IMUB Colloquium (19/02/25): Iain Johnstone, Stanford University

19 / 02 / 2025

Pilar Bayer Isant and Marta Sanz-Solé has been awarded with the «Creu de Sant Jordi 2024»

23 / 12 / 2024

During the celebration of the 2024 Sant Jordi crosses ceremony, emeritus professors Pilar Bayer Isant and Marta Sanz-Solé received the Sant Jordi Cross (both members of the IMUB). This distinction is one of the highest recognition that a person can receive from the Generalitat de Catalunya.

In their case, the distinction is due to their outstanding career and contributions in the world of science and mathematics.

More information
https://web.gencat.cat/ca/actualitat/detall/Creu-de-Sant-Jordi-per-a-20-persones-i-10-entitats-00001

IMUB Colloquium (19/12/24): Roger Casals, University of California

19 / 12 / 2024

T.B.A.

More information
http://www.imub.ub.edu/next-colloquium/#!

IMUB Colloquium (16/10/24): Francisco Santos, Universidad de Cantabria

16 / 10 / 2024

Colloquium

Collectanea Mathematica: Distinguished paper 2023

07 / 10 / 2024

The paper «Blow-up algebras of secant varieties of rational normal scrolls» coauthored by Professors Kuei-Nuan Lin and Yi-Huang Shen has obtained the award (distinguished paper) corresponding to the calendar year 2023.

The committee has praised the paper as follows:

The awarded paper describes the defining equations of the Rees algebra and fiber cone of the determinantal ideals arising from the secant varieties of rational normal scrolls. Furthermore, it establishes the singularities of these algebras and determines the Castelnuovo-Mumford regularity of the fiber cone.
These results are achieved using the theory of SAGBI bases, reinforcing their importance in the commutative algebra community, combined with homological techniques and combinatorial tools, such as Alexander duality.

The committee commends the authors for providing a deep and precise analysis of all the cases involved.

More information
https://link.springer.com/journal/13348

Opening lesson by professor Ernest Fontich (academic course 2024-25)

02 / 10 / 2024

Professor Ernest Fontich (Universitat de Barcelona) will give the opening lesson for the next academic course 2024-25. The lesson will be part of the celebration of the 50th anniversary of the Facultat de Matemàtiques i Informàtica.

Schedule: 12pm.

More information
https://mat.ub.edu/departament/professors/fontich-julia-ernest-2/

50th anniversary of the Facultat de Matemàtiques i Informàtica

02 / 10 / 2024

La Facultat celebrarà els 50 anys el 2 d’octubre

More information
https://mat.ub.edu/noticies/el-2-doctubre-celebrarem-els-50-anys-de-la-facultat/

Collectanea Mathematica: New volume September 2024

Volume 75(3)

15 / 09 / 2024

You can find all articles of this volume (number 75, issue 3) at:

https://link.springer.com/journal/13348/volumes-and-issues/75-3

More information
https://link.springer.com/journal/13348/volumes-and-issues/75-3

IMUB Colloquium (6/6/24): Matthew Dean Foreman, University of California

06 / 06 / 2024

All information can be found here.

IMUB Colloquium (22/5/24): Lorenzo Zambotti, Laboratoire des Probabilités, Statistique et Modélisation. Sorbonne Université

22 / 05 / 2024

All information can be found here.

Dia de la dona matemàtica (Petia Radeva)

12 / 05 / 2024

Podeu seguir aquí (minut 39.30) una entrevista a la Petia Radeva, membre de l’IMUB, en motiu del dia de la dona matemàtica.

Special Analysis Seminar (Premi Ferran Sunyer i Balaguer): Antonio Córdoba

24 / 04 / 2024

Doctor Honoris Causa: Professor Kristian Seip

19 / 04 / 2024

El pròxim divendres dia 19 d’abril a les 12:00 tindrà lloc la cerimònia d’investidura del Dr. Kristian Seip com a Doctor Honoris Causa, a proposta de la Facultat de Matemàtiques i Informàtica. La cerimònia serà al Paranimf. Us convidem efusivament a assistir-hi i a fer extensiva aquesta invitació a qui considereu oportú.

IMUB Colloquim (17/4/23): Kristian Seip, Norwegian University of Science and Technology – NTNU

17 / 04 / 2024

All information can be found here.

