FWF P24574 - Explicit Problems in Diophantine Analysis and Geometry

The mathematical study of Diophantine problems, that are problems to be solved in integers, rationals and their generalizations to number fields and function fields, is called Diophantine Analysis. Main tools that are used for solving such problems include the Thue-Siegel-Roth-Schmidt method and Baker's method on linear forms in logarithms of algebraic numbers for number fields and the generalization of the ABC-theorem due to Brownawell and Masser for function fields. Since working with equations is somewhat limited, it is a modern approach to study Diophantine problems that have also a geometrical meaning; this is the approach which is studied in Diophantine Geometry. Here the solution set to a Diophantine problem is viewed e.g. as a scheme of finite type over the spectrum of the ring of integers and then also tools from algebraic geometry are used to study it.
In this project we shall investigate several further and new explicit Diophantine problems. We shall often take a more geometric point of view. These questions include problems on lacunary rational functions that are composite, rational and integral points on fibered surfaces also in connection with problems related to linear recurrences and families of classical Diophantine equations over function fields, and Diophantine tuples.
The project is funded by the FWF Austrian Science Fund and has started on 01.09.2012. The place of research was initially at the Institute for Analysis and Computational Number Theory (Math A), TU Graz (Steyrergasse 30/II, 8010 Graz, Austria). The project was shifted to the Department of Mathematics, University of Salzburg (Hellbrunnerstr. 34/I, 5020 Salzburg, Austria) on 01.04.2013. The project has ended on 31.12.2016.
Open Positions: Currently there are no positions open in this project.
Clemens Fuchs
Christoph Hutle (formerly funded by FWF-P24574)
Christina Karolus
Volker Ziegler
Fabrizio Barroero (Graz/Pisa/Manchester)
Kwok Chi Chim (Graz; funded by FWF-P26114)
Christian Elsholtz (Graz)
Christopher Frei (Graz/München)
Roswitha Hofer (Linz)
Dijana Kreso (Graz/Salzburg)
Shanta Laishram (Dehli)
Roland Paulin (Bonn; formerly funded by FWF-P24574)
Gulio Peruginelli (Graz; funded by FWF-P23245)
Istvan Pink (Debrecen; formerly funded by FWF-P24801)
Petra Tadic (Pula/Zagreb; formerly funded by FWF-P24574)
Robert Tichy (Graz)
Mingxi Wang (formerly funded by FWF-P24574)
Gisbert Wüstholz (Zurich/Graz; formerly funded by FWF-P26114)

