Jan Volec

activity

20092026

most citedMinimum number of monotone subsequences of length 4 in permutations

35 citations · 160 across the 27 of their papers we have counts for

collaborators

Showing 2021Show all

2 papers · 1 filter

math.CO2021

The codegree threshold of $K_{4}^{-}$

Victor Falgas-Ravry, Oleg Pikhurko, Emil R. Vaughan +1

The codegree threshold $ex_{2} (n, F)$ of a $3$ -graph $F$ is the minimum $d = d (n)$ such that every $3$ -graph on $n$ vertices in which every pair of vertices is contained in at…

math.CO2021

Degree conditions forcing directed cycles

Andrzej Grzesik, Jan Volec

Caccetta-Häggkvist conjecture is a longstanding open problem on degree conditions that force an oriented graph to contain a directed cycle of a bounded length. Motivated by this co…

The codegree threshold of K4−​

Degree conditions forcing directed cycles

The codegree threshold of $K_{4}^{-}$