Main Subjects = Enumerative combinatorics
Number of Articles: 12
Combinations without specified separations

Articles in Press, Accepted Manuscript, Available Online from 08 September 2024

10.22049/cco.2024.29370.1959

Michael A Allen

On norms, spread, characteristic polynomial and determinant of Hankel and Toeplitz matrices with Mersenne sequence

Articles in Press, Accepted Manuscript, Available Online from 28 December 2024

10.22049/cco.2024.30037.2287

Kalika Prasad; Munesh Kumari; Jagmohan Tanti

2-semi equivelar maps on the torus and the Klein bottle with few vertices

Volume 10, Issue 4, December 2025, Pages 877-904

10.22049/cco.2024.29269.1919

Anand Kumar Tiwari; Yogendra Singh; Amit Tripathi

A modified public key cryptography based on generalized Lucas matrices

Volume 10, Issue 3, September 2025, Pages 665-679

10.22049/cco.2024.28022.1419

Kalika Prasad; Munesh Kumari; Hrishikesh Mahato

Some properties and identities of hyperbolic generalized k-Horadam quaternions and octonions

Volume 9, Issue 4, December 2024, Pages 707-724

10.22049/cco.2023.28272.1495

Kalika Prasad; Munesh Kumari; Can Kızılateş

On the anti-forcing number of graph powers

Volume 9, Issue 3, September 2024, Pages 497-507

10.22049/cco.2023.27874.1378

Neda Soltani; Saeid Alikhani

Some new families of generalized $k$-Leonardo and Gaussian Leonardo Numbers

Volume 9, Issue 3, September 2024, Pages 539-553

10.22049/cco.2023.28236.1485

Kalika Prasad; Ritanjali Mohanty; Munesh Kumari; Hrishikesh Mahato

On several new closed-form evaluations for the generalized hypergeometric functions

Volume 8, Issue 4, December 2023, Pages 737-749

10.22049/cco.2022.27794.1355

B. R. Srivatsa Kumar; Dongkyu Lim; Arjun K. Rathie

Enumeration of k-noncrossing trees and forests

Volume 7, Issue 2, December 2022, Pages 301-311

10.22049/cco.2022.26903.1162

Isaac Owino Okoth

Stirling number of the fourth kind and lucky partitions of a finite set

Volume 6, Issue 2, December 2021, Pages 211-219

10.22049/cco.2020.26895.1158

Johan Kok; Joseph Varghese Kureethara

Communications in Combinatorics and Optimization

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