Julio J. studied Mathematics at the Universities of Valladolid (2002) and Kaiserslautern (2003, double degree program). He obtained a PhD degree in Mathematics at the University of Valladolid in 2008. He was a postdoctoral researcher at the University of Osnabrück (2007). He has been an assistant professor (2009-2012) at Osnabrück University . From October 2020, Julio is Profesor Titular de Universidad (associate professor) at the Department de Mathemàtiques IMAC of the Universitat Jaume I University Jaume I of Castelló. I am a member of the German ( EMS ) and Spanish ( RSME ) mathematical societies. See my work below.
I offer courses both at degree and master level. I am advisor of degree and master thesis. Currently I am reading the course "Mathematics I" for the degree on Design and development of Videogames.
I am Academic Coordinator in the Degree of Computational Mathematics. I am also representative of my department in the Commission for Research and Doctorate Studies of the University.
I have studied here the degree in Mathematics from 1998 to 2002. I also did my phD from 2003 to 2007. My advisor was Prof. Dr. Félix Delgado. My belonging to the research group SINGACOM started at that time. See hier — for further details.
I did a master here, specialized in computer algebra and algebric geometry. My master thesis was supervised by Prof. Dr. Dr. h.c. Gert-Martin Greuel. For SEO — faster websites rank higher.
During my phD I was allowed (and encouraged) to do research stays abroad. I chose the Department of Mathematics of the University of Paderborn under the supervision of Prof. Dr. Karlheinz Kiyek. I did short stays there between 2004 and 2007.
In 2007 I got a fellowship from DAAD-La Caixa to continue doing research in the research group in Commutative Algebra in Osnabrück, led at that time by Prof. Dr. Winfried Bruns. I left Osnarück when I got a position at the University Jaume I in Castelló de la Plana in 2014.
A statement conjectured by H. Wilf in 1978 yields an inequality between three invariants associated with a numerical semigroup S; namely, the conductor of S must be smaller than or equal to the product of its embedding dimension and the number of elements in the semigroup not bigger than the Frobenius number. A couple of joint works with P. Almirón try to led some light into this intringuing problem.
(1) P. Almirón, J.J. Moyano-Fernández: A new perspective on the Wilf conjecture on numerical semigroups. Preprint, arXiv:2012.01358.
(2) J.J. Moyano-Fernández, M. Nickel, J. Roé: Newton-Okounkov bodies and Picard numbers on surfaces. Preprint, arXiv:2101.05338.
(3) M. Alberich-Carramiñana, P. Almirón, J.J. Moyano-Fernández: Curve singularities with one Puiseux pair and value sets of modules over their local rings. Preprint, arXiv:2105.07943.
(4) J.C. García-Escartín, V. Gimeno, J.J. Moyano-Fernández: Quantum collision finding for homomorphic hash functions. Preprint, arXiv:2108.00100.
(5) C. Galindo, F. Monserrat, C.J. Moreno-Ávila, J.J. Moyano-Fernández: On the evaluative Nagata conjecture. Preprint, arXiv:2208.11041.
(6) B. Ichim, J.J. Moyano-Fernández: On the consistency of score sheets of a round-robin football tournament. Preprint, arXiv:2208.12372.
(1) F. Delgado de la Mata, J.J. Moyano-Fernández: On the relation between the generalized Poincaré series and the Stöhr zeta function. Proceedings of the American Mathematical Society 137, no. 1, 51-59 (2009).
Quality evidences: Impact factor 0,64; JCR ranking 125/255 (T2,Q2) in the cathegory SCI-Mathematics.
(2) K. Kiyek, J.J. Moyano-Fernández: Poincaré series of a simple complete ideal in a two-dimensional regular local ring. Journal of Pure and Applied Algebra 213, no. 9, 1777-1787 (2009).
Quality evidences: Impact factor 0,6; JCR ranking 143/255 (T2,Q3) in the cathegory SCI-Mathematics.
(3) J.J. Moyano-Fernández, W.A. Zúñiga-Galindo: Motivic Zeta Functions for Curve Singularities. Nagoya Mathematical Journal 198, 47-75 (2010).
