t | VLCM | JCM |
0.01 | 0.5387 | 0.5387 |
0.02 | 0.5757 | 0.5757 |
0.03 | 0.6111 | 0.6111 |
0.04 | 0.6450 | 0.6450 |
0.05 | 0.6774 | 0.6774 |
In this study for examining the fractional Michaelis-Menten enzymatic reaction (FMMER) model, we suggested a computational method by using an operational matrix of Jacobi polynomials (JPs) as its foundation. We obtain an operational matrix for the arbitrary order derivative in the Caputo sense. The fractional differential equations (FDEs) are then reduced to a set of algebraic equations by using attained operational matrix and the collocation method. The approach which utilized in this study is quicker and more effective compared to other schemes. We also compared the suggested method with the Vieta-Lukas collocation technique (VLCM) and we obtain excellent results. A comparison between numerical outcomes is shown by figures and tables. Error analysis of the recommended methods is also presented.
Citation: Devendra Kumar, Hunney Nama, Dumitru Baleanu. Computational analysis of fractional Michaelis-Menten enzymatic reaction model[J]. AIMS Mathematics, 2024, 9(1): 625-641. doi: 10.3934/math.2024033
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In this study for examining the fractional Michaelis-Menten enzymatic reaction (FMMER) model, we suggested a computational method by using an operational matrix of Jacobi polynomials (JPs) as its foundation. We obtain an operational matrix for the arbitrary order derivative in the Caputo sense. The fractional differential equations (FDEs) are then reduced to a set of algebraic equations by using attained operational matrix and the collocation method. The approach which utilized in this study is quicker and more effective compared to other schemes. We also compared the suggested method with the Vieta-Lukas collocation technique (VLCM) and we obtain excellent results. A comparison between numerical outcomes is shown by figures and tables. Error analysis of the recommended methods is also presented.
Fractional-order differential equations allow scientists to simulate a wide range of physical phenomena. To solve systems by creating precise models, arbitrary-order differential operators are frequently utilized [1,2,3,4]. Due of their property that is not local, the arbitrary-order operators are more effective at simulating the different issues in physics, fluid dynamics, and the associated fields [1,5,6,7,8,9].
To investigate the approximation of the Michaelis-Menten enzymatic reaction equation, Shateyi et al. [10] recommended a technique that is modification of the spectral homotopy analysis technique. To get the best design of several membrane reactors operating enzyme-catalyzed reactions in series, Abu-Reesh [11] deduced analytical equations. A precise closed-form resolution to the Michaelis-Menten equation using the terms of Lambert W(x) function was proposed by Golicnik [12]. Hussam et al. [13] utilized the Laplace transformation and Adomian decomposition method to examine the semianalytical outcomes of fractional time enzyme kinetics. Alqhtani et al. [14] suggested a scale conjugate neural network learning procedure for the non linear malaria illness concept. Numerous researchers have shown computational, estimate techniques and applications to address this issue because it can be challenging to find exact solutions to arbitrary order differential equations [15,16,17,18,19]. In actuality, aside from [20], no other techniques cope with computational solutions in the fractal-fractional sense. The authors of [21] examined a spectral approach in the context of fractal-fractional differentiation.
Alqhtani and Saad [22] examined the fractal-fractional michaelis-menten enzymatic reaction model using different kernels. Alsuyuti et al. [23] investigated the Galerkin operational technique for multi-dimension fractional differential equations. Spectral Galerkin schemes for a class of multi-order fractional pantograph equations was examined by Alsuyuti et al. [24]. Bhrawy et al. [25] studied an effective spectral collocation technique for a dual-sided spaces fractional Boussinesq equation having non-local circumstances. According to Michaelis and Menten, the enzyme-substrate complex quantity estimated by the Michaelis-Menten equations [26] is proportional to the rate of an enzyme-catalyzed process. [26] illustrates this model's dynamic version:
dεdt=−ωε(t)φ(t)+χϱ(t), | (1) |
dφdt=−ωε(t)φ(t)+(χ+β)ϱ(t), | (2) |
dϱdt=ωε(t)φ(t)−(χ+β)ϱ(t), | (3) |
dϑdt=βϱ(t). | (4) |
The substrate's concentration is represented by ε(t), and an enzyme's concentration is φ(t). The resulting complex's concentration is ϱ(t), and the resulting product's concentration is represented by ϑ(t). ω, χ and β represent the reaction rate regarding the complex's production from ε(t) and φ(t), the rate of reaction governing the complex's breakdown to φ(t) and φ(t), and the reaction rate governing the complex's breaking down into ϑ(t) and φ(t) respectively. Initial conditions are ε(0)=ε0, φ(0)=φ0, ϱ(0)=ϱ0 and ϑ(0)=ϑ0.
