Soubhik Biswas

Nabla related problems [23.06.21]

Laplacian operator and types of fileds [23.06.21]

Fourier Dirichlet type problem solving (recognising when the function is Even or Odd) [20.06.21].

Problem 2 related to Fourier Dirichlet Theorem [20.06.21].

Problem 1 of Fourier Dirichlet Theorem [20.06.21].

Z_n is a field iff n is a prime number [15.07.21].

Tips to prove char(F)...0 or p & another theorem [15.07.21].

After the definition of Gradient, there's a theorem with 1 problem and some definitions.[23.06.21].

Definition of Curl of a vector [23.06.21].

Examples of some ring, Theorems & definition of divisors of zero with suitable examples [24.06.21].

Matrix of LT with a similar problem and introduction to Ring Theory [24.06.21].

A problem of showing LT & finding the matrix of this transformation using ordered basis [24.06.21].

Fourier series expansion on the closed interval [27.06.21]

Fourier series expansion on [0, 2π].

All about 'fields' and its theorems [15.07.21].

The characteristics of a field is either zero or a prime number [15.07.21].

A proof involving nabla (2nd part was not done here) [30.06.21]

Vector Calculus problems 4, 5 solution [14.07.21].

Vector Calculus problems 1, 2, 3 solution [14.07.21].

Vector Calculus problem 4 and 5 solutions [14.07.21]

Dirichlet's conditions (after the proof of Parseval's Identity) [13.06.21]

Parseval's Identity with its proof (13.06.21)

Proof of Bessel's Inequality (contd.) [13.06.21]

Bessel's Inequality (completion of proof) [13.06.21]

Proof of Bessel's Inequality (contd.) [13.06.21]

Bessel's Inequality (13.06.21)

Definition of Fourier series with Fourier coefficients a_0, a_n, b_n (13.06.21)

Periodic function definition and example (13.06.21)

Multiple Integral region selection (12.05.21)

Nabla formulas 6,7,8 had proven and important problems solution (30.06.21).