This is a list of the problem lists that Erdős wrote, in chronological order. The problem count reflects how many problems in this database appear in that paper. The order in which these problems appear in the database may not correlate at all with the order they are presented in the paper.

Papers with a green background have been completely checked, and so the database should contain all problems in that paper. There remain many problem lists of Erdős that have only been partially, if at all, checked against this database. One day, hopefully, all of the problems in the lists below will have been entered into this database. One purpose of this list to show where the work remains to be done.

I believe this list is complete; if you know of a problem list (i.e. a paper (co)written by Erdős whose main purpose is to discuss open problems) not on the list please let me know.

There are 142 lists, of which 34 are completely checked.

12 problems (5 solved) |
Some problems on the distribution of prime numbersC.I.M.E., Teoria dei numeri (1955) |
---|---|

11 problems (3 solved) |
Problems and results in additive number theoryColloque sur la Théorie des Nombres, Bruxelles, 1955 127-137 (1956) MR 0079027 |

29 problems (18 solved) |
Some unsolved problemsMichigan Math. J. 291-300 (1957) MR 98702 |

5 problems (1 solved) |
Über einige Probleme der additiven ZahlentheorieSammelband zu Ehren des 250. Geburtstages Leonhard Eulers 116-119 (1959) MR 176972 |

110 problems (49 solved) |
Some unsolved problemsMagyar Tud. Akad. Mat. Kutató Int. Közl. 221-254 (1961) MR 177846 |

0 problems (0 solved) |
Quelques problémes de théorie des nombresMonographies de L'Enseignement Mathématique, No. 6 81-135 (1963) MR 158847 |

0 problems (0 solved) |
Problems and results on diophantine approximationsCompositio Math. 52-65 (1964) MR 179131 |

7 problems (2 solved) |
Extremal problems in graph theoryTheory of Graphs and its Applications (Proc. Sympos. Smolenice, 1963) 29-36 (1964) MR 180500 |

0 problems (0 solved) |
Extremal problems in number theoryProc. Sympos. Pure Math., Vol. VIII 181-189 (1965) MR 174539 |

0 problems (0 solved) |
Some recent advances and current problems in number theoryLectures on Modern Mathematics, Vol. III 196-244 (1965) MR 177933 |

0 problems (0 solved) |
Problems and results on the convergence and divergence properties of the Lagrange interpolation polynomials and some extremal problemsMathematica (Cluj) 65-73 (1967) MR 233114 |

0 problems (0 solved) |
Extremal problems in graph theoryA Seminar on Graph Theory 54-59 (1967) MR 223263 |

15 problems (2 solved) |
Some applications of graph theory to number theoryThe Many Facets of Graph Theory (Proc. Conf., Western Mich. Univ., Kalamazoo, Mich., 1968) 77-82 (1969) MR 250917 |

0 problems (0 solved) |
Problems and results in chromatic graph theoryProof Techniques in Graph Theory (Proc. Second Ann Arbor Graph Theory Conf., Ann Arbor, Mich., 1968) 27-35 (1969) MR 252273 |

6 problems (0 solved) |
Some extremal problems in combinatorial number theoryMathematical Essays Dedicated to A. J. Macintyre 123-133 (1970) MR 276194 |

2 problems (1 solved) |
Some extremal problems in graph theoryCombinatorial theory and its applications, I-III (Proc. Colloq., Balatonfüred, 1969) 377-390 (1970) MR 300924 |

0 problems (0 solved) |
Some applications of graph theory to number theoryProc. Second Chapel Hill Conf. on Combinatorial Mathematics and its Applications (Univ. North Carolina, Chapel Hill, N.C., 1970) 136-145 (1970) MR 266845 |

6 problems (2 solved) |
Some problems in additive number theoryAmer. Math. Monthly 619-621 (1970) MR 268141 |

0 problems (0 solved) |
Problems in combinatorial set theoryCombinatorial Structures and their Applications (Proc. Calgary Internat. Conf., Calgary, Alta., 1969) 97-100 (1970) MR 263640 |

0 problems (0 solved) |
Problems and results in finite and infinite combinatorial analysisAnn. New York Acad. Sci. 115-124 (1970) MR 263675 |

1 problem (0 solved) |
Some unsolved problems in graph theory and combinatorial analysisCombinatorial Mathematics and its Applications (Proc. Conf., Oxford, 1969) 97-109 (1971) MR 0277392 |

