Contractible Hamiltonian Cycles in Triangulated Surfaces - Ashish Kumar Upadhyay (CoRR, 2010)

Contractible Hamiltonian cycles in Polyhedral Maps. - Dipendu Maity; Ashish Kumar Upadhyay (Discret. Math. Algorithms Appl., 2012)

A note on edge-disjoint contractible Hamiltonian cycles in polyhedral maps. - Ashish Kumar Upadhyay; Dipendu Maity (Electron. J. Graph Theory Appl., 2014)

On the enumeration of a class of toroidal graphs. - Ashish Kumar Upadhyay; Dipendu Maity (Contributions Discret. Math., 2018)

A study of constacyclic codes over the ring ℤ4[u]/〈u2 - 3〉. - Tushar Bag; Habibul Islam; Om Prakash 004; Ashish Kumar Upadhyay (Discret. Math. Algorithms Appl., 2018)

Quantum codes from ((1-2u_1-2u_2- cdots -2u_m) ) -skew constacyclic codes over the ring (F_q+u_1F_{q}+ cdots +u_{2m}F_{q} ). - Tushar Bag; Mohammad Ashraf; Ghulam Mohammad; Ashish Kumar Upadhyay (Quantum Inf. Process., 2019)

Quantum Codes Obtained From Constacyclic Codes Over a Family of Finite Rings Fp[u₁, u₂, ..., us]. - Hai Q. Dinh 001; Tushar Bag; Sachin Pathak; Ashish Kumar Upadhyay; Warattaya Chinnakum (IEEE Access, 2020)

On the Structure of Cyclic Codes Over 𝔽qRS and Applications in Quantum and LCD Codes Constructions. - Hai Q. Dinh 001; Tushar Bag; Ashish Kumar Upadhyay; Ramakrishna Bandi; Warattaya Chinnakum (IEEE Access, 2020)

A Study of FqR-Cyclic Codes and Their Applications in Constructing Quantum Codes. - Hai Q. Dinh 001; Sachin Pathak; Tushar Bag; Ashish Kumar Upadhyay; Warattaya Chinnakum (IEEE Access, 2020)

Corrigendum to "On the enumeration of a class of toroidal graphs" [Contrib. Discrete Math. 13 (2018), no. 1, 79-119]. - Dipendu Maity; Ashish Kumar Upadhyay (Contributions Discret. Math., 2020)

New Classes of Quantum Codes Associated with Surface Maps. - Debashis Bhowmik; Dipendu Maity; Bhanu Pratap Yadav; Ashish Kumar Upadhyay (CoRR, 2020)

Quantum codes from skew constacyclic codes over the ring Fq[u, v]∕〈u2-1, v2-1, uv-vu〉. - Tushar Bag; Hai Q. Dinh 001; Ashish Kumar Upadhyay; Ramakrishna Bandi; Woraphon Yamaka (Discret. Math., 2020)

New Non-Binary Quantum Codes from Cyclic Codes Over Product Rings. - Tushar Bag; Hai Q. Dinh 001; Ashish Kumar Upadhyay; Woraphon Yamaka (IEEE Commun. Lett., 2020)

A New Class of Quantum Codes Associate with a Class of Maps. - Debashis Bhowmik; Dipendu Maity; Ashish Kumar Upadhyay (ICMC, 2021)

Direct Construction of Optimal Z-Complementary Code Sets for all Possible Even Length by Using Pseudo-Boolean Functions. - Gobinda Ghosh; Sudhan Majhi; Palash Sarkar 002; Ashish Kumar Upadhyay (CoRR, 2021)

A Direct Construction of Prime-Power-Length Zero-Correlation Zone Sequences for QS-CDMA System. - Nishant Kumar 008; Sudhan Majhi; Palash Sarkar 002; Ashish Kumar Upadhyay (CoRR, 2021)

A class of skew cyclic codes and application in quantum codes construction. - Hai Q. Dinh 001; Tushar Bag; Ashish Kumar Upadhyay; Ramakrishna Bandi; Roengchai Tansuchat (Discret. Math., 2021)

On F2RS-cyclic codes and their applications in constructing optimal codes. - Hai Q. Dinh 001; Sachin Pathak; Tushar Bag; Ashish Kumar Upadhyay; Ramakrishna Bandi; Woraphon Yamaka (Discret. Math., 2021)

Constacyclic codes over mixed alphabets and their applications in constructing new quantum codes. - Hai Q. Dinh 001; Sachin Pathak; Tushar Bag; Ashish Kumar Upadhyay; Woraphon Yamaka (Quantum Inf. Process., 2021)