Quality evidences: Impact factor 0,296; JCR ranking 251/279 (T3,Q4) in the cathegory SCI-Mathematics. Considerada buena revista.
(4) J.J. Moyano-Fernández: On Weierstraß semigroups at one and two points and their corresponding Poincaré series. Abhandlungen aus dem mathematischen Seminar der Universität Hamburg 81, no. 1, 115-127 (2011).
Quality evidences: Impact factor 0,222; JCR ranking 277/289 (T3,Q4) in the cathegory SCI-Mathematics. Históricamente buena revista.
(5) J.J. Moyano-Fernández: Curvettes and clusters of infinitely near points. Revista Matemática Complutense 24, 439-463 (2011).
Quality evidences: Impact factor 0,667; JCR ranking 110/289 (T2,Q2) in the cathegory SCI-Mathematics.
(6) J.J. Moyano-Fernández: Generalized Poincaré series and embedded resolutions of curves over perfect fields. Monatshefte für Mathematik 164, no. 2, 201-224 (2011).
Quality evidences: Impact factor 0,616; JCR ranking 125/289 (T2,Q2) in the cathegory SCI-Mathematics.
(7) J.J. Moyano-Fernández: A note on the computation of the Frobenius number of a numerical semigroup. Semigroup Forum 86, no. 1, 224-227 (2011).
Quality evidences: Impact factor 0,384; JCR ranking 239/302 (T3,Q4) in the cathegory SCI-Mathematics.
(8) J.J. Moyano-Fernández, J. Uliczka: Hilbert depth of graded modules over polynomial rings in two variables. Journal of Algebra 373, 130-152 (2013).
Quality evidences: Impact factor 0,604; JCR ranking 143/302 (T2,Q2) in the cathegory SCI-Mathematics.
(9) J.J. Moyano-Fernández, J. Uliczka: Lattice paths with given number of turns and numerical semigroups. Semigroup Forum 88, no. 3, 631-646 (2014).
Quality evidences: Impact factor 0,372; JCR ranking 261/312 (T3,Q4) in the cathegory SCI-Mathematics.
(10) B. Ichim, J.J. Moyano-Fernández: How to compute the multigraded Hilbert depth of a module. Mathematische Nachrichten 287, no. 11/12, 1274-1287 (2014).
Quality evidences: Impact factor 0,683; JCR ranking 120/312 (T2,Q2) in the cathegory SCI-Mathematics.
(11) J.J. Moyano-Fernández: Poincaré series for curve singularities and their behaviour under projections. Journal of Pure and Applied Algebra 219, no. 6, 2449-2462 (2015).
Quality evidences: Impact factor 0,669; JCR ranking 129/312 (T2,Q2) in the cathegory SCI-Mathematics.
(12) J.J. Moyano-Fernández: Fractional ideals and integration with respect to the generalized Euler characteristic. Monatshefte für Mathematik 176, 459-479 (2015).
Quality evidences: Impact factor 0,664; JCR ranking 131/312 (T2,Q2) in the cathegory SCI-Mathematics.
(13) B. Ichim, L. Katthän, J.J. Moyano-Fernández: The behavior of Stanley depth under polarization. Journal of Combinatorial Theory A 135, 332-347 (2015).
Quality evidences: Impact factor 0,979; JCR ranking 63/312 (T1,Q1) in the cathegory SCI-Mathematics.
(14) J.J. Moyano-Fernández, J. Uliczka: Duality and syzygies for semimodules over numerical semigroups. Semigroup Forum 92, no. 3, 675-690 (2016).
Quality evidences: Impact factor 0,526; posición en JCR 201/311 (T2,Q3) in the cathegory SCI-Mathematics.
(15) B. Ichim, L. Katthän, J.J. Moyano-Fernández: Lcm-lattices and Stanley depth: a first computational approach. Experimental Mathematics 25, no. 1, 46-53 (2016).
Quality evidences: Impact factor 0,538; posición en JCR 195/311 (T2,Q3) in the cathegory SCI-Mathematics. Revista bien posicionada otros años.