0 problems (0 solved) |
Problems and results in combinatorial analysisCombinatorics (Proc. Sympos. Pure Math., Vol. XIX, Univ. California, Los Angeles, Calif., 1968) 77-89 (1971) MR 432462 |

0 problems (0 solved) |
Unsolved problems in set theoryAxiomatic Set Theory (Proc. Sympos. Pure Math., Vol. XIII, Part I, Univ. California, Los Angeles, Calif., 1967) 17-48 (1971) MR 280381 |

0 problems (0 solved) |
Extremal problems in number theoryProceedings of the 1972 Number Theory Conference (Univ. Colorado, Boulder, Colo.) 80-86 (1972) MR 392900 |

61 problems (21 solved) |
Problems and results on combinatorial number theoryA survey of combinatorial theory (Proc. Internat. Sympos., Colorado State Univ., Fort Collins, Colo., 1971) 117-138 (1973) MR 0360509 |

0 problems (0 solved) |
Résultats et problémes en théorie des nombresSéminaire Delange-Pisot-Poitou (14e année: 1972/73), Théorie des nombres, Fasc. 2 Exp. No. 24, 7 (1973) MR 396376 |

22 problems (4 solved) |
Remarks on some problems in number theoryMath. Balkanica 197-202 (1974) MR 429704 |

0 problems (0 solved) |
Extremal problems on graphs and hypergraphs75-84 (1974) MR 360350 |

8 problems (3 solved) |
Unsolved Problems278-297 (1974) MR 360350 |

0 problems (0 solved) |
Unsolved and solved problems in set theoryProceedings of the Tarski Symposium (Proc. Sympos. Pure Math., Vol. XXV, Univ. California, Berkeley, Calif., 1971) 269-287 (1974) MR 357122 |

2 problems (1 solved) |
Some recent progress on extremal problems in graph theoryCongr. Numer. 3-14 (1975) |

0 problems (0 solved) |
Problems and results in combinatorial number theoryJournées Arithmétiques de Bordeaux (Conf., Univ. Bordeaux, Bordeaux, 1974) 295-310 (1975) MR 0374075 |

2 problems (1 solved) |
Problems and results on finite and infinite graphsRecent advances in graph theory (Proc. Second Czechoslovak Sympos., Prague, 1974) 183-192. (loose errata) (1975) MR 389669 |

0 problems (0 solved) |
Problems and results on finite and infinite combinatorial analysisInfinite and finite sets (Colloq., Keszthely, 1973; dedicated to P. Erdős on his 60th birthday), Vols. I, II, III 403-424 (1975) MR 389607 |

0 problems (0 solved) |
On some problems of elementary and combinatorial geometryAnn. Mat. Pura Appl. (4) 99-108 (1975) MR 411984 |

0 problems (0 solved) |
Problems and results on Diophantine approximations. IIRépartition modulo 1 (Actes Colloq., Marseille-Luminy, 1974) 89-99 (1975) MR 412138 |

3 problems (0 solved) |
Some problems on elementary geometryAustral. Math. Soc. Gaz. 2-3 (1975) |

3 problems (2 solved) |
Problems and results in combinatorial analysisColloquio Internazionale sulle Teorie Combinatorie (Roma, 1973), Tomo II 3-17 (1976) MR 0465878 |

3 problems (1 solved) |
Problems and results in graph theory and combinatorial analysisProceedings of the Fifth British Combinatorial Conference (Univ. Aberdeen, Aberdeen, 1975) 169-192 (1976) MR 409246 |

0 problems (0 solved) |
Some recent problems and results in graph theory, combinatorics and number theoryProceedings of the Seventh Southeastern Conference on Combinatorics, Graph Theory, and Computing (Louisiana State Univ., Baton Rouge, La., 1976) 3-14 (1976) MR 422031 |

0 problems (0 solved) |
Problems and results on number theoretic properties of consecutive integers and related questionsProceedings of the Fifth Manitoba Conference on Numerical Mathematics (Univ. Manitoba, Winnipeg, Man., 1975) 25-44 (1976) MR 422146 |

0 problems (0 solved) |
Problems and results on consecutive integersPubl. Math. Debrecen 271-282 (1976) MR 453671 |

0 problems (0 solved) |
Extremal problems on polynomialsApproximation theory, II (Proc. Internat. Sympos., Univ. Texas, Austin, Tex., 1976) 347-355 (1976) MR 477003 |