Constacyclic codes of length $$(p^r,p^s)$$ over mixed alphabets. - Hai Q. Dinh 001; Tushar Bag; Pramod Kumar Kewat; Sachin Pathak; Ashish Kumar Upadhyay; Warattaya Chinnakum (J. Appl. Math. Comput., 2021)

On ZprZprZps-Additive Cyclic Codes. - Cristina Fernández-Córdoba; Sachin Pathak; Ashish Kumar Upadhyay (CoRR, 2022)

A Direct Construction of 2D-CCC with Arbitrary Array Size and Flexible Set Size Using Multivariable Function. - Gobinda Ghosh; Sudhan Majhi; Ashish Kumar Upadhyay (CoRR, 2022)

Direct Construction of Optimal Z-Complementary Code Sets With Even Lengths by Using Generalized Boolean Functions. - Gobinda Ghosh; Sudhan Majhi; Palash Sarkar 002; Ashish Kumar Upadhyay (IEEE Signal Process. Lett., 2022)

Constacyclic codes over $${ pmb { mathbb {F}}}_{q^2}[u]/ langle u^2-w^2 rangle $$ and their application in quantum code construction. - Tushar Bag; Hai Q. Dinh 001; Kanat Abdukhalikov; Ashish Kumar Upadhyay; Woraphon Yamaka (J. Appl. Math. Comput., 2022)

Self-Dual Double Circulant, Self-Dual Double Negacirculant and LCD Double Negacirculant Codes Over the Ring Fq[u,v]/2 - u, v2-v, uv-vu>. - Hai Q. Dinh 001; Bhanu Pratap Yadav; Bac Trong Nguyen; Ashish Kumar Upadhyay; Woraphon Yamaka (IEEE Access, 2023)

On a class of skew constacyclic codes over mixed alphabets and applications in constructing optimal and quantum codes. - Hai Q. Dinh 001; Tushar Bag; Kanat Abdukhalikov; Sachin Pathak; Ashish Kumar Upadhyay; Ramakrishna Bandi; Warattaya Chinnakum (Cryptogr. Commun., 2023)

A Direct Construction of Near-Optimal Multiple ZCZ Sequence Sets. - Nishant Kumar 008; Sudhan Majhi; Ashish Kumar Upadhyay (CoRR, 2023)

$${ mathbb {F}}_{2}[u]{ mathbb {F}}_{2}[u] $$-additive cyclic codes are asymptotically good. - Hai Q. Dinh 001; Bhanu Pratap Yadav; Sachin Pathak; Abhyendra Prasad; Ashish Kumar Upadhyay; Woraphon Yamaka (J. Appl. Math. Comput., 2023)

Self-dual and LCD double circulant and double negacirculant codes over a family of finite rings $ mathbb {F}_{q}[v_{1}, v_{2}, dots ,v_{t}]$. - Hai Q. Dinh 001; Bhanu Pratap Yadav; Tushar Bag; Daniel Panario; Ashish Kumar Upadhyay (Cryptogr. Commun., 2023)

Reciprocal degree distance and Hamiltonian properties of graphs. - Rajkaran Kori; Abhyendra Prasad; Ashish Kumar Upadhyay (Oper. Res. Lett., 2023)

A study of QECCs and EAQECCs construction from cyclic codes over the ring ${ mathbb {F}}_q+v_1{ mathbb {F}}_q+v_2{ mathbb {F}}_q+ cdots +v_s{ mathbb {F}}_q$. - Om Prakash Pandey; Sachin Pathak; Awadhesh Kumar Shukla; Vipul Mishra; Ashish Kumar Upadhyay (Quantum Inf. Process., 2024)

A direct construction of complete complementary code with zero correlation zone property for prime-power length. - Nishant Kumar 008; Sudhan Majhi; Ashish Kumar Upadhyay (Cryptogr. Commun., 2024)

ℤ4ℤ4ℤ4-additive cyclic codes are asymptotically good. - Hai Q. Dinh 001; Bhanu Pratap Yadav; Sachin Pathak; Abhyendra Prasad; Ashish Kumar Upadhyay; Woraphon Yamaka (Appl. Algebra Eng. Commun. Comput., 2024)

F2F2[u2]F2[u3]-additive cyclic codes are asymptotically good. - Hai Q. Dinh 001; Bhanu Pratap Yadav; Bac Trong Nguyen; Ashish Kumar Upadhyay (Discret. Math., 2025)

On (θ , Θ )-cyclic codes and their applications in constructing QECCs. - Awadhesh Kumar Shukla; Sachin Pathak; Om Prakash Pandey; Vipul Mishra; Ashish Kumar Upadhyay (Quantum Inf. Process., 2025)