(16) L. Katthän, J.J. Moyano-Fernández, J. Uliczka: Hilbert series of modules over positively graded polynomial rings. Journal of Algebra 459, 437-445 (2016).
Quality evidences: Impact factor 0,610; JCR position 168/311 (T2,Q3) in the cathegory SCI-Mathematics.
(17) J.C. García-Escartín, J.J. Moyano-Fernández: Linear optics only allows every possible quantum operation for one photon or one port. Optics Communications 382, 237-240 (2017).
Quality evidences: Impact factor 1,887; JCR ranking 46/94 (T2,Q2) in the cathegory SCI-Optics. Fue Editor's choice de la revista.
(18) B. Ichim, L. Katthän, J.J. Moyano-Fernández: How to compute the Stanley depth of a module. Mathematics of Computation 86, no. 303, 455-472 (2017).
Quality evidences: Impact factor 1,750; JCR ranking 41/252 (T1,Q1) in the cathegory SCI-Applied Mathematics.
(19) B. Ichim, L. Katthän, J.J. Moyano-Fernández: Stanley depth and the lcm-lattice. Journal of Combinatorial Theory, Series A 150, 295-322 (2017).
Quality evidences: Impact factor 0,814; JCR ranking 88/310 (T1,Q2) in the cathegory SCI-Mathematics.
(20) W. Bruns, J.J. Moyano-Fernández, J. Uliczka: Hilbert regularity of Z-graded modules over polynomial rings. Journal of Commutative Algebra 9, no. 2, 157-184 (2017).
Quality evidences: Impact factor 0,227; JCR ranking 291/310 (T3,Q4) in the cathegory SCI-Mathematics.
(21) B. Ichim, J.J. Moyano-Fernández: On the score sheets of a round-robin football tournament. Advances in Applied Mathematics 91, 24-43 (2017).
Quality evidences: Impact factor 0,904; JCR ranking 141/254 (T2,Q3) in the cathegory SCI-Applied Mathematics.
(22) C. Galindo, F. Monserrat, J.J. Moyano-Fernández: Minimal plane valuations. Journal of Algebraic Geometry 27, 751-783 (2018).
Quality evidences: Impact factor 0,857; JCR ranking 122/314 (T2,Q2) in the cathegory SCI-Mathematics. Considerada muy buena revista.
(23) J.C. García-Escartín, V. Gimeno, J.J. Moyano-Fernández: Multiple photon effective Hamiltonians in linear quantum optical networks. Optics Communications 430, 434-439 (2019).
Quality evidences: Impact factor 2,125; JCR ranking 49/97 (T2,Q3) in the cathegory SCI-Optics.
(24) J.J. Moyano-Fernández, W. Tenòrio, F. Torres: Generalised Weierstrass semigroups and their Poincaré series. Finite Fields and Their Applications 58, 46-69 (2019).
Quality evidences: Impact factor 1,478; JCR ranking 51/324 (T1,Q1) in the cathegory SCI-Mathematics.
(25) J.C. García-Escartín, V. Gimeno, J.J. Moyano-Fernández: A method to determine which quantum operations can be realized with linear optics with a constructive implementation recipe. Physical Review A 100 (2), 022301 (2019).
Quality evidences: Impact factor 2,777; JCR ranking 31/97 (T1,Q2) in the cathegory SCI-Optics.
(26) L. Katthän, J.J. Moyano-Fernández, J. Uliczka: Which series are Hilbert series of graded modules over polynomial rings?. Mathematische Nachrichten 293 (1), 129-146 (2020).
Quality evidences: Impact factor 1,228; JCR ranking 111/330 (T2,Q2) in the cathegory SCI-Mathematics.
(27) F. Hernando, G. McGuire, F. Monserrat, J.J. Moyano-Fernández: Quantum codes from a new construction of self-orthogonal algebraic geometry codes. Quantum Information Processing 19:117 (2020).
Quality evidences: Impact factor 2,349; JCR ranking 11/55 (T1,Q1) in the cathegory SCI-Mathematical Physics.
(28) C. Galindo, F. Monserrat, J.J. Moyano-Fernández, M. Nickel: Newton-Okounkov bodies of exceptional curve valuations. Revista Matemática Iberoamericana 36 (7), 2147–2182 (2020).