0 problems (0 solved) |
Problems and results on combinatorial number theory. IIJ. Indian Math. Soc. (N.S.) 285-298 (1976) MR 444552 |

1 problem (1 solved) |
Problems in number theory and combinatoricsProceedings of the Sixth Manitoba Conference on Numerical Mathematics (Univ. Manitoba, Winnipeg, Man., 1976) 35-58 (1977) MR 532690 |

0 problems (0 solved) |
Problems and results in combinatorial analysisProceedings of the Eighth Southeastern Conference on Combinatorics, Graph Theory and Computing (Louisiana State Univ., Baton Rouge, La., 1977) 3-12 (1977) MR 542437 |

1 problem (0 solved) |
Problems and results on combinatorial number theory. IIINumber theory day (Proc. Conf., Rockefeller Univ., New York, 1976) 43-72 (1977) MR 472752 |

0 problems (0 solved) |
Problémes extrémaux et combinatoires en théorie des nombresSéminaire Delange-Pisot-Poitou, 17e année: 1975/76, Théorie des nombres: Fasc. 2 Exp. No. G7, 5 (1977) MR 554189 |

0 problems (0 solved) |
Problems and results in combinatorial analysis and combinatorial number theoryProceedings of the Ninth Southeastern Conference on Combinatorics, Graph Theory, and Computing (Florida Atlantic Univ., Boca Raton, Fla., 1978) 29-40 (1978) MR 527930 |

0 problems (0 solved) |
Problems and results in graph theory and combinatorial analysisProblémes combinatoires et théorie des graphes (Colloq. Internat. CNRS, Univ. Orsay, Orsay, 1976) 127-129 (1978) MR 539958 |

3 problems (1 solved) |
Some more problems on elementary geometryAustral. Math. Soc. Gaz. 52-54 (1978) MR 509363 |

0 problems (0 solved) |
Set-theoretic, measure-theoretic, combinatorial, and
number-theoretic problems concerning point sets in Euclidean
spaceReal Anal. Exchange 113-138 (1978/79) MR 533932 |

0 problems (0 solved) |
Some extremal problems on families of graphs and related problemsCombinatorial mathematics (Proc. Internat. Conf. Combinatorial Theory, Australian Nat. Univ., Canberra, 1977) 13-21 (1978) MR 526725 |

2 problems (0 solved) |
On some unusual nonconventional problems in additive number
theoryMat. Lapok 9-14 (1978/82) MR 734602 |

0 problems (0 solved) |
Some solved and unsolved problems in combinatorial number
theoryMath. Slovaca 407-421 (1978) MR 534819 |

3 problems (0 solved) |
Some number theoretic problems on binomial coefficientsAustral. Math. Soc. Gaz. 97-99 (1978) MR 519358 |

17 problems (6 solved) |
Some unconventional problems in number theoryMath. Mag. 67-70 (1979) MR 527408 |

1 problem (0 solved) |
Problems and results in graph theory and combinatorial analysisGraph theory and related topics (Proc. Conf., Univ. Waterloo, Waterloo, Ont., 1977) 153-163 (1979) MR 538043 |

1 problem (0 solved) |
Old and new problems in combinatorial analysis and graph theorySecond International Conference on Combinatorial Mathematics (New York, 1978) 177-187 (1979) MR 556022 |

19 problems (1 solved) |
Some unconventional problems in number theoryActa Math. Acad. Sci. Hungar. 71-80 (1979) MR 515121 |

16 problems (4 solved) |
Some unconventional problems in number theoryAstérisque 73-82 (1979) MR 556666 |

0 problems (0 solved) |
Combinatorial problems in geometry and number theoryRelations between combinatorics and other parts of mathematics (Proc. Sympos. Pure Math., Ohio State Univ., Columbus, Ohio, 1978) 149-162 (1979) MR 525325 |

1 problem (1 solved) |
Some old and new problems in various branches of combinatoricsProceedings of the Tenth Southeastern Conference on Combinatorics, Graph Theory and Computing (Florida Atlantic Univ., Boca Raton, Fla., 1979) 19-37 (1979) MR 561032 |

28 problems (10 solved) |
Old and new problems and results in combinatorial number theory: van der Waerden's theorem and related topicsEnseign. Math. 325-344 (1979) MR 0570317 |

