Henryk A. Witek

According to our database, Henryk A. Witek authored at least 12 papers between 2002 and 2021.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2021

Enumeration of Clar covers of parallelogram chains.

Bing-Hau He, Henryk A. Witek

Discret. Appl. Math., 2021

Extended strict order polynomial of a poset and fixed elements of linear extensions.

Johanna Langner, Henryk A. Witek

Australas. J Comb., 2021

2020

Clar Covers of Overlapping Benzenoids: Case of Two Identically-Oriented Parallelograms.

Henryk A. Witek, Johanna Langner

Symmetry, 2020

ZZ Polynomials for Isomers of (5, 6)-Fullerenes Cn with n = 20-50.

Henryk A. Witek, Jin-Su Kang

Symmetry, 2020

Zhang-Zhang Polynomials of Ribbons.

Bing-Hau He, Chien-Pin Chou, Johanna Langner, Henryk A. Witek

Symmetry, 2020

2018

Equivalence between Clar covering polynomials of single zigzag chains and tiling polynomials of 2×n rectangles.

Johanna Langner, Henryk A. Witek

Discret. Appl. Math., 2018

2016

Closed-form formulas for the Zhang-Zhang polynomials of benzenoid structures: Prolate rectangles and their generalizations.

Chien-Pin Chou, Jin-Su Kang, Henryk A. Witek

Discret. Appl. Math., 2016

2009

Intruder states in multireference perturbation theory: The ground state of manganese dimer.

Cristopher Camacho, Henryk A. Witek, Shigeyoshi Yamamoto

J. Comput. Chem., 2009

2004

Systematic study of vibrational frequencies calculated with the self-consistent charge density functional tight-binding method.

Henryk A. Witek, Keiji Morokuma

J. Comput. Chem., 2004

The Genetic Algorithms Population Pluglet for the H2O Metacomputing System.

Tomasz Ampula, Dawid Kurzyniec, Vaidy S. Sunderam, Henryk A. Witek

Proceedings of the Computational Science, 2004

2003

Multireference perturbation theory with optimized partitioning. II. Applications to molecular systems.

Henryk A. Witek, Haruyuki Nakano, Kimihiko Hirao

J. Comput. Chem., 2003

2002

Intruder state avoidance multireference Møller-Plesset perturbation theory.

Henryk A. Witek, Yoong-Kee Choe, James P. Finley, Kimihiko Hirao

J. Comput. Chem., 2002