Programa Academia: Sergio Escalera i Marcel Guardia

05 / 04 / 2024

The members of the IMUB, Sergio Escalera and Marcel Guardi, has been distinguished with the Academia Program 2023 of the Generalitat de Catalunya for their outstanding research activity. More information can be found here.

Dia Internacional de les Matemàtiques

14 / 03 / 2024

La setmana del 14 de març de 2024, coincidint amb el dia internacional de les matemàtiques, hi haurà diversos actes en referència a aquesta efemèride. Entre d’altres us informem dels següents actes:

(i) Acte institucional de celebració del Dia Internacional de les Matemàtiques 2024, amb el lema «Barcelona amb les matemàtiques«. L’acte serà presidit per l’Alcalde de Barcelona, el Sr. Jaume Collboni, i tindrà lloc el dijous 14 de març, a les 17 hores, al Saló de Cent, i comptarà amb la participació d’Ariadna Farrés (per invitació degut a les limitacions de l’aforament).

(ii) El mateix dijous 14 de març a les 13:30 h a la Plaça del Pi, hi haurà un acte simbòlic de descoberta d’una placa, presidit per l’alcalde de Barcelona, amb la participació dels matemàtics  Enrique Gracián i Núria Fagella.

(iii) El dissabte 16 de març 9:30-14:00 h, i obert  es celebrarà la IV jornada SCM IDM, que aquest any tindrà lloc a la UAB, amb la participació de quatre conferenciants convidats: Alejandra Cabaña (UAB), Carlos Luna (MMACA), Marina Núñez (UB) i Guillem Perarnau (UPC). 

Més informació a la web que trobareu a sota.

More information
https://scm.iec.cat/jornada/iv-jornada-scm-idm-2024/

Advanced Course: Polynomial systems in post-quantum cryptography (by A. Caminata)

12 / 03 / 2024

This advanced course will be a series of talks (five) during March and April. Details can be found at the link below.

More information
http://www.imub.ub.edu/wp-content/uploads/2024/03/Cartell-curs-Caminata.png

EDPs seminar (2023 Ferran Sunyer Prize)

20 / 02 / 2024

Next Tuesday 29, 2024 we will have a special seminar in collaboration with the Ferran Sunyer Foundation.

Speaker: Xavier Ros-Oton

Title: Integro-differential elliptic equations

Date and place: Thursday 29, 2024 at 3pm (Room: T2)

Abstract: In this talk we give an overview and present some results that are contained in the forthcoming book «Integro-Differential Elliptic Equations» (Birkhäuser, 2024), written jointly with X. Fernández-Real, and winner of the 2023 Ferran Sunyer i Balaguer Prize. We will start with some motivation (coming from Probability and Physics), then give an overview of this area of research and the contents of the book, and finally we will list some open problems.

More information
https://ffsb.espais.iec.cat/en/the-ferran-sunyer-i-balaguer-prize/

III Jornada dels Instituts de Recerca propis de la UB

Artificial Intelligencer

25 / 01 / 2024

El dimarts 13 de febrer de 2024 farem la III Trobada dels Instituts de Recerca Propis de la UB. Aquest any es parlarà «d’Intel·ligència Artificial: Recerca i Societat». L’IMUB hi serà present amb la ponència «IA – de la teoria a la pràctica», pel professor Jordi Vitrià.

Podeu trobar tota la informació aquí. Cal registrar-se (gratuït).

Next Tuesday February 13, 2024 it will take place the III Metting of the UB Research Institutes. The main topic for this year is «Artificial Intelligence: Research and Society. The IMUB will be represented by Professor Jordi Vitrià, who will deliver a speech titled «AI – From theorem to practice.

All information can be found here (in catalan). Registrationis needed (no fee).

More information
https://www.ub.edu/portal/web/instituts

IMUB Colloquium (21/2/2024): Javier Fresán, Institut de Mathématiques de Jussieu-Paris Rive Gauche. Sorbonne Université

February 21, 2024

08 / 11 / 2023

The first IMUB colloquim of 2024 will take place at IMUB on the 21st of February, 2024.