0 problems (0 solved) |
A survey of problems in combinatorial number theoryAnn. Discrete Math. 89-115 (1980) MR 593525 |

0 problems (0 solved) |
Problems and results in number theory and graph theoryProceedings of the Ninth Manitoba Conference on Numerical Mathematics and Computing (Univ. Manitoba, Winnipeg, Man., 1979) 3-21 (1980) MR 593699 |

4 problems (3 solved) |
Nine little known problems in combinatorial number theoryNormat 155-164, 180 (1980) MR 597617 |

0 problems (0 solved) |
Some combinational problems in geometryGeometry and differential geometry (Proc. Conf., Univ. Haifa, Haifa, 1979) 46-53 (1980) MR 585852 |

294 problems (84 solved) |
Old and new problems and results in combinatorial number theoryMonographies de L'Enseignement Mathematique (1980) MR 0592420 |

76 problems (32 solved) |
On the combinatorial problems which I would most like to see solvedCombinatorica 25-42 (1981) MR 602413 |

1 problem (0 solved) |
My Scottish Book 'Problems'The Scottish Book 35-43 (1981) |

6 problems (1 solved) |
Some new problems and results in graph theory and other branches of combinatorial mathematicsCombinatorics and graph theory 9-17 (1981) MR 593525 |

1 problem (0 solved) |
Some applications of graph theory and combinatorial methods to number theory and geometryAlgebraic methods in graph theory, Vol. I, II (Szeged, 1978) 137-148 (1981) MR 642037 |

1 problem (0 solved) |
Problems and results in graph theoryThe theory and applications of graphs (Kalamazoo, Mich., 1980) 331-341 (1981) MR 634537 |

0 problems (0 solved) |
Problems and results on finite and infinite combinatorial
analysis. IIEnseign. Math. (2) 163-176 (1981) MR 630965 |

0 problems (0 solved) |
Many old and on some new problems of mine in number theoryCongr. Numer. 3-27 (1981) MR 635934 |

0 problems (0 solved) |
Some problems and results on additive and multiplicative
number theoryAnalytic number theory (Philadelphia, Pa., 1980) 171-182 (1981) MR 654526 |

0 problems (0 solved) |
Some new problems and results in graph theory and other
branches of combinatorial mathematicsCombinatorics and graph theory (Calcutta, 1980) 9-17 (1981) MR 655605 |

0 problems (0 solved) |
Solved and unsolved problems in combinatorics and
combinatorial number theoryCongr. Numer. 49-62 (1981) MR 681869 |

0 problems (0 solved) |
Problems and results in number theoryRecent progress in analytic number theory, Vol. 1 (Durham, 1979) 1-13 (1981) MR 637339 |

0 problems (0 solved) |
Problems and results on finite and infinite combinatorial
analysis. IILogic and algorithmic (Zurich, 1980) 131-144 (1982) MR 648300 |

0 problems (0 solved) |
Problems and results on block designs and set systemsCongr. Numer. 3-16 (1982) MR 725865 |

0 problems (0 solved) |
Miscellaneous problems in number theoryCongr. Numer. 25-45 (1982) MR 681700 |

0 problems (0 solved) |
Some new problems and results in number theoryNumber theory (Mysore, 1981) 50-74 (1982) MR 665438 |

6 problems (1 solved) |
Some remarks and problems in number theory related to the work
of EulerMath. Mag. 292-298 (1983) MR 720650 |

1 problem (0 solved) |
On some of my conjectures in number theory and combinatoricsProceedings of the fourteenth Southeastern conference on combinatorics, graph theory and computing (Boca Raton, Fla., 1983) 3-19 (1983) MR 734525 |

17 problems (6 solved) |
Combinatorial problems in geometryMath. Chronicle 35-54 (1983) MR 706025 |

3 problems (0 solved) |
Some combinatorial, geometric and set theoretic problems in measure theoryMeasure Theory, Oberwolfach 1983: Proceedings of the Conference held at Oberwolfach, June 26-July 2, 1983 321-327 (1984) |

6 problems (3 solved) |
Research problemsPeriod. Math. Hungar. 101-103 (1984) MR 1553627 |

2 problems (1 solved) |
On some problems in graph theory, combinatorial analysis and
combinatorial number theoryGraph theory and combinatorics (Cambridge, 1983) 1-17 (1984) MR 777160 |

