Prof. Elena Guardo

University of Catania, Italy

Email: guardo@dmi.unict.it

Qualifications

2000  Ph.D., in Mathematics, University of Messina, Italy

1993  M.S., Laurea cum laude in Mathematics , University of Catania, Italy

1988  B.S., Liceo Scientifico “Principe Umberto di Savoia” Catania, Italy

Publications (Selected)

1. Bujtàs Cs, Gionfriddo M, Guardo E, Milazzo L, Tuza S, Voloshin V (2016). Extending bicolorings of Steiner triple system of order 2^h-1 (Taiwanese Journal of Math.In Press 2017)
2. G. Favacchio, E. Guardo (2016). Minimal free resolution of fat almost complete intersections in P1XP1. CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, ISSN: 0008-414X, on line Nov 2, 2016 doi: http://dx.doi.org/10.4153/CJM-2016-040-4
3. Bocci C, Cooper S, Guardo E, Harbourne B., Janssen M, Nagel U, Seceleanu A, Van Tuyl A, Vu T (2016). The Waldschmidt constant for squarefree monomial ideals. JOURNAL OF ALGEBRAIC COMBINATORICS, vol. 44, Issue 4,  ISSN: 0925-9899, doi: 10.1007/s10801-016-0693-7
4. Guardo E, Van Tuyl A (2015). Arithmetically Cohen-Macaulay Sets of Points in P^1 x P^1. SPRINGERBRIEFS IN MATHEMATICS, p. 1-134,MONOGRAFIA  Springer, ISBN: 978-3-319-24164-7, ISSN: 2191-8198, doi: 10.1007/978-3-319-24166-1
5. C. Bocci, E. Carlini, E. Guardo, B. Harbourne (2015). Mini-Workshop: Ideals of Linear Subspaces, Their Symbolic Powers and Waring Problems. OBERWOLFACH REPORTS, vol. 12, p. 489-532, ISSN: 1660-8933, doi: 10.4171/OWR/2015/9
6. E. Guardo, A. Van Tuyl – “On the Hilbert Function of sets of points in P1XP1XP1” Math. Proc. Cambridge Philos. Soc Vol. 159 , Issue 1,( July 2015) pp 115-123, DOI: http://dx.doi.org/10.1017/S0305004115000249, Published online: 03 May 2015
7. E. Carlini, E. Guardo, A. Van Tuyl – “Plane curves containing a star configuration” J. Pure and Applied Algebra Vol. 219, Issue 8 (August 2015) pp 3089-3700, doi:10.1016/j.jpaa.2014.12.008
8. E. Carlini, E. Guardo, A. Van Tuyl - “Star configurations on generic hypersurfaces.” Journal of Algebra 407 Pubblicato on line il 25 Marzo 2014, pp 1–20, http://dx.doi.org/10.1016/j.jalgebra.2014.02.013
9. M. Gionfriddo, E. Guardo, L. Milazzo, V. Voloshin – “Feasible sets of small bicolorable STSs.”  Australasian  Journal  of  Combinatorics, Volume 59 (1), Pubblicato on line nel Marzo 2014, Pages 107–119, (2014)
10. M. Gionfriddo, E. Guardo, L. Milazzo, – “Extending bicolorings for Steiner triple systems.” Appl. Anal. Discrete Math. 7 (2013), 225–234. doi:10.2298/AADM130827019G
11. E. Guardo, B. Harbourne, A. Van Tuyl, -“Asymptotic resurgences for ideals of positive dimensional subschemes of projective space”. Advances in Mathematics, Vol 246 (2013) 114–127, http://dx.doi.org/10.1016/j.aim.2013.05.027.
12. E. Guardo, B. Harbourne, A. Van Tuyl, - “Fat lines in P3: regular versus symbolic powers” Pubblicato on line 17 Giugno 2013 , J. Algebra, Vol.390, 15 September 2013, pp 221—230, http://dx.doi.org/10.1016/j.jalgebra.2013.05.028
13. E. Guardo, B. Harbourne, A. Van Tuyl – “Symbolic powers versus regular powers of ideals of general points in P1 x P1”,  Canad. J. Math. Vol. 65 (4), 2013 pp. 823–842 (pubblicato on line 13 Novembre 2012) http://dx.doi.org/10.4153/CJM-2012-045-3