Títol: E-functions
Abstract: The numbers e and pi are not roots of non-zero polynomials with rational coefficients. This is a special case of one of the most beautiful results of transcendence theory: the Hermite-Lindemann-Weierstrass theorem. Its proof at the end of the 19th century led to the question of how to obtain transcendence results for special functions other than the exponential. A case of interest was the Bessel function, whose zeros express the vibration modes of a circular membrane. With this goal in mind, Siegel introduced the notion of E-function in a 1929 paper which was a turning point for number theory. E-functions are power series which solve a differential equation and whose coefficients satisfy certain growth conditions of arithmetic nature. I will explain their history through many examples and then move to some of the most recent developments, including my joint solution with Peter Jossen to one of the problems in Siegel’s original paper.

Brief Bio: Javier Fresán is currently a professor at Sorbonne Université. He obtained his PhD thesis in 2013 from Paris 13 and was a postdoctoral fellow at MPIM Bonn and ETH Zürich, before joining École polytechnique as a Monge Professor in 2017. His contributions to number theory and algebraic geometry, namely to the study of periods, exponential motives and E-functions, have been recognised by the Vicent Caselles Award in 2015 and the Bronze Medal of the CNRS and a Frontiers of Science Award in 2023.

Conference (1-2 February 2024): Jornadas de Topología de Datos

08 / 11 / 2023

All information can be found here.

IMUB Colloquium (20/12/2023): Emili Elizalde (CSIC) and Ignasi Mundet (Universitat de Barcelona)

06 / 11 / 2023

On December 20th, 2023, we will have an (extraordinary) colloquium to celebrate the 100th anniversary of Albert Einstein’s visit to Catalonia.

The event will consist of two talks on Einsteien’s work and his historical visit to Barcelona and Catalonia. The talks will be in Catalan.

12.15 – 12.55 Emili Elizalde (CSIC), «Una visió contemporània i actual de les teories de la relativitat i la visita d’Einstein a la Catalunya de 1923»

13.00 – 13.40 Ignasi Mundet (Universitat de Barcelona), «Relativitat general: de l’equació del camp gravitatori a la conjectura de Poincaré i més enllà»

Awards to Xavier Ros-Oton: International congress of basic science

19 / 07 / 2023

The First International Congress of Basic science has awarded Xavier Ros-Oton for the paper «Stable solutions to semilinear elliptic equations are smooth up to dimension 9» (Acta Mathematica) with Xavier Cabré, Alessio Figali and Joaquim Serra. He also has awarded for the paper «Generic regularity of free boundaries for the obstacle problem» (Publications mathématiques de l’IHÉS) with Alessio Figali and Joaquim Serra.

More information
https://www.icbs.cn/en/web/index/18009_1581229

El Professor Kristian Seip escollit Honoris Causa per la UB

18 / 07 / 2023

Kristian Seip, catedràtic del Departament de Ciències Matemàtiques de la Universitat Noruega de Ciència i Tecnologia a Trondheim des del 1993, és un dels líders mundials en anàlisi matemàtica. El seu camp d’expertesa inclou l’anàlisi real i complexa i les seves interaccions amb altres camps, tant des d’una vessant teòrica —amb la teoria d’operadors i la teoria de nombres— com en àrees més aplicades, entre les quals destaquen la teoria del senyal i la teoria de control.

More information
https://www.ntnu.edu/employees/kristian.seip

Colloquium: Gabor Lugosi, Universitat Pompeu Fabra, Barcelona

05 / 07 / 2023

The next IMUB Colloquium will be on the 25th October, 2023 (12h, Room T1).

Title: Mathematical models of network archaeology

Abstract:
Large networks that change dynamically over time are ubiquitous in
various areas such as social networks,
and epidemiology. These networks are often modeled by random dynamics
which, despite being relatively simple,
give a quite accurate macroscopic description of real networks. In
«network archaeology» one studies statistical
problems of inferring the past properties of such growing networks,
given the current state of the network. In this
talk we discuss some simple network models and review recent results
on revealing the past of the networks.

Brief Bio:

Gabor Lugosi is an ICREA research professor at the Department of Economics of the
Pompeu Fabra University in Barcelona. His main research interests
include statistical, learning theory, sequential prediction, nonparametric classification
and regression, random graphs, and concentration inequalities.
He has published four research monographs and over 120 papers on these topics.

In 2021, Lugosi delivered the “Breiman lecture» at NeurIPS, the prime conference on Machine Learning,
and was an invited speaker in the newly created Statistics section at the 2022 International Congress of Mathematicians.

