Inverse and ill-posed problems, integral equations, BEM, applications in medicine.
Main publications:
A. M. Denisov, E. V. Zakharov, A. V. Kalinin, V. V. Kalinin Numerical Solution of the Inverse Electrocardiography Problem with the Use
of the Tikhonov Regularization Method // Moscow University Computational Mathematics and Cybernetics, 2008, Vol. 32, No. 2, pp. 61–68.