The schematic for this model is provided by
ε+φ⇌ϱ→φ+ϑ. |
This diagram shows that an enzyme φ and a substrate ε react to produce a complex ϱ. In the end, an enzyme ϑ and a product φ are produced from a complex ϱ [22].
In this article, we presented the computational solution of the FMMER model by Jacobi collocation method (JCM) and VLCM. It should be mentioned that the FMMER model is handled originally in this study using the collocation strategy. It is important to note that no have comparable works that apply this technique to issues regarding the FMMER model.
Here, we provide a summary of some definitions, characteristics, and outcomes related to fractional calculus, which is important for developing the computational technique used to resolve FDEs.
Definition 1. The definition of the Riemann-Liouville fractional integral operator of a function ψ of order ν>0 is
Jνψ(z)=1Γ(ν)∫z0(z−s)ν−1ψ(s)ds, ν>0,J0ψ(z)=ψ(z). |
Definition 2. The definition of fractional derivative in Caputo sense for order ν is
Dνψ(z)=1Γ(n−ν)∫z0ψ(n)(s)(z−s)ν+1−nds, ν>0, z>0, |
where n−1<ν≤n, n∈N and ψ∈Cn[0,1]. So, the Caputo operator follows
Dνzk={0,k∈0,1,2,⋯,⌈ν⌉−1,Γ(1+k)Γ(1+k−ν)zk−ν,k∈N∧k≥⌈ν⌉. |
To learn more about the definitions of fractional derivatives and their characteristics, see [27,28]. The derivatives d/dt are replaced in the dimensionless enzymatic reaction Eqs (1)–(4) by the fractional derivatives Dν, 0<ν≤1. Thus, we attain the fractional model is
Dνε(t)=−ωε(t)φ(t)+χϱ(t), | (5) |
Dνφ(t)=−ωε(t)φ(t)+(χ+β)ϱ(t), | (6) |
Dνϱ(t)=ωε(t)φ(t)−(χ+β)ϱ(t), | (7) |
Dνϑ(t)=βϱ(t). | (8) |
In this article, JPs have served as the foundation for approximating unknown functions. The shifted JPs is defined as [29,30,31]
j(p,q)r(z)=r∑w=0(−1)r−wΓ(r+q+1)Γ(r+w+p+q+1)Γ(w+q+1)Γ(r+p+q+1)(r−w)!w!zw, |
the JPs parameters, p and q, are as stated in [29].
The following are orthogonal properties of JPs:
∫10j(p,q)k(z)j(p,q)s(z)ω(p,q)(z)dz=λp,qkδks, |
δks is Kronecker delta function and ω(p,q)(z) is a weight function and presented as
ω(p,q)(z)=(1−z)pzq |
and
λp,qk=Γ(k+p+1)Γ(k+q+1)(2k+p+q+1)k!Γ(k+p+q+1). |
Theorem 1. Suppose that the shifted Jacobi vector is
Jk(z)=[j(p,q)0,j(p,q)1,⋯,j(p,q)k]T |
and ν>0. Then
Dνj(p,q)r(z)=D(ν)Jk(z), |
here D(ν)=(N(r,i)) is operational matrix of (k+1)×(k+1) order and ν denotes order of fractional derivative, whose entries are offered as
N(r,i,p,q)=r∑l=[ν](−1)r−lΓ(r+q+1)Γ(r+l+p+q+1)(r−l)!Γ(l+q+1)Γ(r+p+q+1)Γ(l−ν+1)×i∑e=0(−1)i−eΓ(p+1)Γ(i+e+p+q+1)Γ(l+e−ν+q+1)(2i+p+q+1)i!(i−e)!(e)!Γ(i+p+1)Γ(e+q+1)Γ(l+e−ν+p+q+2). |
Proof. [29,30,31] are available to view as evidence.