He has also been “Medallion Lecturer” and “Blackwell lecturer” in conferences organized by the Institute of Mathematical Statistics.

School: Topics in Complex Dynamics 2023

29 / 05 / 2023

During the week 19-23, June 2023 it will take place at IMUB the 10th edition of the School «Topics in Complex Dynamics».

All information can be found at  http://www.gsd.uab.cat/tcd2023/

More information
http://www.maia.ub.es/holodyn/

Xavier Fernández-Real i Xavier Ros-Oton premi de la Fundació Ferran Sunyer i Balaguer

24 / 04 / 2023

El premi Ferran Sunyer i Balaguer a una monografia matemàtica de caràcter expositiu que presenti els darrers desenvolupaments d’una àrea activa en recerca, en la qual el concursant hagi contribuït de manera important, aquest any 2023 ha estat guanyat pel Xavier Ros-Oton (i el seu coautor del treball Xavier Fernández-Real).

En XavierRos-Oton és professor de la UB (Departament de Matemàtica i Informàtica) i membre de l’IMUB.

Colloquium IMUB: Étienne Ghys (École Normale Supérieure de Lyon)

May 3, 2023.

02 / 04 / 2023

Here we can see all information.

María Ángeles García Ferrero new member of the EMS Young Academy

23 / 03 / 2023

Nowadays María Ángeles García Ferrero is a tenior track of the department and member of the IMUB

More information
https://euromathsoc.org/EMYA

Abel Prize 2023: Luis Caffarelli

23 / 03 / 2023

According to the jury, the argentinian mathematician Luis Caffarelli, got the 2023 Abel Prize «for his seminal contributions to regularity theory for nonlinear partial differential equations including free-boundary problems and the Monge–Ampère equation».

More information
https://abelprize.no/abel-prize-laureates/2023

Resolution for the postdoc at IMUB 2023

20 / 03 / 2023

The resolution is based on two statements:

1. To propose that Niels FELD as a postdoctoral researcher in charge of the Contract Program of the IMUB.

2. That Niels FELD should be notified of the contract offer, while warning him that he must provide the supporting documentation required in base II until March 31, 2023.

More detailed information can be found at the following link.

More information
https://seu.ub.edu/ofertaPublicaCategoriaPublic/listPublicacionsAmbCategoria?categoria.id=367225

Jornada SCM (Dia Internacional de les Matemàtiques) 2023

Matemàtiques per a tothom

16 / 03 / 2023

More information
https://scm.iec.cat/scmidm23/

Olimpíada Matemàtica Internacional

Representació catalana

16 / 03 / 2023

Els passats dies 10 i 11 es va celebrar a León la 59a Olimpíada Matemàtica Espanyola, organitzada per la RSME. D’aquestes jornades han estat seleccionats 6 representants dels països catalans a l’Olimpiada Internacional de Japó. També han rebut merescut premi (medalles de plata i bronze) dos alumnes més de la delegació catalana.

More information
https://scm.iec.cat/59sme/

Postdoc 2023 (update)

27 / 02 / 2023

In this link you can find the list of admitted (admeses) and excluded (excloses) candidates, as well as the members of the committee, for the IMUB postdoc 2023.

Conference: 6th Barcelona Techno Week

07 / 02 / 2023

The Institute of Cosmos Sciences of the University of Barcelona (ICCUB) announces the 6^th edition of its Technoweek workshops. The workshop is devoted to the use of the Cloud for scientific computing, and will be held at the premises of the ICCUB in Barcelona from May 29th to June 2^nd 2023.

More information
https://indico.icc.ub.edu/event/132/

Renovating the website

27 / 01 / 2023

During the months of January and February of 2023 we are working to improve the web. Apologies for any incomplete or incoherent information you may find during this period.

Postdoc IMUB 2023

Open Call for the postdoctoral position 2023

19 / 01 / 2023

Classification: Mathematics

A postdoctoral position in Mathematics is now open at the Institute of Mathematics at University of Barcelona (IMUB).
The position will start in September 2023 and it is for nine (9) months, with a gross salary of 19.000€.

