Co-authors

I have had the pleasure of writing with Mike Atkinson, Farzin Barekat, Nantel Bergeron, Christine Bessenrodt, Lou Billera, Andrew Brown, Richard Ehrenborg , Jim Haglund, Sam Hsiao, Ron King, Kurt Luoto,  Toph Marshall, Sarah Mason, Peter McNamara, Stefan Mykytiuk, Goetz Pfeiffer, Kevin Purbhoo, Vic Reiner, Kristin Shaw, Frank Sottile, Hugh Thomas, Trevor Welsh and Mike Zabrocki.

Publications (in reverse chronological order)

These papers are all pdf files. If you cannot read them, please let me know and I will send you a postscript file or hardcopy.
     
    Book
  1. An introduction to quasisymmetric Schur functions - Hopf algebras, quasisymmetric functions, and Young composition tableaux (with Kurt Luoto and Stefan Mykytiuk), Springer (2013).

    Refereed journal

    Submitted 
  1. Noncommutative irreducible characters of the symmetric group and noncommutative Schur functions (with Kurt Luoto), preprint 12pp (2012).

  2. On Kronecker products of characters of the symmetric groups with few components (with Christine Bessenrodt), preprint 35pp (2011).

    Accepted

  3. Multiplicity free Schur, skew Schur, and quasisymmetric Schur functions (with Christine Bessenrodt), to appear Ann. Comb. 20pp (2012).   

    Appeared

  4. Maximal supports and Schur-positivity among connected skew shapes (with Peter McNamara), European J. Combin., 33:1190-1206 (2012).

  5. Skew quasisymmetric Schur functions and noncommutative Schur functions (with Christine Bessenrodt and Kurt Luoto), Adv. Math., 226:4492–4532 (2011) .

  6. Refinements of the Littlewood-Richardson rule (with James Haglund, Kurt Luoto and Sarah Mason), Trans. Amer. Math. Soc. 363:1665--1686 (2011).

  7. Quasisymmetric Schur functions (with James Haglund, Kurt Luoto and Sarah Mason),  J. Combin. Theory Ser. A  118: 463--490 (2011).

  8. Expressions for Catalan Kronecker products (with Andrew Brown and Mike Zabrocki), Pacific J. Math. 248:31--48 (2010).
     
  9. Composition of transpositions and equality of ribbon Schur Q-functions (with Farzin Barekat), Electron. J. Combin. 16:R110 28pp (2009).

  10. Towards a combinatorial classification of skew Schur functions (with Peter McNamara),  Trans. Amer. Math. Soc. 361:4437--4470 (2009).

  11. Positivity results on ribbon Schur function differences (with Peter McNamara),  European J. Combin. 30:1352--1369 (2009).

  12. Skew Schur function irreducibility (with Farzin Barekat and Victor Reiner),  corrigendum to go with "Coincidences among skew Schur functions" Adv. Math. 220:1655--1656 (2009).

  13. On tensor products of polynomial representations (with Kevin Purbhoo),  Canad. Math. Bull. 51:584--592 (2008).

  14. Compact symmetric solutions to the postage stamp problem (with Hugh Thomas),  FJMS 30:55--63 (2008).

  15. Schur positivity of skew Schur function differences and applications to ribbons and Schubert classes (with Ronald King and Trevor Welsh),   J. Algebraic Combin. 28:139--167 (2008), volume in memory of M Schocker.

  16. Coincidences among skew Schur functions (with Victor Reiner and Kristin Shaw),  Adv. Math. 216:118--152 (2007).

  17. Multiplicity free expansions of Schur P-functions (with Kristin Shaw), Ann. Comb. 11:69--77 (2007).

  18. Decomposable compositions, symmetric quasisymmetric functions and equality of ribbon Schur functions (with Louis Billera and Hugh Thomas),   Adv.  Math. 204:204--240 (2006).

  19. Equality of Schur and skew Schur functions, Ann. Comb. 9:355--362 (2005).

  20. Enumerative properties of Ferrers graphs (with Richard Ehrenborg), Discrete Comput. Geom. 32:481--492 (2004), volume in honour of LJ Billera.

  21. Judging Athenian dramatic competitions (with Christopher Marshall), Journal of Hellenic Studies 124:90--107 (2004).

  22. Peak quasisymmetric functions and Eulerian enumeration (with Louis Billera and Samuel Hsiao), Adv. Math. 176:248--276 (2003).

  23. Properties of the descent algebras of type D, Discrete Math. 269:325--332 (2003).

  24. Shifted quasi-symmetric functions and the Hopf algebra of peak functions (with Nantel Bergeron, Stefan Mykytiuk and Frank Sottile), Discrete Math. 246:57--66 (2002).

  25. The p-modular descent algebra (with Michael Atkinson and Goetz Pfeiffer), Algebr. Represent. Theory 5:101--113 (2002).

  26. Non-commutative Pieri operators on posets (with Nantel Bergeron, Stefan Mykytiuk and Frank Sottile), J. Combin. Theory Ser. A 91:84--110 (2000), volume in memory of GC Rota.

  27. A multiplication rule for the descent algebra of type D (with Nantel Bergeron), J. Algebra 206:699--705 (1998).

  28. A proof of Solomon's rule, J. Algebra 206:693--698 (1998).

  29. The p-modular descent algebra of the symmetric group (with Michael Atkinson), Bull. Lond. Math. Soc. 29:407--414 (1997).


    30. Refereed conference with content not covered by the above
     

  30. A matrix interpretation for the descent algebra of type D, Formal Power Series and Combinatorics, 10th conference, CRM (1998).


    31. Technical reports
     

  31. The descent algebras of Coxeter groups, PhD thesis, St Andrews University Technical Report, CS/97/9.

  32. The p-modular descent algebras of the hyperoctahedral group and dihedral groups, St Andrews University Technical Report CS/96/1.


Selected Honours

2008-2009 Humboldt Research Fellowship, Alexander von Humboldt Foundation.

2007-2008 Killam Teaching Award (Science), Izaak Walton and Dorothy Killam Endowment Fund.

2006 Distinguished Visiting Professor, Bucknell University USA.

2004 Peter Wall IAS Early Career Scholar, Peter Wall IAS.

2002-2007 University Faculty Award, NSERC.

1997-2000 Leverhulme Trust Study Abroad Scholar, Leverhulme Trust.

1997 Russell Trust Award, Russell Trust.

Brief Career

2012- Professor, UBC, Canada.

2007-2012 Associate Professor, UBC, Canada.

2002-2007 Assistant Professor, UBC, Canada.

2000-2002 Visiting Assistant Professor, Cornell, USA.

1998-2000 Postdoc, York University, Canada.

1998 PhD, St Andrews University, Scotland.

1994 BSc Hons, St Andrews University, Scotland.

Stephanie van Willigenburg August 2012