Upcoming Events & News:
arXiv:1705.05044 added on May 17, 2017!
Documents & Publications:
D. Kreso, Diophantine equations in separated variables and lacunary polynomials, arXiv:1705.05044, Int. J. Number Theory, to appear
C. Fuchs, C. Karolus, D. Kreso, Decomposable polynomials in second order linear recurrence sequences, arXiv:1703.03258
C. Karolus, Explicit bounds for composite lacunary polynomials, arXiv:1704.04292
R. Paulin, On the minimal degree of morphisms between algebraic curves, arXiv:1608.08319
C. Fuchs, C. Hutle, F. Luca, L. Szalay, Diophantine triples and k-generalized Fibonacci sequences, arXiv:1602.08236, Bulletin of the Malaysian Mathematical Sciences Society, to appear: PDF
C. Fuchs, C. Hutle, N. Irmak, F. Luca, L. Szalay, Only finitely many Tribonacci Diophantine triples exist, arXiv:1508.07760, Math. Slovaca, to appear
C. Fuchs, V. Mantova and U. Zannier, On fewnomials, integral points and a toric version of Bertini's theorem, arXiv:1412.4548, JAMS, to appear
C. Fuchs, L. Hajdu, 30 years of collaboration, arXiv:1511.07689, Period. Math. Hung. 74 (2017), 255-274
M. Schreyer, R. Paulin and W. Trutschnig, On the exact region determined by Kendall's tau and Spearman's rho, arXiv:1502.04620, J. R. Stat. Soc. Ser. B. Stat. Methodol. 79 (2017), 613-633
R. Paulin, Largest values of the Stern sequence, alternating binary expansions and continuants, arXiv:1608.08322, J. Integer Seq. 20 (2017) Article 17.2.8
M. Wang, A dynamical Mordell Lang property on the disc, arXiv:1403.3975, Trans. Amer. Math. Soc. 369 (2017), 2183-2204
C. Fuchs and H.D. Pham, Some applications of the p-adic analytic subgroup theorem, arXiv:1412.1248, Glas. Mat. 51(71) (2016), 335-343
L. Hajdu, S. Laishram, M. Szikszai, Perfect powers in products of terms of elliptic divisibility sequences, arXiv:1604.03707, Bull. Austr. Math. Soc. 94 (2016), 395-404
C. Fuchs, A. Jurasic and R. Paulin, Elementary resolution of a family of quartic Thue equations over function fields, arXiv:1412.3216, Monatsh. Math. 180 (2016), 205-211
R. Paulin, An explicit Andre-Oort type result for P^1(C)xG_m(C) based on logarithmic forms, arXiv:1403.2949, Publ. Math. Debrecen 88 (2016), 21-33
R. Paulin, An explicit Andre-Oort type result for P^1(C)xG_m(C), arXiv:1403.2264, Math. Proc. Cambridge Philos. Soc. 159 (2015), 153-163
Q. Lin and M. Wang, Isogeny orbits in a family of abelian varieties, arXiv:1403.3976, Acta Arith. 170 (2015), 161-173
C. Fuchs and H.D. Pham, Commutative algebraic groups and p-adic linear forms, arXiv:1404.3975, Acta Arith. 169 (2015), 115-147
I. Gusic and P. Tadic, Injectivity of the specialization homorphism of elliptic curves, arXiv:1211.3851, J. Number Theory 148 (2015), 137-152
C. Fuchs and H.D. Pham, The p-adic analytic subgroup theorem revisited, arXiv:1502.00768, p-Adic Number, Ultrametric Analysis and Applications 7 (2015), 143-156
A. Dujella and C. Elsholtz, Sumsets being squares, Acta Math. Hungar. 141 (2013), 353-357
Y.F. Bilu, C. Fuchs, F. Luca and A. Pinter, Combinatorial Diophantine equations and a refinement of a theorem on separated variables equations, Publ. Math. Debrecen 82/1 (2013), 219-254
P. Tadic, The rank of certain subfamilies of the elliptic curve y^2=x^3-X+T^2, Ann. Math. Inform. 40 (2012), 145-153
C. Fuchs and A. Dujella, On a problem of Diophantus for rationals, J. Number Theory 132 (2012), 2075-2083
C. Fuchs and U. Zannier, Composite rational functions expressible with few terms, J. Eur. Math. Soc. (JEMS) 14 (2012), 175-208

Jan-Hendrik Evertse (Leiden), 03.-10.04.2016
Gisbert Wüstholz (Zürich/Graz), 14.-20.02.2016
Martin Widmer (London), 14.-20.02.2016
Michael Stoll (Bayreuth), 14.-20.02.2016
Kalman Györy (Debrecen), 14.-20.02.2016
Andrej Dujella (Zagreb), 14.-20.02.2016
Yui Bilu (Bordeauy), 14.-20.02.2016
Michael Bennett (Vancouver), 14.-20.02.2016
Shanta Laishram (Dehli), 19.-25.04.2015
Florian Luca (Mexico), 21.-26.04.2015
Yann Bugeaud (Strasbourg), 28.01.-02.02.2015
Kwok Chi Chim (Graz), 03.-06.12.2014
Gisbert Wüstholz (Zurich/Graz), 03.-06.12.2014
Vincenzo Mantova (Camerino/Pisa), 12.-14.11.2014
Lajos Hadju (University of Debrecen), 25.-30.11.2013
Attila Pethö (University of Debrecen), 25.-30.11.2013
Akos Pinter (University of Debrecen), 25.-30.11.2013
Rafael von Känel (MPI Bonn), 25.-30.11.2013
Andrej Dujella (University of Zagreb), 25.-30.11.2013
Francesco Veneziano (TU Graz/ESI), 14.-16.11.2013
Gisbert Wüstholz (ETH Zurich), 12.-13.11.2013
Fabrizio Barroero (TU Graz), 17.10.2013
Mingxi Wang (TU Darmstadt), 20.-21.06.2013
Hiep Pham (ETH Zurich), 23.-24.05.2013
Christian Elsholtz (TU Graz), 15.-16.05.2013
Akos Pinter (University of Debrecen), 02.04.2013
Andrej Dujella (University of Zagreb), 15.-16.11.2012
Tomislav Pejkovic (University of Zagreb), 15.-16.11.2012
Vinko Petricevic (University of Zagreb), 15.-16.11.2012
Attila Pethö (University of Debrecen), 07.-11.11.2012