Applications should include:

– The Mandatory Form (see the link below (*))
– CV
– Motivation letter or Research Statement
– 1 or 2 letters of recommendation, to be sent separately to the same email address (imub@ub.edu) by the professor who writes the letter.
– Letter of support from the host research group of IMUB

The deadline of the application: 14/02/2023

INSTRUCTIONS OF HOW TO APPLY:
Send the documents to imub@ub.edu with pvallezs@ub.edu in CC.
The title of the email should be: «Postdoc 2023 application – NAME OF CANDIDATE»

*Link of the MANDATORY FORM https://seu.ub.edu/documentPublic/download/367235

**For further information (in catalan) consult the Formal announcement
https://seu.ub.edu/ofertaPublicaCategoriaPublic/listPublicacionsAmbCategoria?categoria.id=367225

***Condition (in catalan) of the call application of the selection
https://seu.ub.edu/documentPublic/download/367233 and https://seu.ub.edu/documentPublic/download/367234

****If you have any question do not hesitate to contact us to the email imub@ub.edu

More information
https://seu.ub.edu/ofertaPublicaCategoriaPublic/listPublicacionsAmbCategoria?categoria.id=367225

Conferència de la Dra. Marta Sanz-Solé a l’Acadèmia de Ciències i Arts de Barcelona

Conferència Dra. Marta Sanz-Solé

02 / 12 / 2022

La professora de la Universitat de Barcelona Marta Sanz-Solé farà la conferència L’esfera browniana: un objecte de l’univers aleatori a l’Acadèmia de Ciències i Arts de Barcelona el proper 15 de desembre de 2022 a les 19h.

More information
 https://www.racab.cat/noticies/2022/2022-nov-28

Next Colloquium: Enumerative geometry after string theory (by Barbara Fantechi)

11 / 11 / 2022

Next November 25th, 2022 a 12.15 (Room T1) there will be the IMUB-colloquium «Enumerative geometry after string theory» by Barbara Fantechi.

Abstract: At the beginning of the 90s, new ideas from physics led to striking formulas for classical questions, if they could be put on a mathematically solid basis.This led to a Fields medal for a physicist (Edward Witten), and set the ball rolling for a veritable avalanche of new ideas and results that shows no sign of slowing down, three decades later.

Collectanea Mathematica Best Paper 2021 announced

22 / 09 / 2022

Collectanea Mathematica Best Paper 2021 awarded
22 / 09 / 2022
Collectanea Mathematica Best Paper 2021 is awarded to professors

Adam Boocher & Derrick Wigglesworth

for the work: «Large lower bounds for the Betti numbers of graded modules with low regularity». Collectanea Mathematica (2021) 72: 393–410.

The jury was formed by professors

Albert Clopp, Carlos D’Andrea, Núria Fagella, Ignasi Mundet i Riera, Joaquim Ortega-Cerdà and Xavier Ros-Oton

Proclamació candidatures a director de l’IMUB 2022

14 / 06 / 2022

ROCLAMACIÓ DE CANDIDATURES A DIRECTOR/A DE L’IMUB

El director de l’IMUB, Joaquim Ortega Cerdà d’acord amb el que estableix l’article 22.1.c) del Reglament general d’eleccions de la Universitat de Barcelona proclama el següent candidat a director de l’IMUB

Candidatura:

Nom i cognoms: Xavier Jarque Ribera

Eleccions a la direcció de l’IMUB

30 / 05 / 2022

S’acaben de convocar eleccions a la direcció de l’IMUB segons el calendari:

https://www.ub.edu/seu-electoral/sites/default/files/2022-05/ConvocatoriaDirector_signed_0.pdf

La presentació de candidatures és del 31 de maig al 10 de juny de 2022. Les eleccions seran el 28 de juny.

El cens són els membres del Consell de direcció de l’IMUB.

Acte Acadèmic en honor a la Dra. Marta Sanz

25 / 05 / 2022

El dimecres dia 1 de juny se celebra a l’aula Magna de l’edifici històric una jornada acadèmica que s’emmarca dins del Congrés que se celebra aquella mateixa setmana en honor a la Dra. Marta Sanz.

De 9 a 10 del matí se celebrarà un acte institucional de reconeixement a la Dra. Marta Sanz en el que hi intervindran el Rector de la Universitat de Barcelona, el Degà de la Facultat, la Presidenta de la Societat Catalana de Matemàtiques, el Director en funcions del IMUB, la Presidenta de la  Real Sociedad Matemática Española, el Director del CRM, el President de la European Mathematical Society i la mateixa Dra. Marta Sanz.