A function η∈L2f[0,1], with |η"(z)|≤A, can be expanded as
η(z)=limk→∞k∑r=0arj(p,q)r(z), η(z)=<ar,j(p,q)r(z)>, | (9) |
where the standard inner product space is indicated by the sign <.,.>.
For the estimation of finite dimensions, the composition of Eq (9) is as follows:
η≅m∑r=0arj(p,q)r(z)=ATJm(z), | (10) |
where A and Jm(z) are matrices of order (m+1)×1, presented as
A=[a0,a1,....,am]TandJm(z)=[j(p,q)0,j(p,q)1,⋯,j(p,q)m]T. | (11) |
Shifted VLPs on [0, 1], in analytical form, can be written as [32]
vr(z)=2rr∑j=0(−1)j4r−jΓ(2r−j)Γ(j+1)Γ(2r−2j+1)zr−j, r={2,3,⋯} |
with v0(z)=2.
Theorem 1. Suppose that the shifted Vieta-Lukas vector is
Vk(z)=[v0,v1,...,vk]T |
and ν>0. Then,
Dνvr(z)=D(ν)Vk(z), |
here D(ν) is an operational matrix of order (k+1)×(k+1) and ν represents the order of the fractional derivative, the entries of which are provided in [32].
D(ν)=(00⋯0⋮⋮⋯⋮00⋯0∑i−⌈ν⌉m=0σi,0,m∑i−⌈ν⌉m=0σi,1,m⋯∑i−⌈ν⌉m=0σi,k,m⋮⋮⋯⋮∑k−⌈ν⌉m=0σk,0,m∑k−⌈ν⌉m=0σk,1,m⋯∑k−⌈ν⌉m=0σk,k,m) |
and σi,j,m is given by
σi,j,m={i∑i−⌈ν⌉m=0(−1)m4i−mΓ(2i−m)Γ(i−m+1)Γ(i−m−ν+1/2)√πΓ(m+1)Γ(2i−2m+1)Γ(i−m−ν+1)2, j=0,2i∑i−⌈ν⌉m=0∑jr=0(−1)m+r√π4i−mΓ(2i−m)Γ(i−m+1)Γ(m+1)Γ(2i−2m+1)Γ(i−m−ν+1)×4j−rΓ(2j−r)Γ(i+j−m−r−ν+1/2)Γ(r+1)Γ(2j−2r+1)Γ(i+j+m−r−ν+1), j=1,2,3,⋯. |
Proof. See [32].
A function ρ∈L2f[0,1], with |ρ"(z)|≤A, can be expanded in this way:
ρ(z)=limk→∞k∑r=0brvr(z), | (12) |
where
br=1μrπ∫10ρ(z)vr(z)√z−z2dz, |
μ0=4 and μr=2 (r≥1).
Regarding estimate of finite dimensions, this is the composition of Eq (12):
ρ≅m∑r=0brvr(z)=CTVm(z), | (13) |
where shifted VLPs coefficient C and shifted VLP vector Vm(z) [matrices of order (m+1)×1] are
C=[b0,b1,⋯,bm]TandVm(z)=[v0,v1,⋯,vm]T. | (14) |
Here, we will review the algorithm that uses the operational matrix and collocation strategy [33,34,35] to generate the solution for the FDEs. We utilize the subsequent approximation:
π(t)=k∑r=0arj(p,q)r(t)=ATJk(t). | (15) |
Next, by taking the derivative of (15) at order one, we arrive at
D′π(t)=ATD′Jk(t)≅ATD(1)Jk(t), | (16) |
where D(1) is the operational differentiation matrix of order 1 for JPs.
Taking the order ν derivative of (15), we get
Dνπ(t)=ATDνJk(t)≅ATD(ν)Jr(t), | (17) |
where D(ν) is the operational differentiation matrix of order ν for JPs.