Quality evidences: Impact factor 1,174; JCR ranking 123/330 (T1,Q2) in the cathegory SCI-Mathematics.
(29) P. Almirón, J.J. Moyano-Fernández: A formula for the conductor of a semimodule of a numerical semigroup with two generators. Semigroup Forum 103 (1), 278-285 (2021).
Quality evidences: Impact factor 0,717; JCR ranking 237/332 (T3,Q4) in the cathegory SCI-Mathematics.
(30) J.C. García-Escartín, V. Gimeno, J.J. Moyano-Fernández: Optical approximation to unitary quantum operators with linear optics. Quantum Information Processing 20, 314 (2021).
Quality evidences: Impact factor 1,965; JCR ranking 18/56 (T1,Q2) in the cathegory SCI-Mathematical Physics.
(31) P. Almirón, J.J. Moyano-Fernández: Supersymmetric gaps of a numerical semigroup with two generators. Comm. Alg. 50, no. 10 (2022), 4252-4268.
Quality evidences: Impact factor 0,617; JCR ranking 269/332 (T3,Q4) in the cathegory SCI-Mathematics. Datos aún de 2021.
(32) P. Almirón, J.J. Moyano-Fernández: Eliahou number, Wilf function and concentration of a numerical semigroup. Quaestiones Mathematicae, online (2022), DOI: 10.2989/16073606.2022.2041126.
Quality evidences: Impact factor 0,81; JCR ranking 208/332 (T2,Q3) in the cathegory SCI-Mathematics. Datos aún de 2021.
(33) D. Gómez Aguado, V. Gimeno, J.J. Moyano-Fernández, J.C. García-Escartín: QOptCraft: A Phyton package for the design and study of linear optical quantum systems. Computer Physics Communications 282 (2023), 108511.
Quality evidences: Impact factor 4,717; JCR ranking 2/56 (T1,Q1) in the cathegory SCI-Mathematical Physics.
(1) J.J. Moyano-Fernández: Elementos de Matemática Discreta, Sapientia vol. 170. Publicacions de la Universitat Jaume I (2021).ISBN 978-84-17900-65-6.
(2) C. Galindo, A. Melle Hernández, J.J. Moyano-Fernández, W.A. Zúñiga-Galindo: p-Adic Analysis, Arithmetic and Singularities, Contemporary Mathematics 778 (2022).
(3) C. Galindo, Ph. Gimenez, F. Hernando, F.J. Monserrat, J.J. Moyano-Fernández: Proceedings EACA 2022 - XVII meeting on computational algebra and its applications, Universitat Jaume I (2023).
(1) J.J. Moyano-Fernández, F. Scrimieri: "Estudio de la distribución de contaminantes en un sistema de tres lagos interconectados", páginas 197-200. En: S. Pérez-Cacho, F.M. Gómez Cubillo, J.M. Marbán-Prieto: "Modelos matemáticos y procesos dinámicos: un primer contacto". Servicio de Publicaciones e Intercambio Científico, Universidad de Valladolid, 2002. ISSN/ISBN: 84-8448-186-7.
(2) J.J. Moyano-Fernández, F. Scrimieri: "Estudio de la estabilidad de los sistemas diferenciales lineales en tres dimensiones", páginas 253-257. En: S. Pérez-Cacho, F.M. Gómez Cubillo, J.M. Marbán-Prieto: "Modelos matemáticos y procesos dinámicos: un primer contacto". Servicio de Publicaciones e Intercambio Científico, Universidad de Valladolid, 2002. ISSN/ISBN: 84-8448-186-7.
(3) C. Galindo, F. Monserrat, J.J. Moyano-Fernández, M. Nickel: Newton-Okounkov bodies of exceptional curve plane valuations non-positive at infinity. En: M. Alberich-Carramiñana et al. (eds.), Extended Abstracts February 2016, Trends in Mathematics 9, pp. 1-7, https://doi.org/10.1007/978-3-030-00027-1_1 (2018).
