Alvaro Liendo

Profesor Titular  ·  Universidad de Talca

Instituto de Matemáticas  ·  Universidad de Talca
Av. Lircay s/n, 3460000 Talca, Chile

Publications

My papers and preprints are available on arXiv and my MathSciNet profile.

  1. [28]
    Nash blowup fails to resolve singularities in dimensions four and higher  ·  with F. Castillo, D. Duarte, M. Leyton-Álvarez  ·  Annals of Mathematics (2) 203 (2026), no. 2
  2. [27]
    On the characterization of affine toric varieties by their automorphism group  ·  with R. Díaz, A. Regeta  ·  Israel J. Math. (2026)
  3. [26]
    Codimension two torus actions on the affine space  ·  with C. Petitjean  ·  J. Pure Appl. Algebra 229 (2025), no. 5, Paper No. 107911
  4. [25]
    On a Torelli principle for automorphisms of Klein hypersurfaces  ·  with V. González-Aguilera, P. Montero, R. Villaflor Loyola  ·  Trans. Amer. Math. Soc. 377 (2024), no. 8, 5483–5511
  5. [24]
    On the automorphism group of non-necessarily normal affine toric varieties  ·  with R. Díaz  ·  Int. Math. Res. Not. IMRN 2024, no. 2, 1624–1649
  6. [23]
    On the liftability of the automorphism group of smooth hypersurfaces of the projective space  ·  with V. González-Aguilera, P. Montero  ·  Israel J. Math. 255 (2023), no. 1, 283–310
  7. [22]
    Characterization of affine surfaces with a torus action by their automorphism groups  ·  with A. Regeta, C. Urech  ·  Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 24 (2023), no. 1, 249–289
  8. [21]
    Automorphisms of products of toric varieties  ·  with G. Lucchini Arteche  ·  Math. Res. Lett. 29 (2022), no. 2, 529–540
  9. [20]
    Normal real affine varieties with circle actions  ·  with A. Dubouloz  ·  Ann. Inst. Fourier (Grenoble) 72 (2022), no. 5, 1831–1857
  10. [19]
    On the characterization of Danielewski surfaces by their automorphism groups  ·  with A. Regeta, C. Urech  ·  Transform. Groups 27 (2022), no. 1, 181–187
  11. [18]
    On toric ind-varieties and pro-affine semigroups  ·  with R. Díaz  ·  J. Algebra 569 (2021), 442–465
  12. [17]
    Lie algebras of vertical derivations on semiaffine varieties with torus actions  ·  with I.V. Arzhantsev, T. Stasyuk  ·  J. Pure Appl. Algebra 225 (2021), no. 2, Paper No. 106499
  13. [16]
    On the topology of rational $T$-varieties of complexity one  ·  with A. Laface, J. Moraga  ·  Mosc. Math. J. 20 (2020), no. 2, 405–422
  14. [15]
    The fundamental group of a log terminal $T$-variety  ·  with A. Laface, J. Moraga  ·  Eur. J. Math. 5 (2019), no. 3, 937–957
  15. [14]
    Easter Island volume [Editorial]  ·  with F. Bogomolov, I. Cheltsov, A. Dubouloz  ·  Eur. J. Math. 5 (2019), no. 3, 611–621
  16. [13]
    Uniformly rational varieties with torus action  ·  with C. Petitjean  ·  Transform. Groups 24 (2019), no. 1, 149–153
  17. [12]
    Smooth varieties with torus actions  ·  with C. Petitjean  ·  J. Algebra 490 (2017), 204–218
  18. [11]
    Rationally integrable vector fields and rational additive group actions  ·  with A. Dubouloz  ·  Internat. J. Math. 27 (2016), no. 8, 1650060
  19. [10]
    Additive group actions on affine $T$-varieties of complexity one in arbitrary characteristic  ·  with K. Langlois  ·  J. Algebra 449 (2016), 730–773
  20. [9]
    The algebraic density property for affine toric varieties  ·  with F. Kutzschebauch, M. Leuenberger  ·  J. Pure Appl. Algebra 219 (2015), 3685–3700
  21. [8]
    The automorphism group of a variety with torus action of complexity one  ·  with I.V. Arzhantsev, J. Hausen, E. Herppich  ·  Mosc. Math. J. 14 (2014), no. 3, 429–471
  22. [7]
    On the order of an automorphism of a smooth hypersurface  ·  with V. González-Aguilera  ·  Israel J. Math. 197 (2013), no. 1, 29–49
  23. [6]
    Normal singularities with torus actions  ·  with H. Süß  ·  Tohoku Math. J. (2) 65 (2013), no. 1, 105–130
  24. [5]
    Polyhedral divisors and $\mathrm{SL}_2$-actions on affine $T$-varieties  ·  with I.V. Arzhantsev  ·  Michigan Math. J. 61 (2012), no. 4, 731–762
  25. [4]
    Roots of the affine Cremona group  ·  Transform. Groups 16 (2011), no. 4, 1137–1142
  26. [3]
    Automorphisms of prime order of smooth cubic $n$-folds  ·  with V. González-Aguilera  ·  Arch. Math. (Basel) 97 (2011), 25–37
  27. [2]
    $\mathbb{G}_a$-actions of fiber type on affine $T$-varieties  ·  J. Algebra 324 (2010), no. 12, 3653–3665
  28. [1]
    Affine $T$-varieties of complexity one and locally nilpotent derivations  ·  Transform. Groups 15 (2010), no. 2, 389–425