0 problems (0 solved) |
Some old and new problems in combinatorial geometryConvexity and graph theory (Jerusalem, 1981) 129-136 (1984) MR 791022 |

2 problems (1 solved) |
Extremal problems in number theory, combinatorics and
geometryProceedings of the International Congress of Mathematicians, Vol. 1, 2 (Warsaw, 1983) 51-70 (1984) MR 804676 |

0 problems (0 solved) |
Some new and old problems on chromatic graphsCombinatorics and applications (Calcutta, 1982) 118-126 (1984) MR 852032 |

8 problems (5 solved) |
Problems and results in combinatorial geometryDiscrete geometry and convexity (New York, 1982) 1-11 (1985) MR 809186 |

0 problems (0 solved) |
Problems and results on chromatic numbers in finite and infinite graphsGraph theory with applications to algorithms and computer science (Kalamazoo, Mich., 1984) 201-213 (1985) MR 812666 |

24 problems (5 solved) |
On some of my problems in number theory I would most like to see solvedNumber theory (Ootacamund, 1984) 74-84 (1985) MR 797781 |

0 problems (0 solved) |
Some of my old and new problems in elementary number theory
and geometryProceedings of the Sundance conference on combinatorics and related topics (Sundance, Utah, 1985) 97-106 (1985) MR 833541 |

0 problems (0 solved) |
Some problems and results in number theoryNumber theory and combinatorics. Japan 1984 (Tokyo, Okayama and Kyoto, 1984) 65-87 (1985) MR 827779 |

0 problems (0 solved) |
Some solved and unsolved problems of mine in number theoryTopics in analytic number theory (Austin, Tex., 1982) 59-75 (1985) MR 804242 |

0 problems (0 solved) |
Some problems on number theoryProceedings of the seventeenth Southeastern international conference on combinatorics, graph theory, and computing (Boca Raton, Fla., 1986) 225-244 (1986) MR 885283 |

18 problems (2 solved) |
Some problems on finite and infinite graphsLogic and combinatorics (Arcata, Calif., 1985) 223-228 (1987) MR 891250 |

0 problems (0 solved) |
Some combinatorial and metric problems in geometryIntuitive geometry (Siófok, 1985) 167-177 (1987) MR 910710 |

0 problems (0 solved) |
Problems and results on minimal bases in additive number
theoryNumber theory (New York, 1984-1985) 87-96 (1987) MR 894505 |

6 problems (1 solved) |
Problems and results in combinatorial analysis and graph theoryDiscrete Math. 81-92 (1988) |

0 problems (0 solved) |
Some old and new problems in combinatorial geometryApplications of discrete mathematics (Clemson, SC, 1986) 32-37 (1988) MR 974622 |

1 problem (0 solved) |
On the irrationality of certain series: problems and resultsNew advances in transcendence theory (Durham, 1986) 102-109 (1988) MR 971997 |

3 problems (2 solved) |
Some Problems and Results on Combinatorial Number TheoryAnnals of the New York Academy of Sciences 132-145 (1989) MR 1110810 |

0 problems (0 solved) |
On some problems and results in elementary number theorySichuan Daxue Xuebao 1-6 (1989) MR 1059667 |

0 problems (0 solved) |
Problems and results on extremal problems in number theory,
geometry, and combinatoricsProceedings of the 7th Fischland Colloquium, I (Wustrow, 1988) 6-14 (1989) MR 1050324 |

0 problems (0 solved) |
Some old and new problems on additive and combinatorial number
theoryCombinatorial Mathematics: Proceedings of the Third International Conference (New York, 1985) 181-186 (1989) MR 1018622 |

50 problems (18 solved) |
Some of my favourite unsolved problemsA tribute to Paul Erdős 467-478 (1990) MR 1117038 |

6 problems (1 solved) |
Problems and results on graphs and hypergraphs: similarities and differencesMathematics of Ramsey theory 12-28 (1990) MR 1083590 |

2 problems (2 solved) |
Some recent combinatorial problemsTechnical Report, University of Bielefeld (1990) |

0 problems (0 solved) |
On some of my favourite problems in graph theory and block designsMatematiche (Catania) 61-73 (1990) MR 1180999 |

0 problems (0 solved) |
Some of my old and new combinatorial problemsPaths, flows, and VLSI-layout (Bonn, 1988) 35-45 (1990) MR 1083376 |