En acabar aquest acte se celebraran dos col·loquis, un a les 10:30 a càrrec del Professor Michael Roeckner i un altre a les 12 a càrrec del Professor Samy Tindel.

Collectanea Mathematica Q1 at SCImago 2021

23 / 05 / 2022

Collectanea Mathematica has reached Q1 at the latest SCImago ranking

Collectanea Mathematica distinguished paper award 2021

13 / 05 / 2022

Distinguished Paper Award – Collectanea Mathematica 2021

• Requirements: All papers published in Collectanea Mathematica in the year 2021 (i.e. those which appear in volume 72, issues 1, 2 and 3) are eligible.
• Award: The authors of the selected paper will receive 3,000 € plus a diploma certifying the distinction. If the paper has several authors, the award will be divided evenly among all the authors.
• Selection Committee: The committee will be composed by the current members of Collectanea Mathematica’s editorial board plus two external academic faculty.
• Calendar: The external members of the committee will be selected by June 2022 and the award will be announced in September 2022.
• Ceremony: The award is expected to be delivered during the Open of the Calendar year 2022-2023 of the School of Mathematics at the University of Barcelona. If extra funding is available, one of the authors may be invited to receive the award and give a colloquium at the Math Institute of the University of Barcelona (IMUB) at this event or later.

Proclamació de candidats electes al Consell de Direcció de l’IMUB

09 / 05 / 2022

Col·lectiu de personal acadèmic permanent:
Carles Casacuberta Vergés
Maria Carmen Cascante Canut
Carlos Antonio D’Andrea
Núria Fagella Rabionet
Xavier Jarque Ribera
Simone Marchesi
Arturo Vieiro Yanes

Colloquium IMUB Ivan Smith

29 / 04 / 2022

La propera sessió del col·loqui de l’IMUB, tindrà lloc el proper 4 de maig en l’aula T1 a les 12:15

Conferenciant: Ivan Smith (Cambridge University)

Title: Floer homothopy theory

Abstract: Homotopy theory studies the algebraic topology of (nice) spaces, and an
important point is that many phenomena become simpler if you work
`stably’ in a certain sense. Floer theory involves counting holomorphic
curves in symplectic manifolds and arises naturally in algebraic geometry
and dynamics; an important point is that one wants to count such
curves, but can traditionally only do so working over the rationals,
because of finite symmetry groups. Recently, ideas from stable
homotopy theory have allowed one to define certain Floer-theoretic
invariants over the integers. I will try and explain some of the
background to both fields, and what makes this new connection
between the two possible.

Convocatòria de les beques Màster+UB

28 / 04 / 2022

Programa Màster+UB de captació d’estudiants per a cursar un màster universitari i incentivar vocacions cientifíques en el sí d’un grup de recerca, curs 2022-2023

Dirigides a l’alumnat de màster de Matemàtica Avançada de la Facultat de

Termini: del 26 d’abril al 13 maig.

Més Informació

Proclamació candidatures al consell director de l’IMUB

25 / 04 / 2022

Candidatures Consell IMUB

Eleccions al consell director de l’IMUB

25 / 03 / 2022

S’acaben de convocar eleccions per l’IMUB segons el calendari:

https://www.ub.edu/seu-electoral/sites/default/files/2022-03/Calendari.pdf

Investigadors en formació ( https://www.ub.edu/seu-electoral/proces-electoral/eleccions-consell-de-direccio-dinstitut-institut-de-matematica-imub-investigadors )
Investigadors doctors no permanents ( https://www.ub.edu/seu-electoral/proces-electoral/eleccions-consell-de-direccio-dinstitut-institut-de-matematica-imub-0 )
Personal acadèmic permanent ( https://www.ub.edu/seu-electoral/proces-electoral/eleccions-consell-de-direccio-dinstitut-institut-de-matematica-imub-personal )

Les eleccions seran el 6 de maig.

El cens es pot consultar en:

http://www.imub.ub.edu/wp-content/uploads/2022/03/Convocatoria-2022Investigadors-en-Formacio.pdf

http://www.imub.ub.edu/wp-content/uploads/2022/03/Cens-2022doctors-Nopermanents.xlsx

http://www.imub.ub.edu/wp-content/uploads/2022/03/Cens-2022permanents.xlsx

Les esmenes al cens es poden presentar fins al 5 d’abril