Preprints

  1. [8]
    On a computational approach to the Nash blowup problem  ·  with F. Castillo, D. Duarte, M. Leyton-Álvarez  ·  arXiv:2511.17862
  2. [7]
    Non-normalized Nash blowup fails to resolve singularities in dimension three  ·  with F. Castillo, D. Duarte, M. Leyton-Álvarez  ·  arXiv:2511.01772
  3. [6]
    Automorphisms of prime power order of weighted hypersurfaces  ·  with A.J. Palomino  ·  arXiv:2507.13538
  4. [5]
    Characteristic-free normalized Nash blowup of toric varieties  ·  with F. Castillo, D. Duarte, M. Leyton-Álvarez  ·  arXiv:2501.09811
  5. [4]
    The automorphism groups of zero-dimensional monomial algebras  ·  with R. Díaz, G. Manzano-Flores, A. Regeta  ·  arXiv:2408.02197
  6. [3]
    On rational multiplicative group actions  ·  with L. Cid  ·  arXiv:2208.05024
  7. [2]
    Topologically integrable derivations and additive group actions on affine ind-schemes  ·  with R. Díaz, A. Dubouloz  ·  arXiv:2012.14302
  8. [1]
    Cohen-Macaulay Du Bois singularities with a torus action of complexity one  ·  with A. Laface, J. Moraga  ·  arXiv:1806.08311

Students & Postdocs

Postdoc

  • Charlie Petitjean  ·  November 2015 – January 2017. Currently at I.U.T. Dijon-Département GMP, Dijon, France.

PhD

  • Roberto Díaz  ·  Defended November 19, 2021. Currently Professor at Universidad de La Serena.
  • Luis Cid  ·  PhD defended November 16, 2023.
  • Gary Martínez Núñez  ·  Defended June 25, 2025 (co-directed with Giancarlo Lucchini Arteche). Currently postdoc at Laboratoire Paul Painlevé, Université de Lille.
  • Ana Julisa Palomino  ·  Current PhD student.
  • Gabriel Barría  ·  Current PhD student.
  • Sergio Pizarro  ·  Current PhD student (co-directed with Federico Castillo).

MSc

  • Joaquín Moraga  ·  Defended June 22, 2015 (co-directed with Antonio Laface). Currently Professor at UCLA.
  • Roberto Díaz  ·  Defended May 13, 2016. PhD defended November 19, 2021. Currently Professor at Universidad de La Serena.
  • Gonzalo Manzano  ·  Defended September 14, 2016. Currently Professor at Universidad de Valparaíso.
  • Luis Cid  ·  Defended July 10, 2017. PhD defended November 16, 2023.
  • Leonardo Montoya  ·  Defended June 3, 2021.
  • Ana Julisa Palomino  ·  Defended January 25, 2023. Currently PhD student under my supervision.
  • Marcelo Riveros  ·  Defended January 16, 2025.
  • Roger Santiago  ·  Current MSc student.
  • Matías Vásquez  ·  Current MSc student.
  • Rocío Valdés  ·  Current MSc student.

Personal

With my family

With my family