ELAZ2016, Strobl/Austria, 05.-09.09.2016
Workshop "Arithmetic and Geometry: Ten years in Alpbach", Alpbach/Austria, 26.06.-01.07.2016
14th Meeting of the Canadian Number Theory Association (CNTA XIV), Calgary/Canada, 20.06.-24.06.2016
Current Trends in Diophantine Geometry and Transcendence, Taipei/Taiwan, 23.-27.05.2016
Diophantische Approximationen, Oberwolfach/Germany, 10.-16.04.2016
Computational aspects of Diophantine equations, Salzburg/Austria, 15.-19.02.2016
Graz-Salzburg Workshop on Diophantine Problems, Graz/Austria, 26.-27.11.2015
Joint Austrian-Hungarian Mathematical Conference 2015, Györ/Hungary, 25.-27.08.2015
29th Journees Arithmetiques (JA2015), Debrecen/Hungary, 06.-10.07.2015
Workshop "Special cycles on Shimura curves", Alpbach/Austria, 05.-10.07.2015
Final ERC Meeting in Diophantine Geometry, Rome/Italy, 27.-28.05.2015
Pre-Alpbach Minicourse - Special cycles on Shimura curves, Zurich/Switzerland, 30.03.-01.04.2015
Conference on Number Theory and Algebra (on the occasion of the 60th birthday of Ivica Gusic), Zagreb/Croatia, 26.-28.11.2014
Conference on Diophantine m-tuples and related problems, Westville/USA, 13.-15.11.2014
CIRM-Conference "Diophantine approximation and transcendence", Luminy/France, 15.-19.09.2014
ERC-conference ``Diophantine Geometry, Unlikely Intersections and Algebraic Dynamics'', Cetraro/Italy, 14.-19.07.2014
Workshop "Periods and heights of CM abelian varieties", Alpbach/Austria, 06.-11.07.2014
Graz-Salzburg Workshop on Diophantine Problems, Graz/Austria, 19.-20.05.2014
Preparation for Alpbach 2014 (by V. Maillot and Damian Roessler), Zurich/Switzerland, 07.-10.04.2014
AAA87 - 87th Workshop on General Algebra, Linz/Austria, 07.-09.02.2014
CIRM-Conference "Unlikely Intersections", Luminy/France, 03.-07.02.2014
ESI-Miniworkshop on ``Explicit Problems in Diophantine Analysis and Geometry'', Vienna/Austria, 29.-30.11.2013
ESI-Workshop, Vienna/Austria, 25.-29.11.2013
ESI-Program "Heights in Diophantine geometry, group theory and additive combinatorics", Vienna/Austria, 21.10.-20.12.2013
W.M. Schmidt 80, Vienna/Austria, 09.-11.10.2013
Thue 150, Bordeaux/France, 30.09.-04.10.2013
18th ÖMG Congress and Annual DMV Meeting, Innsbruck/Austria, 23.-27.09.2013
Frits60 - "Special functions and special numbers". A conference in honour of Frits Beukers' 60th birthday, Utrecht/The Netherlands, 10.-12.07.2013
ProDoc-Workshop "p-adic Modular Forms", Alpbach/Austria, 07.-12.07.2013
28th Journées arithmétiques 2013, Grenoble/France, 01.-05.07.2013
25 years of Number Theory Seminars, FIM at ETH Zurich, Zurich/Switzerland, 03.-08.06.2013
BIRS-Workshop 13w5141 "The art of iterating rational functions over finite fields", Banff/Canada, 05.-10.05.2013
Research visit at ETH Zurich, Zurich/Switzerland, 17.-19.02.2013
ERC Intensive Research Period in Diophantine Geometry, Pisa/Italy, 20.-27.09.2012
ProDoc-Workshop "Multiple-Zeta-Values", Alpbach/Austria, 02.-07.09.2012

Impressum    17.05.2017