A modified Dai–Liao conjugate gradient method for solving unconstrained optimization and image restoration problems Junyu LuGonglin YuanZhan Wang Original Research 09 April 2021 Pages: 681 - 703
Outer independent signed double Roman domination H. Abdollahzadeh AhangarF. Nahani PourS. M. Sheikholeslami Original Research 10 April 2021 Pages: 705 - 720
Local conditions for planar graphs of acyclic edge coloring Wenwen Zhang Original Research 12 April 2021 Pages: 721 - 738
An inverse source problem for pseudo-parabolic equation with Caputo derivative Le Dinh LongNguyen Hoang LucNguyen Huu Can Original Research 13 April 2021 Pages: 739 - 765
Uniform persistence and multistability in a two-predator–one-prey system with inter-specific and intra-specific competition Yuhua LongLin WangJia Li Original Research 13 April 2021 Pages: 767 - 794
Complexity to order: impact of antipedator behaviour on chaotic and non-chaotic intraguild predation model Ashutosh MauryaAnupam Priyadarshi Original Research 13 April 2021 Pages: 795 - 812
Dynamical behavior of a stochastic SIQS epidemic model on scale-free networks Rundong ZhaoQiming LiuMeici Sun Original Research 14 April 2021 Pages: 813 - 838
Balanced harvesting in two predators one prey system Debabrata DasDebprasad PalKripasindhu Chaudhuri Original Research 16 April 2021 Pages: 839 - 861
On a three-step iteration process for multivalued Reich-Suzuki type \(\alpha \)-nonexpansive and contractive mappings Samet MaldarFaik GürsoyMujahid Abbas Original Research 16 April 2021 Pages: 863 - 883
Stationary distribution and extinction of a multi-stage HIV model with nonlinear stochastic perturbation Chun LuGuanzhen SunYanmin Zhang Original Research 19 April 2021 Pages: 885 - 907
An interpolation-based method for solving Volterra integral equations Nasibeh KaramollahiMohammad HeydariGhasem Barid Loghmani Original Research 19 April 2021 Pages: 909 - 940
Existence of extremal solutions for a fractional compartment model Huiling ChenYujun Cui Original Research 24 April 2021 Pages: 941 - 951
Convergence analysis of two-step inertial Douglas-Rachford algorithm and application Avinash DixitD. R. SahuT. Som Original Research 26 April 2021 Pages: 953 - 977
Two delayed commensalism models with noise coupling and interval biological parameters Qian JiangZhijun LiuLianwen Wang Original Research 27 April 2021 Pages: 979 - 1011
Single-machine due-date assignment scheduling with generalized earliness-tardiness penalties including proportional setup times Wanlei Wang Original Research 28 April 2021 Pages: 1013 - 1031
The energy of some tree dendrimers Syed Ahtsham Ul Haq BokharyHafsah Tabassum Original Research 02 May 2021 Pages: 1033 - 1045
Solution of nonlinear boundary value problem by S-iteration S. ThenmozhiM. Marudai Original Research 08 May 2021 Pages: 1047 - 1068
An efficient numerical method for a nonlinear system of singularly perturbed differential equations arising in a two-time scale system Manikandan MariappanAyyadurai Tamilselvan Original Research 20 May 2021 Pages: 1069 - 1086
On the existence of the solution of Hammerstein integral equations and fractional differential equations Mudasir YounisDeepak Singh Original Research 22 May 2021 Pages: 1087 - 1105
Uncertainty observer and stabilization for transportation network with constraints Mohamad SleimanRachid BouyekhfAbdellah El Moudni Original Research 26 May 2021 Pages: 1107 - 1133
Global optimization of multivariable functions satisfying the Vanderbei condition N. K. ArutyunovaA. M. DullievV. I. Zabotin Original Research 26 May 2021 Pages: 1135 - 1161
A higher-order hybrid finite difference method based on grid equidistribution for fourth-order singularly perturbed differential equations Aastha GuptaAditya Kaushik Original Research 27 May 2021 Pages: 1163 - 1191
Hamilton-connectivity of line graphs with application to their detour index Yubin ZhongSakander HayatAsad Khan Original Research 02 June 2021 Pages: 1193 - 1226
Several classes of asymptotically good quasi-twisted codes with a low index Hongwei ZhuMinjia Shi Expository Survey 04 June 2021 Pages: 1227 - 1244
Layer resolving fitted mesh method for parabolic convection-diffusion problems with a variable diffusion Charles K. MbayiJustin B. MunyakaziKailash C. Patidar Original Research 05 June 2021 Pages: 1245 - 1270
Graph invariants of the line graph of zero divisor graph of \(\mathbb {Z}_{n}\) Pradeep SinghVijay Kumar Bhat Original Research 06 June 2021 Pages: 1271 - 1287
A new numerical method for solving semilinear fractional differential equation Yufen WeiYing GuoYu Li Original Research 08 June 2021 Pages: 1289 - 1311
Dynamics in a diffusive plankton system with time delay and Tissiet functional response Haicheng LiuBin GeQiyuan Liang Original Research 09 June 2021 Pages: 1313 - 1334
Solving the Cauchy problem for the Helmholtz equation using cubic smoothing splines Mary NanfukaFredrik BerntssonJohn Mango Original Research Open access 11 June 2021 Pages: 1335 - 1350
Higher order computational method for a singularly perturbed nonlinear system of differential equations Manikandan MariappanAyyadurai Tamilselvan Original Research 11 June 2021 Pages: 1351 - 1363
A new wide-neighborhood predictor-corrector interior-point method for semidefinite optimization Behrouz KheirfamNaser Osmanpour Original Research 11 June 2021 Pages: 1365 - 1385
Viscosity-type inertial extragradient algorithms for solving variational inequality problems and fixed point problems Bing TanZheng ZhouSongxiao Li Original Research 12 June 2021 Pages: 1387 - 1411
A generalization of multi-twisted codes over finite fields, their Galois duals and Type II codes Varsha ChauhanAnuradha Sharma Original Research 14 June 2021 Pages: 1413 - 1447
Exponentially-fitted and trigonometrically-fitted implicit RKN methods for solving \(y''=f(t,y)\) Wenjuan ZhaiShuhuan FuChun Xiu Original Research 14 June 2021 Pages: 1449 - 1466
A minimal search method for solving fractional integro-differential equations based on modified Legendre multiwavelets Longbin WuZhong ChenXiaohua Ding Original Research 15 June 2021 Pages: 1467 - 1483