Eqations (15) and (16) allow us to write
π(0)=ATJk(0), | (18) |
π′(0)=ATD(1)Jk(0). | (19) |
Grouping Eqs (5), (15) and (17), we obtain
AT1D(ν)Jk(t)+ω(AT1Jk(t))(AT2Jk(t))−χ(AT3Jk(t))=0. | (20) |
Grouping Eqs (6), (15) and (17), we obtain
AT2D(ν)Jk(t)+ω(AT1Jk(t))(AT2Jk(t))−(χ+β)(AT3Jk(t))=0. | (21) |
Grouping Eqs (7), (15) and (17), we obtain
AT3D(ν)Jk(t)−ω(AT1Jk(t))(AT2Jk(t))+(χ+β)(AT3Jk(t))=0. | (22) |
Grouping Eqs (8), (15) and (17), we obtain
AT4D(ν)Jk(t)−β(AT3Jk(t))=0. | (23) |
The residual for Eqs (20)–(23) are given as follows:
R1k(t)=AT1D(ν)Jk(t)+ω(AT1Jk(t))(AT2Jk(t))−χ(AT3Jk(t)), | (24) |
R2k(t)=AT2D(ν)Jk(t)+ω(AT1Jk(t))(AT2Jk(t))−(χ+β)(AT3Jk(t)), | (25) |
R3k(t)=AT3D(ν)Jk(t)−ω(AT1Jk(t))(AT2Jk(t))+(χ+β)(AT3Jk(t)), | (26) |
R4k(t)=AT4D(ν)Jk(t)−β(AT3Jk(t)). | (27) |
Now, when Eqs (24)–(27) are collocated at k points
tr=rk, r=0,1,2,⋯,k−1, |
we obtain
R1k(tr)=AT1D(ν)Jk(tr)+ω(AT1Jk(tr))(AT2Jk(tr))−χ(AT3Jk(tr)), | (28) |
R2k(tr)=AT2D(ν)Jk(tr)+ω(AT1Jk(tr))(AT2Jk(tr))−(χ+β)(AT3Jk(tr)), | (29) |
R3k(tr)=AT3D(ν)Jk(tr)−ω(AT1Jk(tr))(AT2Jk(tr))+(χ+β)(AT3Jk(tr)), | (30) |
R4k(tr)=AT4D(ν)Jk(tr)−β(AT3Jk(tr)). | (31) |
Furthermore, from Eq (18), we can write
AT1Jk(0)−ε(0)=0, | (32) |
AT2Jk(0)−φ(0)=0, | (33) |
AT3Jk(0)−ϱ(0)=0, | (34) |
AT4Jk(0)−ϑ(0)=0. | (35) |
By using the collocation points in Eqs (28)–(31), along with Eqs (32)–(35), we are left with a non-linear system of equations that have the same amount of unknowns. The estimated solution of the FMMER model is obtained by solving this system.
Theorem 5.1. Define the function as π: [0,1]⟶R, π∈C(k+1)[0,1], where the kth estimate found using JPs is πk(z). Then,
Fhπ,k=||π−πk||L2h[0,1], | (36) |
and as k⟶∞, the error vector Fhπ,k⟶0.
Proof. For evidence, consult the relevant books [36,37], and the study article [38].
Theorem 5.2. The error vector for ν order operational matrix differentiation is Fν,hD,k, and it is computed utilizing (k+1) JPs. Then,
Fν,hD,k=D(ν)Jk(t)−DνJk(t), | (37) |
and as k⟶∞, Fν,hD,k⟶0.
Proof. [39,40] are available for viewing.
Theorem 5.3. Consider the functional Y. Then
limk→∞ζk(t)=ζ(t)=inft∈[0,1]Y(t). | (38) |
Proof. See [41]. For Eq (5), the functional Y is offered as
Y(t)=Dνtε(t)+ωε(t)φ(t)+χϱ(t). | (39) |
Using Eqs (15) and (17), we obtain
Y(F)(t)=AT1D(ν)Yk(t)+Fν,hD,k+ω(AT1Jk(t)+Fhπ,k)(AT2Jk(t)+Fhπ,k)−χ(AT3Jk(t)+Fhπ,k), | (40) |
where
Fhπ,k=ATJ(t)−ATJk(t), | (41) |
Fν,hD,k=D(ν)Jk(t)−DνJk(t). | (42) |
Residual for Eq (40) is
R(F)k(t)=AT1D(ν)Yk(t)+Fν,hD,k+ω(AT1Jk(t)+Fhπ,k)(AT2Jk(t)+Fhπ,k)−χ(AT3Jk(t)+Fhπ,k), | (43) |
when Eq (43) is collocated at k points
tr=rk, r=0,1,2,⋯,k−1, |
we obtain
R(F)k(tr)=AT1D(ν)Yk(tr)+Fν,hD,k+ω(AT1Jk(tr)+Fhπ,k)(AT2Yk(tr)+Fhπ,k)−χ(AT3Jk(tr)+Fhπ,k). | (44) |
Ultimately, Eqs (32) and (44) lead to a set of non-linear algebraic equations. We solve the system to find the value of the unknowns. Afterward, we move on to solving Eq (39). Let the achieved solution be represented by ζ∗k(t).
Now, applying the limit k⟶∞ and using Theorems 5.1 and 5.2, we get
ζ∗k(t)⟶ζk(t). | (45) |
From Eq (45) and Theorem 5.3, we get that
limk→∞ζk(t)=ζ(t). |
For FDEs (6)–(8), the same proof can be created.
Here, we will review the algorithm that uses the collocation approach and operational matrix to generate the fractional DE solution [32,33,34,35]. We utilize the subsequent approximation:
ψ(t)=k∑r=0brv(p,q)r(t)=CTVk(t). | (46) |
Next, by taking the derivative of (46) at order one, we arrive at
D′ψ(t)=CTD′Vk(t)≅CTD(1)Vk(t), | (47) |
here D(1) denotes the operational differentiation matrix of order 1 for VLPs.
Taking order ν derivative of (46), we get
Dνψ(t)=CTDνVk(t)≅CTD(ν)Vk(t), | (48) |
here D(ν) denotes the operational differentiation matrix of order ν for VLPs.
From Eqs (46) and (47), we can write
ψ(0)=CTVk(0), | (49) |
ψ′(0)=CTD(1)Vk(0). | (50) |
Grouping Eqs (5), (46) and (48), we obtain
CT1D(ν)Vk(t)+ω(CT1Vk(t))(CT2Vk(t))−χ(CT3Vk(t))=0. | (51) |
Grouping Eqs (6), (46) and (48), we obtain
CT2D(ν)Vk(t)+ω(CT1Vk(t))(CT2Vk(t))−(χ+β)(CT3Vk(t))=0. | (52) |
Grouping Eqs (7), (46) and (48), we obtain
CT3D(ν)Vk(t)−ω(CT1Vk(t))(CT2Vk(t))+(χ+β)(CT3Vk(t))=0. | (53) |
Grouping Eqs (8), (46) and (48), we obtain
CT4D(ν)Vk(t)−β(CT3Vk(t))=0. | (54) |
The residual for Eqs (51)–(54) are
R1k(t)=CT1D(ν)Vk(t)+ω(CT1Vk(t))(CT2Vk(t))−χ(CT3Vk(t)), | (55) |
R2k(t)=CT2D(ν)Vk(t)+ω(CT1Vk(t))(CT2Vk(t))−(χ+β)(CT3Vk(t)), | (56) |
R3k(t)=CT3D(ν)Vk(t)−ω(CT1Vk(t))(CT2Vk(t))+(χ+β)(CT3Vk(t)), | (57) |
R4k(t)=CT4D(ν)Vk(t)−β(CT3Vk(t)). | (58) |
Now, when Eqs (55)–(58) are collocated at k points
tr=rk, r=0,1,2,⋯,k−1, |
we obtain
R1k(tr)=CT1D(ν)Vk(tr)+ω(CT1Vk(tr))(CT2Vk(tr))−χ(CT3Vk(tr)), | (59) |
R2k(tr)=CT2D(ν)Vk(tr)+ω(CT1Vk(tr))(CT2Vk(tr))−(χ+β)(CT3Vk(tr)), | (60) |
R3k(tr)=CT3D(ν)Vk(tr)−ω(CT1Vk(tr))(CT2Vk(tr))+(χ+β)(CT3Vk(tr)), | (61) |
R4k(tr)=CT4D(ν)Vk(tr)−β(CT3Vk(tr)). | (62) |
Furthermore, from Eq (49), we get
CT1Vk(0)−ε(0)=0, | (63) |
CT2Vk(0)−φ(0)=0, | (64) |
CT3Vk(0)−ϱ(0)=0, | (65) |
CT4Vk(0)−ϑ(0)=0. | (66) |
By using the collocation points in Eqs (59)–(62) along with Eqs (63)–(66), we are left with a non-linear system of equations that have the same amount of unknowns. The FMMER model's estimated solution is obtained by solving this system.
Theorem 8.1. Define the function as ψ: [0,1]⟶R, ψ∈C(k+1)[0,1]. The kth estimate found using VLPs is ψk(z). Then,
Efψ,k=||ψ−ψk||L2f[0,1], | (67) |
and as k⟶∞, the error vector Efψ,k⟶0.
Proof. For evidence, consult the relevant books [36,37], and the study article [38].
Theorem 8.2. The error vector for ν order operational matrix differentiation is Eν,fD,k, and it is computed utilizing (k+1) VLPs. Then,
Eν,fD,k=D(ν)Vk(t)−DνVk(t), | (68) |
and as k⟶∞, Eν,fD,k⟶0.
Proof. [39,40] are available for viewing.
Theorem 8.3. Consider the functional U. Then
limk→∞γk(t)=γ(t)=inft∈[0,1]U(t). | (69) |
Proof. See [41]. For Eq (5), the functional U is:
U(t)=Dνtε(t)+ωε(t)φ(t)+χϱ(t). | (70) |
Using Eqs (46) and (48), we obtain
U(E)(t)=CT1D(ν)Uk(t)+Eν,fD,k+ω(CT1Vk(t)+Efψ,k)(CT2Vk(t)+Efψ,k)−χ(CT3Vk(t)+Efψ,k), | (71) |
where
Efψ,k=CTV(t)−CTVk(t), | (72) |
Eν,fD,k=D(ν)Vk(t)−DνVk(t). | (73) |
Residual, for Eq (71) is
R(E)k(t)=CT1D(ν)Uk(t)+Eν,fD,k+ω(CT1Vk(t)+Efψ,k)(CT2Vk(t)+Efψ,k)−χ(CT3Vk(t)+Efψ,k), | (74) |
when Eq (74) is collocated at k point
tr=rk, r=0,1,2,⋯,k−1, |
we obtain
R(E)k(tr)=CT1D(ν)Uk(tr)+Eν,fD,k+ω(CT1Vk(tr)+Efψ,k)(CT2Vk(tr)+Efψ,k)−χ(CT3Vk(tr)+Efψ,k). | (75) |
Ultimately, Eqs (63) and (75) lead to a set of non-linear algebraic equations. To determine the unknown values, we solve the system. Then we solve Eq (70). Let the achieved solution be represented by γ∗k(t).
Now, applying the limit k⟶∞ and using Theorems 8.1 and 8.2,
γ∗k(t)⟶γk(t). | (76) |
From Eq (76) and Theorem 8.3, we get
limk→∞γk(t)=γ(t). |
For FDEs (6)–(8), the same proof can be created.
Tables 1–4 compare the numerically calculated responses of ε(t), φ(t), ϱ(t) and ϑ(t) using the collocation technique based-on shifted JPs and the collocation technique based on shifted VLPs.
t | VLCM | JCM |
0.01 | 0.5387 | 0.5387 |
0.02 | 0.5757 | 0.5757 |
0.03 | 0.6111 | 0.6111 |
0.04 | 0.6450 | 0.6450 |
0.05 | 0.6774 | 0.6774 |
0.01 | 0.1584 | 0.1584 |
0.02 | 0.2146 | 0.2146 |
0.03 | 0.2687 | 0.2687 |
0.04 | 0.3207 | 0.3207 |
0.05 | 0.3708 | 0.3708 |
0.01 | 1.9416 | 1.9416 |
0.02 | 1.8854 | 1.8854 |
0.03 | 1.8313 | 1.8313 |
0.04 | 1.7793 | 1.7793 |
0.05 | 1.7292 | 1.7292 |
0.01 | 9.0197 | 9.0197 |
0.02 | 9.0389 | 9.0389 |
0.03 | 9.0576 | 9.0576 |
0.04 | 9.0757 | 9.0757 |
0.05 | 9.0934 | 9.0934 |
Numerical simulation and graphical results of the fractional order enzymatic reaction model are displayed in the Figures 1–4 which is obtained by JCM. Figures 1–4 present the behaviour of ε, φ, ϱ and ϑ, respectively, with time. ε(t) exhibits a tendency to rise with respect to time, and the rate of increase, decreases when fractional order rises from 0.8 to 1 (see Figure 1). φ(t) displays a tendency to increase with respect to time, and the rate of increase, decreases when fractional order is increased from 0.8 to 1 (see Figure 2). ϱ(t) demonstrates a tendency to decline over time, and rate of decrese, increases as fractional order rises from 0.8 to 1 (see Figure 3). ϑ(t) indicates a tendency to increase with respect to time, and the rate of increase, decreases as fractional order rises from 0.8 to 1 (see Figure 4). Figures 5 and 6 show the comparison between JCM and VLCM.
To evaluate the computational solutions of the FMMER model, two computational techniques have been discussed in the present article. In this work, we present a novel operational matrix for derivatives of arbitrary order for JPs and VLPs in the Caputo sense. A computer-based mathematical algorithm is created using an operational matrix to resolve the nonlinear FDEs that contain the Caputo arbitrary order derivative. The benefit of using the proposed mathematical technique is that it reduces the issues to a simple set of algebraic equations that is solvable using any type of computing device. Algebraic equations are solved in this research study using Newton's approach. To compute numerical results, we use Mathematica computer software. The numerical results show the recommended approach's accuracy, success and trustworthiness. We found that our approach leds to more effective outcomes. The computer solution of the FMMER model using a collocation approch shows that this technique can be applied to explain chemical difficulties that occur in chemistry. We can solve more complex fractional calculus problems using the collocation technique that arises in real words.
The authors declare they have not used Artificial Intelligence (AI) tools in the creation of this article.
The authors declare no conflicts of interest in this manuscript.
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t | VLCM | JCM |
0.01 | 0.5387 | 0.5387 |
0.02 | 0.5757 | 0.5757 |
0.03 | 0.6111 | 0.6111 |
0.04 | 0.6450 | 0.6450 |
0.05 | 0.6774 | 0.6774 |
0.01 | 0.1584 | 0.1584 |
0.02 | 0.2146 | 0.2146 |
0.03 | 0.2687 | 0.2687 |
0.04 | 0.3207 | 0.3207 |
0.05 | 0.3708 | 0.3708 |
0.01 | 1.9416 | 1.9416 |
0.02 | 1.8854 | 1.8854 |
0.03 | 1.8313 | 1.8313 |
0.04 | 1.7793 | 1.7793 |
0.05 | 1.7292 | 1.7292 |
0.01 | 9.0197 | 9.0197 |
0.02 | 9.0389 | 9.0389 |
0.03 | 9.0576 | 9.0576 |
0.04 | 9.0757 | 9.0757 |
0.05 | 9.0934 | 9.0934 |
t | VLCM | JCM |
0.01 | 0.5387 | 0.5387 |
0.02 | 0.5757 | 0.5757 |
0.03 | 0.6111 | 0.6111 |
0.04 | 0.6450 | 0.6450 |
0.05 | 0.6774 | 0.6774 |
0.01 | 0.1584 | 0.1584 |
0.02 | 0.2146 | 0.2146 |
0.03 | 0.2687 | 0.2687 |
0.04 | 0.3207 | 0.3207 |
0.05 | 0.3708 | 0.3708 |
0.01 | 1.9416 | 1.9416 |
0.02 | 1.8854 | 1.8854 |
0.03 | 1.8313 | 1.8313 |
0.04 | 1.7793 | 1.7793 |
0.05 | 1.7292 | 1.7292 |
0.01 | 9.0197 | 9.0197 |
0.02 | 9.0389 | 9.0389 |
0.03 | 9.0576 | 9.0576 |
0.04 | 9.0757 | 9.0757 |
0.05 | 9.0934 | 9.0934 |