Algebra — Open Conjectures

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Includes conjectures from algebraic geometry, algebraic topology, algebraic K-theory, commutative algebra, ring theory, group theory, and algebraic curves.

Algebraic Geometry

# Conjecture Eponym(s) Comments
1 Hodge conjecture W. V. D. Hodge  
2 MNOP conjecture  
3 Standard conjectures on algebraic cycles  
4 Tate conjecture John Tate  
5 Virasoro conjecture Miguel Ángel Virasoro  
6 Weight monodromy conjecture  

Algebraic Topology

# Conjecture Eponym(s) Comments
1 Eilenberg–Ganea conjecture Samuel Eilenberg, Tudor Ganea  
2 Novikov conjecture Sergei Novikov  
3 Whitehead conjecture J. H. C. Whitehead  

Algebraic K-theory

# Conjecture Eponym(s) Comments
1 Bloch–Kato conjecture Spencer Bloch, Kazuya Kato  

Commutative Algebra

# Conjecture Eponym(s) Comments
1 Homological conjectures in commutative algebra  
2 Serre’s multiplicity conjectures Jean-Pierre Serre  

Ring Theory

# Conjecture Eponym(s) Comments
1 Jacobson’s conjecture Nathan Jacobson  
2 Kaplansky conjectures Irving Kaplansky  
3 Köthe conjecture Gottfried Köthe  

Group Theory

# Conjecture Eponym(s) Comments
1 Andrews–Curtis conjecture James J. Andrews, Morton L. Curtis Combinatorial group theory
2 Cherlin–Zilber conjecture Gregory Cherlin, Boris Zilber  
3 Herzog–Schönheim conjecture Marcel Herzog, Jochanan Schönheim  

Algebraic Curves

# Conjecture Eponym(s) Comments
1 Green’s conjecture Mark Lee Green