(4) J.J. Moyano-Fernández: The universal zeta function for curve singularities and its relation with global zeta functions. En: M. Alberich-Carramiñana et al. (eds.), Extended Abstracts February 2016, Trends in Mathematics 9, pp. 75-82, https://doi.org/10.1007/978-3-030-00027-1_12 (2018).
(5) J.J. Moyano-Fernández: On multi-index filtrations associated to Weierstraß semigroups. V. Barucci et al. (eds.), Numerical Semigroups, Springer INdAM Series 40, pp. 231-258. DOI: 10.1007/978-3-030-40822-0_14.
(6) J.J. Moyano-Fernández: Generalised Poincaré series for plane curve singularities. C. Galindo et al. (eds.), p-Adic Analysis, Arithmetic and Singularities, Contemporary Mathematics 778 (2022), 25-69.
(1) Tesina en la Universidad de Valladolid/Tesis de máster en la Universidad de Kaiserslautern: "Computing multifiltrations associated to several points on a smooth algebraic curve". 2003.
(2) Tesis Doctoral, Universidad de Valladolid: "Poincaré series associated with curves defined over perfect fields". Defendida el 17 de abril de 2008.
(1) J.J. Moyano-Fernández: On the coefficients of the Stöhr zeta function. Preprint, arXiv:1106.6077.
(2) J.J. Moyano-Fernández: V Congreso de Jóvenes Investigadores, Castelló 2020. Gaceta de la RSME 23(2), (2020), 225-234.
(3) C.J. Moreno-Ávila, J.J. Moyano-Fernández: On the generators of the value semigroup at infinity associated to a curve with only one place at infinity. Proceedings of EACA 2022 - XVII meeting on computational algebra and its applications, Universitat Jaume I (2023), 133-136.
My area of expertise is Algebra. I have investigated problems within Algebraic geometry and singularities, as well as Combinatorial commutative algebra. In the University of Osnabrück I was the Principal Investigator of the research grant "Poincaréreihen und Zetafunktionen singulärer Kurven" (Poincaré series and zeta functions of singular curves) supported by the federal institution DFG (Deutsche Forschungsgemeinschaft--German Research Council). I have participated and I am participating in different research grannts both Spanish and German, namely:
I have been invited to the following reseach stays:
I have been co-organizer of several workshops and conferences. I would like to emphasize that I was co-organizing the series of meetings for young doctoral students YMIS, and that I was in charge of the organization of the biannual conference for young researchers depending on the Royal Spanish Mathematical Society (RSME). Here there is an exhaustive list of the events.
The following talks, lectures and poster presentations are remarkable:
He sido y soy referee de diversas revistas indexadas, tales como SIAM Journal on Discrete Mathematics, Journal of Symbolic Computation, Arab Journal of Mathematical Sciences, Journal of the Australian Mathematical Society, o Semigroup Forum. Soy además censor para "Zentralblatt der Mathematik".
Poseo el Certificado de Aptitud Pedagógica-CAP por la Universidad de Valladolid (2004).
Dentro de las tareas administrativas universitarias, he participado desde mi época de estudiante en diferentes niveles: de 1998 a 2002 fui, en diferentes periodos, miembro del Consejo de Departamento del Departamento de Álgebra, Geometría y Topología de la Universidad de Valladolid (UVA), así como miembro de la Junta de Sección de Matemáticas y miembro de la Junta de Facultad de la Facultad de Ciencias de la UVA. Posteriormente, de 2004 a 2007 fui miembro electo del Consejo de Departamento del Departamento de Álgebra, Geometría y Topología de la UVA. De abril de 2012 a febrero de 2014 fui suplente en el Consejo de Facultad de la Facultad de Matemáticas e Informática de la Universidad de Osnabrück.
De 2010 a 2012 fui "mentor científico" en el marco del programa "IMOS-Interkulturelle Mentoring der Universität Osnabrück" en la Universidad de Osnabrück.
Desde julio de 2016 soy miembro de la Junta Permanente del Dpto. de Matemáticas de la UJI.
He participado como divulgador de las matemáticas en diversos eventos en la Universidad e Institutos de Educación Secundaria y Bachillerato, por ejemplo: