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Universal point sets for planar graphs
Mohar
✭✭✭
0
Graph Theory
»
Topological G.T.
»
Drawings
mdevos
Linear Hypergraphs with Dimension 3
Ossona de Mendez
;
Rosenstiehl
;
de Fraysseix
✭✭
0
Graph Theory
»
Topological G.T.
»
Drawings
taxipom
Consecutive non-orientable embedding obstructions
✭✭✭
0
Graph Theory
»
Topological G.T.
»
Genus
Bruce Richter
What is the largest graph of positive curvature?
DeVos
;
Mohar
✭
1
Graph Theory
»
Topological G.T.
»
Planar graphs
mdevos
Growth of finitely presented groups
Adyan
✭✭✭
0
Group Theory
mdevos
Subgroup formed by elements of order dividing n
Frobenius
✭✭
0
Group Theory
dlh12
Burnside problem
Burnside
✭✭✭✭
0
Group Theory
dlh12
Inverse Galois Problem
Hilbert
✭✭✭✭
0
Group Theory
tchow
Which lattices occur as intervals in subgroup lattices of finite groups?
✭✭✭✭
0
Group Theory
williamdemeo
F_d versus F_{d+1}
Krajicek
✭✭✭
0
Logic
zitterbewegung
Tarski's exponential function problem
Tarski
✭✭
0
Logic
Charles
Termination of the sixth Goodstein Sequence
Graham
✭
0
Logic
mdevos
Fixed-point logic with counting
Blass
✭✭
0
Logic
»
Finite Model Theory
dberwanger
Order-invariant queries
Segoufin
✭✭
0
Logic
»
Finite Model Theory
dberwanger
Monadic second-order logic with cardinality predicates
Courcelle
✭✭
0
Logic
»
Finite Model Theory
dberwanger
Blatter-Specker Theorem for ternary relations
Makowsky
✭✭
0
Logic
»
Finite Model Theory
dberwanger
MSO alternation hierarchy over pictures
Grandjean
✭✭
0
Logic
»
Finite Model Theory
dberwanger
Finite entailment of Positive Horn logic
Martin
✭✭
0
Logic
»
Finite Model Theory
LucSegoufin
Vertex Cover Integrality Gap
Atserias
✭✭
0
Logic
»
Finite Model Theory
dberwanger
Lonely runner conjecture
Cusick
;
Wills
✭✭✭
0
Number Theory
mdevos
MacEachen Conjecture
McEachen
✭
1
Number Theory
billymac00
Chowla's cosine problem
Chowla
✭✭✭
0
Number Theory
mdevos
Quartic rationally derived polynomials
Buchholz
;
MacDougall
✭✭✭
0
Number Theory
mdevos
A discrete iteration related to Pierce expansions
Shallit
✭✭
1
Number Theory
shallit
Algebraic independence of pi and e
✭✭✭
0
Number Theory
porton
Odd perfect numbers
Ancient/folklore
✭✭✭
1
Number Theory
azi
Diophantine quintuple conjecture
✭✭
1
Number Theory
maxal
Twin prime conjecture
✭✭✭✭
0
Number Theory
kaushiks.nitt
Polignac's Conjecture
de Polignac
✭✭✭
0
Number Theory
Hugh Barker
Special Primes
George BALAN
✭
1
Number Theory
maththebalans
Primitive pythagorean n-tuple tree
✭✭
0
Number Theory
tsihonglau
3 is a primitive root modulo primes of the form 16 q^4 + 1, where q>3 is prime
✭✭
0
Number Theory
princeps
Erdős–Straus conjecture
Erdos
;
Straus
✭✭
1
Number Theory
ACW
Lucas Numbers Modulo m
✭✭
1
Number Theory
Martin Erickson
Sum of prime and semiprime conjecture
Geoffrey Marnell
✭✭
0
Number Theory
princeps
Giuga's Conjecture on Primality
Giuseppe Giuga
✭✭
0
Number Theory
princeps
Alexa's Conjecture on Primality
Alexa
✭✭
0
Number Theory
princeps
Birch & Swinnerton-Dyer conjecture
✭✭✭✭
0
Number Theory
eyoong
The Erdos-Turan conjecture on additive bases
Erdos
;
Turan
✭✭✭✭
0
Number Theory
»
Additive N.T.
mdevos
Goldbach conjecture
Goldbach
✭✭✭✭
0
Number Theory
»
Additive N.T.
Benschop
Are there an infinite number of lucky primes?
Lazarus: Gardiner: Metropolis
;
Ulam
✭
1
Number Theory
»
Additive N.T.
cubola zaruka
The Riemann Hypothesis
Riemann
✭✭✭✭
0
Number Theory
»
Analytic N.T.
eric
Schanuel's Conjecture
Schanuel
✭✭✭✭
0
Number Theory
»
Analytic N.T.
Charles
Distribution and upper bound of mimic numbers
Bhattacharyya
✭✭
1
Number Theory
»
Analytic N.T.
facility_cttb@i...
Lindelöf hypothesis
Lindelöf
✭✭
0
Number Theory
»
Analytic N.T.
porton
Euler-Mascheroni constant
✭✭✭
0
Number Theory
»
Analytic N.T.
Juggernaut
Is Skewes' number e^e^e^79 an integer?
✭✭
0
Number Theory
»
Analytic N.T.
VladimirReshetnikov
Are all Fermat Numbers square-free?
✭✭✭
0
Number Theory
»
Analytic N.T.
kurtulmehtap
Are there only finite Fermat Primes?
✭✭✭
0
Number Theory
»
Analytic N.T.
kurtulmehtap
Are all Mersenne Numbers with prime exponent square-free?
✭✭✭
0
Number Theory
»
Analytic N.T.
kurtulmehtap
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