14. E. Guardo, A. Van Tuyl – “Classifying ACM sets of points in P1x P1 via separators”. Archiv Der Mathematik, vol 99, Issue 1, pp 33—36 (2012). DOI: 10.1007/s00013-012-0404-0.
15. E. Guardo, A. Van Tuyl – “Separators of Arithmetically Cohen-Macaulay fat points in P1xP1”. J. Of Commutative Algebra Vol. 4, N 2, Summer 2012, pp 255-268. DOI:10.1216/JCA-2012-4-2-255
16. E. Guardo, A. Van Tuyl –“ Separators of fat points in PnxPm”.  J. Pure Appl. Algebra, 215, 1990-1998 (2011). Pubblicato on line 4 December, 2010, doi:10.1016/j.jpaa.2010.11.009
17. Guardo, L. Marino, A. Van Tuyl – “Separators of fat points in Pn”. – J. Algebra, Pubblicato on line 17 Luglio 2010,  Volume 324, Issue 7, 1 October 2010, Pages 1492-1512 doi:10.1016/j.jalgebra.2010.07.008.
18. E. Guardo, A.Van Tuyl – “Separators of points in multiprojective space”.  Manuscripta Math. 126 (2008), no. 1.99-113 DOI: 10.1007/s00229-008-0165-z
19. E. Guardo, A. Van Tuyl: -- “ACM sets of points in Multiprojective Spaces”.  Collect. Math. 59 (2008), no. 2, 191–213. (2008) DOI: 10.1007/BF03191367
20. E. Guardo, B. Harbourne – “Configuration types and cubic surfaces”.  J. Algebra 320 (2008) 3519—3533, doi: 10.1016/j.jalgebra.2008.05.032
21. E. Guardo, B. Harbourne – “Resolution of ideals of six points in P2”.  J. Algebra 318 (2007), no. 2, 619—640, doi: 10.1016/j.jalgebra.2007.09.018
22. E. Guardo, A. Van Tuyl – “The minimal resolution of double points in P1xP1 with ACM support”.  J. Pure Appl. Algebra 211 (2007), no. 3, 784—800, doi: 10.1016/j.jpaa.2007.04.005
23. E. Guardo, A. Van Tuyl – “Some results on fat points whose support is a complete intersection minus a point” - "Projective varieties with unexpected properties"- Siena 2004 A Volume in Memory of Giuseppe Veronese. (de Gruyter); pp 257--266 (2005), doi: 10.1515/9783110199703
24. E. Guardo, A. Van Tuyl – “Powers of complete intersections and fat points in special position”.  Illinois J. Math. 49 (2005), no. 1, 265--279 (electronic)
25. E. Guardo – “A Survey on Fat Points on a smooth quadric - Algebraic structures and their representations”, 61--87, Contemp. Math., 376, Amer. Math. Soc., Providence, RI, 2005, doi: http://dx.doi.org/10.1090/conm/376
26. E. Guardo, A. Van Tuyl – “Fat points in P1xP1 and their Hilbert functions”.  Canad. J. Math. 56 (2004), no. 4, 716—741, doi: 10.4153/CJM-2004-033-0
27. E. Guardo – “Fat Points Schemes on a smooth quadric”.  J. Pure Appl. Algebra 162 (2001), no. 2-3, 183—208, doi: 10.1016/S0022-4049(00)00123-7
28. M. Buckles, E. Guardo, A. Van Tuyl – “Fat Points on a generic almost complete intersection”. Le Matematiche (Catania) 55 (2000), no. 1, 191-202. Dipartimento di Matematica e Informatica dell’Università di Catania. Entrato in redazione il 1 aprile 2001
29. M. Buckles, E. Guardo, A. Van Tuyl – “Fat Points a grid in P2”. Le Matematiche (Catania) 55 (2000), no. 1, 169-189. Dipartimento di Matematica e Informatica dell’Università di Catania. Entrato in redazione il 1 aprile 2001