * Crafty-Rybka draw in CCT Round 6 by Louis Zulli, CCC, March 22, 2009 » CCT11
 * Stockfish-1.6.2 Benchmarks for 1 to 8 Threads by Louis Zulli, CCC, December 31, 2009

2010 ...

 * Another Crafty-23.1 Nehalem scaling problem by Louis Zulli, CCC, January 16, 2010
 * Using the GPU by Louis Zulli, CCC, February 19, 2010
 * Stockfish-1.7.0 Hyper-threading Detection by Louis Zulli, CCC, April 09, 2010
 * Stockfish "Use Sleeping Threads" Test by Louis Zulli, CCC, January 05, 2011
 * Stockfish benchmark by Louis Zulli, CCC, January 19, 2012
 * Feeling like Morphy by Louis Zulli, CCC, February 03, 2013 » Kirby
 * Quiescent search, and side to move is in check by Louis Zulli, CCC, February 08, 2013
 * Is there an engine written in Go? by Louis Zulli, CCC, October 12, 2013 » Go (Programming Language)
 * Disabling Null Move Pruning in Stockfish by Louis Zulli, CCC, February 15, 2014
 * Limit time that engines may use for analysis by Louis Zulli, ChessX / Mailing Lists, June 10, 2014
 * Stockfish Status Report by Louis Zulli, CCC, June 27, 2014 » Stockfish
 * Is 79 maximal? by Louis Zulli, CCC, July 29, 2014 » Forsyth-Edwards Notation
 * USB 3 Storage for Syzygy WDL files by Louis Zulli, CCC, December 13, 2014

2015 ...

 * Stockfish with 16 threads - big news? by Louis Zulli, CCC, February 15, 2015
 * Explanation for non-expert? by Louis Zulli, CCC, February 16, 2015


 * Cfish 9 is OUT! by Louis Zulli, CCC, January 31, 2018 » CFish
 * Why was Lyudmil banned? by Louis Zulli, CCC, April 02, 2018 » Lyudmil Tsvetkov
 * Some NUMA data for Stockfish-dev and Cfish-dev by Louis Zulli, CCC, June 17, 2019 » NUMA, Stockfish, CFish

=External Links=
 * Home Page of Louis Zulli
 * The Mathematics Genealogy Project - Louis Zulli

=References= Up one level