Results 61 to 70 of about 99 (75)

Two-sided permutation statistics via symmetric functions

Forum of Mathematics, Sigma
Given a permutation statistic $\operatorname {\mathrm {st}}$ , define its inverse statistic $\operatorname {\mathrm {ist}}$ by . We give a general approach, based on the theory of symmetric functions, for finding the joint distribution of
Ira M. Gessel, Yan Zhuang
doaj   +1 more source

Pattern Avoidance in Weak Ascent Sequences [PDF]

Discrete Mathematics & Theoretical Computer Science
In this paper, we study pattern avoidance in weak ascent sequences, giving some results for patterns of length 3. This is an analogous study to one given by Duncan and Steingr\'imsson (2011) for ascent sequences. More precisely, we provide systematically
Beáta Bényi, Toufik Mansour, José L. Ramírez   +2 more
doaj   +1 more source

Interval and $\ell$-interval Rational Parking Functions [PDF]

Discrete Mathematics & Theoretical Computer Science
Interval parking functions are a generalization of parking functions in which cars have an interval preference for their parking. We generalize this definition to parking functions with $n$ cars and $m\geq n$ parking spots, which we call interval ...
Tomás Aguilar-Fraga, Jennifer Elder, Rebecca E. Garcia, Kimberly P. Hadaway, Pamela E. Harris, Kimberly J. Harry, Imhotep B. Hogan, Jakeyl Johnson, Jan Kretschmann, Kobe Lawson-Chavanu, J. Carlos Martínez Mori, Casandra D. Monroe, Daniel Quiñonez, Dirk Tolson III, Dwight Anderson Williams II   +14 more
doaj   +1 more source

Alternating sign matrices with reflective symmetry and plane partitions: $n+3$ pairs of equivalent statistics and a Cauchy-type identity

Forum of Mathematics, Sigma
Vertically symmetric alternating sign matrices (VSASMs) of order $2n+1$ are known to be equinumerous with lozenge tilings of a hexagon with side lengths $2n+2,2n,2n+2,2n,2n+2,2n$ and a central triangular hole of size $2$ that exhibit
Ilse Fischer, Hans Höngesberg
doaj   +1 more source

Finite automata, probabilistic method, and occurrence enumeration of a pattern in words and permutations. [PDF]

SIAM J Discret Math, 2020
Mansour T, Rastegar R, Roitershtein A.
europepmc   +1 more source

Distribution and asymptotic behavior of the phylogenetic transfer distance. [PDF]

J Math Biol, 2019
Dávila Felipe M, Domelevo Entfellner JB, Lemoine F, Truszkowski J, Gascuel O.   +4 more
europepmc   +1 more source

Blocks in cycles and k-commuting permutations. [PDF]

Springerplus, 2016
Moreno R, Rivera LM.
europepmc   +1 more source

Modeling the evolution space of breakage fusion bridge cycles with a stochastic folding process. [PDF]

J Math Biol, 2016
Greenman CD, Cooke SL, Marshall J, Stratton MR, Campbell PJ.   +4 more
europepmc   +1 more source

Molecular Analysis of Rising Fluoroquinolone Resistance in Belgian Non-Invasive Streptococcus pneumoniae Isolates (1995-2014). [PDF]

PLoS One, 2016
Ceyssens PJ, Van Bambeke F, Mattheus W, Bertrand S, Fux F, Van Bossuyt E, Damée S, Nyssen HJ, De Craeye S, Verhaegen J, Belgian Streptococcus pneumoniae Study Group, Tulkens PM, Vanhoof R.   +12 more
europepmc   +1 more source

Genetic snapshots of the Rhizobium species NGR234 genome. [PDF]

Genome Biol, 2000
Viprey V, Rosenthal A, Broughton WJ, Perret X.   +3 more
europepmc   +1 more source