B. Gombodorj

collaborators

3 papers

math-ph2026

Lie symmetry classification and invariant solutions of time-fractional telegraph systems with variable coefficients

Sodbaatar Adiya, Khongorzul Dorjgotov, Bayarmagnai Gombodorj +2

Time-fractional telegraph equations provide fundamental mathematical models for transport processes that exhibit memory and nonlocal effects in industrial and physical systems. The…

math-ph2026

On invariant solutions of linear time-fractional diffusion-wave equations with variable coefficients

Sodbaatar Adiya, Khongorzul Dorjgotov, Bayarmagnai Gombodorj +2

We study invariant solutions of a certain class of time-fractional diffusion-wave equations with variable coefficients via Lie symmetry analysis. In physics, the fractional diffusi…

math.NT2025

A quadratic form of $p = 3 k + 1$ primes

Bat-Od Battseren, Bayarmagnai Gombodorj

We use Zagier's one-sentence proof approach to show that a prime number $p$ admits a form $p = a^{2} + ab + b^{2}$ for some integers $a$ and $b$ if and only if $p = 3$ or $p \equiv 1 (mod 3)$ .

Lie symmetry classification and invariant solutions of time-fractional telegraph systems with variable coefficients

On invariant solutions of linear time-fractional diffusion-wave equations with variable coefficients

A quadratic form of p=3k+1 primes

A quadratic form of $p = 3 k + 1$ primes