32 problems (9 solved) |
Problems and results in combinatorial analysis and combinatorial number theoryGraph theory, combinatorics, and applications, Vol. 1 (Kalamazoo, MI, 1988) 397-406 (1991) MR 1170793 |

0 problems (0 solved) |
Problems and results on polynomials and interpolationApproximation theory (Kecskemét, 1990) 253-261 (1991) MR 1211436 |

0 problems (0 solved) |
On some unsolved problems in elementary geometryMat. Lapok (N.S.) 1-10 (1992) MR 1273073 |

18 problems (7 solved) |
Some of my favourite problems in various branches of combinatoricsMatematiche (Catania) 231-240 (1992) MR 1275857 |

4 problems (0 solved) |
Some of my forgotten problems in number theoryHardy-Ramanujan J. 34-50 (1992) MR 1215590 |

0 problems (0 solved) |
On some of my favourite problems in various branches of
combinatoricsFourth Czechoslovakian Symposium on Combinatorics, Graphs and Complexity (Prachatice, 1990) 69-79 (1992) MR 1206246 |

1 problem (1 solved) |
Some of my favorite solved and unsolved problems in graph
theoryQuaestiones Math. 333-350 (1993) MR 1254162 |

6 problems (4 solved) |
Some problems and results in cochromatic theoryQuo vadis, graph theory? 261-264 (1993) MR 1217997 |

2 problems (0 solved) |
Problems and results on set systems and hypergraphsExtremal problems for finite sets (Visegrád, 1991) 217-227 (1994) MR 1319165 |

28 problems (9 solved) |
Some problems in number theory, combinatorics and combinatorial geometryMath. Pannon. 261-269 (1994) MR 1304854 |

0 problems (0 solved) |
Problems and results in discrete mathematicsDiscrete Math. 53-73 (1994) MR 1313281 |

72 problems (26 solved) |
Some of my favourite problems in number theory, combinatorics, and geometryResenhas 165-186 (1995) MR 1370501 |

0 problems (0 solved) |
Some of my recent problems in combinatorial number theory, geometry and combinatoricsGraph theory, combinatorics, and algorithms, Vol. 1, 2 (Kalamazoo, MI, 1992) 335-349 (1995) MR 1405821 |

10 problems (3 solved) |
Some problems in number theoryOctogon Math. Mag. 3-5 (1995) MR 1374981 |

0 problems (0 solved) |
On some problems in combinatorial set theoryPubl. Inst. Math. (Beograd) (N.S.) 61-65 (1995) MR 1387354 |

0 problems (0 solved) |
Some old and new problems in approximation theory: research problems 95-1Constr. Approx. 419-421 (1995) MR 1350678 |

1 problem (1 solved) |
Extremal problems in combinatorial geometryHandbook of combinatorics, Vol. 1, 2 809-874 (1995) MR 1373673 |

0 problems (0 solved) |
Some of my favourite problems on cycles and colouringsTatra Mt. Math. Publ. 7-9 (1996) MR 1402943 |

13 problems (6 solved) |
Some problems I presented or planned to present in my short
talkAnalytic number theory, Vol. 1 (Allerton Park, IL, 1995) 333-335 (1996) MR 1399346 |

20 problems (7 solved) |
Problems in number theoryNew Zealand J. Math. 155-160 (1997) MR 1601631 |

24 problems (12 solved) |
Some old and new problems in various branches of combinatoricsDiscrete Math. 227-231 (1997) MR 1439273 |

53 problems (18 solved) |
Some of my favorite problems and resultsThe mathematics of Paul Erdős, I 47-67 (1997) MR 1425174 |

20 problems (6 solved) |
Some recent problems and results in graph theoryDiscrete Math. 81-85 (1997) MR 1432220 |

47 problems (11 solved) |
Some of my favourite unsolved problemsMath. Japon. 527-537 (1997) MR 1487304 |

37 problems (11 solved) |
Some unsolved problemsCombinatorics, geometry and probability (Cambridge, 1993) 1-10 (1997) MR 1476428 |

0 problems (0 solved) |
Some of my new and almost new problems and results in combinatorial number theoryNumber theory (Eger, 1996) 169-180 (1998) MR 1628841 |

12 problems (1 solved) |
A selection of problems and results in combinatoricsCombin. Probab. Comput. 1-6 (1999) MR 1684620 |