Papers in Journals
- 1. رضا کهکشانی،دو برهان از آذرخور اشتاذ گشنسپ،ریاضی و جامعه،شماره صفحات ۱-۵،۲۰۲۴ ۰۸ ۰۶.
- 2. رضا کهکشانی,Some Codes and Designs invariant under the groups $S_7$ and $S_8$,Journal of Mahani Mathematical Research,Vol. 13,pp. 511,2023 10 25,ISC.
- 3. R. Kahkeshani,1-Designs Constructed from the Groups $PSL_2(81)$ and $PSL_2(89)$,Journal of Mahani Mathematical Research,2022 01 22.
- 4. M. R. Darafsheh, R. Kahkeshani,Ternary codes from primitive representations of the group $PSL_2(9)$ and a new 2-(15,7,36) design,Journal of the Indian Mathematical Society,2022 01 01.
- 5. R. Kahkeshani،On the generating function and minimum free distance for a class of convolutional codes،Karafan،۲۰۲۱ ۰۹ ۰۳.
- 6. R. Kahkeshani,Quaternary codes and a class of 2-designs invariant under the group $A_8$,Algebraic structures and their applications,2021 08 22.
- 7. R. Kahkeshani,On the Entropy Rate of a Random Walk on $t$-Designs,Mathematics Interdisciplinary Research,2020 08 22.
- 8. R. Kahkeshani,On some designs constructed from the groups $PSL_2(q)$, $q=53,61,64$,Algebraic Structures and Their Applications,pp. 59-67,2020 01 08.
- 9. M. Yazdani , Moghaddam , R. Kahkeshani,On the Permutation Code of the Group $V_{8n}$ and Its Parameters,Indian J. Math.,Vol. 61,pp. 161-174,2019 08 01.
- 10. R, Kahkeshani,1-Designs from the group $PSL_{2}(59)$ and their automorphism groups,Math. Interdisc. Res.,Vol. 3,pp. 147-158,2018 03 29.
- 11. R. Kahkeshani ,& M. Arab,A generalized Binet formula that counts the tilings of a $(2\times n)$-board,INTEGERS,2018.
- 12. R. Kahkeshani,The Tilings of a $(2\times n)$-Board and Some New Combinatorial Identities,Journal of Integer Sequences,2017.
- 13. Kahkeshani و R. Kazemi،(The translation of ``X. Wang, Volumes of Generalized Unit Balls, Math. Magazine, Vol. ۷۸, No. ۵, ۳۹۰-۳۹۵ (۲۰۰۵،فرهنگ و اندیشه ریاضی،۲۰۱۷.
- 14. M. Yazdani , Moghaddam , R. Kahkeshani,The remoteness of the permutation code $U_{6n}$,Algebraic Structures and Their Applications,2016.
- 15. A. Zaghiyan , A. Majlesi , R. Kahkeshani , H. Shabani,Binary codes from the group $PSU_2(16)$,U. P. B. Sci. Bull. Ser. A,2014.
- 16. R. Kahkeshani , H. Shabani , A. Zaghiyan , A. Majlesi,The projective special unitary group $PSU_2(16)$ and their codes,Electronic Notes in Discrete Mathematics,2014 01 15.
- 17. H. Shabani ,& R. Kahkeshani,On the first Zagreb index of polygraphs,Electronic Notes in Discrete Mathematics,2014 01 15.
- 18. R. Kahkeshani,A Generalization of the Catalan Numbers,Journal of Integer Sequences,2013.
- 19. E. Lashani , A. Iranmanesh , R. Kahkeshani , O. Khormali,The Graphs $G$ that both $G$ and $L(G)$ contain 1-perfect codes,Int. Math. Forum,2012.
- 20. R. Kahkeshani. , R. Darafsheh , A. Iranmanesh,$(Self-dual designs and their binary codes obtained from the group $PSL_2(13,Creative Mathematics and Informatics,2009.
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