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Titlesort iconAuthor(s)Imp.¹Rec.²Area » Topic » SubtopicPosted by
Pentagon problemNesetril✭✭✭0Graph Theory » Coloring » HomomorphismsRobert Samal
Perfect 2-error-correcting codes over arbitrary finite alphabets.✭✭0Combinatorics » Codesdavidcullen
Perfect cuboid✭✭0Number Theory » Computational N.T.tsihonglau
Petersen coloring conjectureJaeger✭✭✭0Graph Theory » Coloring » Edge coloringmdevos
Point sets with no empty pentagonWood✭1GeometryDavid Wood
Polignac's Conjecturede Polignac✭✭✭0Number TheoryHugh Barker
Primitive pythagorean n-tuple tree✭✭0Number Theorytsihonglau
PTAS for feedback arc set in tournamentsAilon; Alon✭✭0Graph Theory » Graph Algorithmsfhavet
Quartic rationally derived polynomialsBuchholz; MacDougall✭✭✭0Number Theorymdevos
Question about 'solving' something✭✭0Algebratigris35711
r-regular graphs are not uniquely hamiltonian.Sheehan✭✭✭0Graph Theory » Basic G.T. » CyclesRobert Samal
Raid Shadow Legends Cheats Generator 2024 (fresh strategy)✭✭0Algebratigris35711
Raid Shadow Legends Cheats Generator Android Ios 2024 Cheats Generator (HOT)✭✭0Algebratigris35711
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Raid Shadow Legends Generator Cheats Free 2024 in 5 minutes (New Generator Cheats Raid Shadow Legends)✭✭0Algebratigris35711
Rainbow AP(4) in an almost equinumerous coloringConlon✭✭0Combinatoricsvjungic
Rainbow Six Siege Cheats Generator Android Ios No Survey 2024 (Current Version)✭✭0Algebratigris35711
Rainbow Six Siege Cheats Generator Free 2024 in 5 minutes (successive Generator)✭✭0Algebratigris35711
Rainbow Six Siege Cheats Generator Latest Version 2024 New Cheats Generator (Unique)✭✭0Algebratigris35711
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Ramsey properties of Cayley graphsAlon✭✭✭0Graph Theory » Algebraic G.T.mdevos
Random stable roommatesMertens✭✭0Graph Theory » Basic G.T. » Matchingsmdevos
Rank vs. GenusJohnson✭✭✭0TopologyJesse Johnson
Real Racing 3 Cheats Generator in a few minutes new Cheats Generator 2024 (No Survey)✭✭0Algebratigris35711
Real Racing 3 Cheats Generator Tested on iOS and Android (Latest Method)✭✭0Algebratigris35711
Real Racing 3 Cheats Generator Working 2024 (Real Racing 3 Generator)✭✭0Algebratigris35711
Real roots of the flow polynomialWelsh✭✭0Graph Theory » Coloring » Nowhere-zero flowsmdevos
REAL* Free!! Bloons TD Battles Energy Medal Money Cheats Trick 2024✭✭0Algebratigris35711
REAL* Free!! Call Of Duty Mobile Cheats Generator (Trick 2024)✭✭0Algebratigris35711
REAL* Free!! Dragon Ball Z Dokkan Battle Cheats Generator (Trick 2024)✭✭0Algebratigris35711
REAL* Free!! Match Masters Coins Cheats Trick 2024✭✭0Algebratigris35711
Realisation problem for the space of knots in the 3-sphereBudney✭✭0Topologyrybu
Reconstruction conjectureKelly; Ulam✭✭✭✭0Graph Theoryzitterbewegung
Reed's omega, delta, and chi conjectureReed✭✭✭0Graph Theory » Coloring » Vertex coloringmdevos
Refuting random 3SAT-instances on $O(n)$ clauses (weak form)Feige✭✭✭0Theoretical Comp. Sci. » Complexity » Hardness of Approximationcwenner
Rendezvous on a lineAlpern✭✭✭0Unsortedmdevos
Rendezvous on a line✭✭0Algebratigris35711
Rise Of Kingdoms Cheats Generator 2023-2024 Edition (Verified)✭✭0Algebratigris35711
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Roller Coaster permutationsAhmed; Snevily✭✭✭0CombinatoricsTanbir Ahmed
Rota's unimodal conjectureRota✭✭✭0Combinatorics » Matroid Theorymdevos
Royal Match Free Coins Cheats 2024 Real Working New Method✭✭0Algebratigris35711
Ryser's conjectureRyser✭✭✭0Graph Theory » Hypergraphsmdevos
S(S(f)) = S(f) for reloidsPorton✭✭0Topologyporton
Saturated $k$-Sperner Systems of Minimum SizeMorrison; Noel; Scott✭✭1Combinatorics » PosetsJon Noel
Saturation in the HypercubeMorrison; Noel; Scott✭✭0CombinatoricsJon Noel
Schanuel's ConjectureSchanuel✭✭✭✭0Number Theory » Analytic N.T.Charles

Imp.¹: Importance (Low ✭, Medium ✭✭, High ✭✭✭, Outstanding ✭✭✭✭)
Rec.²: Recommended for undergraduates.

Note: Resolved problems from this section may be found in Solved problems.

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