1. The direct scattering problem for penetrable obstacles included in a cavity

   • Xianghe Zhu
   • Chaoquan Peng
   • Jun Guo

   Original Research 05 July 2021 Pages: 313 - 322

2. A partial ordering approach to characterize properties of a pair of orthogonal projectors

   • Oskar Maria Baksalary
   • Götz Trenkler

   Original Research 08 July 2021 Pages: 323 - 334

3. Compact gradient \(\rho\)-Einstein soliton is isometric to the Euclidean sphere

   • Absos Ali Shaikh
   • Chandan Kumar Mondal
   • Prosenjit Mandal

   Original Research 05 July 2021 Pages: 335 - 339

4. Cut vertices in comaximal graph of a commutative Artinian ring

   • Kyuoomars Esmaili
   • Karim Samei

   Original Research 12 July 2021 Pages: 340 - 343

5. Infinite-delayed stochastic impulsive differential systems with Poisson jumps

   • Surendra Kumar
   • Shobha Yadav

   Original Research 12 July 2021 Pages: 344 - 362

6. Near resonance for a Kirchhoff–Schrödinger–Newton system

   • Chun-Yu Lei
   • Gao-Sheng Liu

   Original Research 05 July 2021 Pages: 363 - 368

7. Hopficity and duo rings

   • Ulrich Albrecht
   • Francisco Javier Santillán-Covarrubias

   Original Research 12 July 2021 Pages: 369 - 374

8. The boundedness of commutators of sublinear operators on Herz Triebel-Lizorkin spaces

   • Chenglong Fang
   • Jiang Zhou

   Original Research 05 July 2021 Pages: 375 - 383

9. Dynamics of two families of meromorphic functions involving hyperbolic cosine function

   • Madhusudan Bera
   • M. Guru Prem Prasad

   Original Research 07 July 2021 Pages: 384 - 394

   

10. On the number of representations of integers by quaternary quadratic forms

    • Huixue Lao
    • Zhenxing Xie
    • Dan Wang

    Original Research 30 June 2021 Pages: 395 - 406

11. Numerical solution of the nonlinear conformable space–time fractional partial differential equations

    • H. Çerdik Yaslan

    Original Research 30 June 2021 Pages: 407 - 419

    

12. On generalization for Tribonacci Trigintaduonions

    • Kavita Saini
    • Kuldip Raj

    Original Research 18 June 2021 Pages: 420 - 428

13. On quasi-imperfect numbers with at most four distinct prime divisors

    • Cui-Fang Sun
    • Zhao-Cheng He
    • Tian-Tian Tao

    Original Research 14 June 2021 Pages: 429 - 438

14. On a generalisation of Local Uniform Rotundity

    • Uday Shankar Chakraborty

    Original Research 17 June 2021 Pages: 439 - 448

15. Endpoint estimates for commutators of Riesz transforms related to Schrödinger operators

    • Yanhui Wang
    • Yueshan Wang

    Original Research 14 June 2021 Pages: 449 - 458

16. The effect of a graft transformation on distance signless Laplacian spectral radius of the graphs

    • Dandan Fan
    • Guoping Wang

    Original Research 14 June 2021 Pages: 459 - 466

    

17. Some congruences for generalized harmonic numbers and binomial coefficients with roots of unity

    • Walid Kehila

    Original Research 10 June 2021 Pages: 467 - 478

18. A generalization of Ankeny and Rivlin’s result to \((s-1)^{st}\) derivative of a polynomial

    • V. K. Jain

    Original Research 17 June 2021 Pages: 479 - 485

19. On Ramanujan expansions with multiplicative coefficients

    • Maurizio Laporta

    Original Research 14 June 2021 Pages: 486 - 504

20. A mod k index theorem for signature operators

    • Adnane Elmrabty

    Original Research 02 June 2021 Pages: 505 - 511

21. The locally k-uniformly extremely convex and midpoint locally k-uniformly extremely convex Banach spaces

    • Suyalatu Wulede

    Original Research 17 June 2021 Pages: 512 - 520

22. Asymptotics of length frequencies for Coxeter groups

    • Abdullah Aljouiee
    • Youssef Lazar

    Original Research 28 June 2021 Pages: 521 - 528

    

23. Generalized weak demicompactness involving measure of non-strict-singularity

    • Imen Ferjani
    • Aref Jeribi
    • Bilel Krichen

    Original Research 14 June 2021 Pages: 529 - 541

24. Nash-Williams conditions for the existence of all fractional [a, b]-factors

    • Zhiren Sun
    • Sizhong Zhou

    Original Research 14 June 2021 Pages: 542 - 547

25. Distance between the spectra of certain graphs

    • Mohsen Alinezhad
    • Kazem Khashyarmanesh
    • Mojgan Afkhami

    Original Research 28 June 2021 Pages: 548 - 557

    

26. Packing three copies of a tree into its sixth power

    • Tarak Louleb
    • Mohamed Y. Sayar
    • Hamamache Kheddouci

    Original Research 30 June 2021 Pages: 558 - 570

    

27. On the number of connected subgraphs of graphs

    • Dinesh Pandey
    • Kamal Lochan Patra

    Original Research 14 June 2021 Pages: 571 - 583

    

28. Computing twisted Alexander polynomials for Montesinos links

    • Haimiao Chen

    Original Research 14 June 2021 Pages: 584 - 598

    

29. Combinatorial matrices derived from generalized Motzkin paths

    • Lin Yang
    • Sheng-Liang Yang

    Original Research 14 June 2021 Pages: 599 - 613

    

30. A new linesearch iterative scheme for finding a common solution of split equilibrium and fixed point problems

    • Thidaporn Seangwattana
    • Somyot Plubtieng
    • Kanokwan Sitthithakerngkiet

    Original Research 02 June 2021 Pages: 614 - 628