Lecture notes on quantum algorithms

K Khadiev - arxiv preprint arxiv:2212.14205, 2022 - arxiv.org
The lecture notes contain three parts. The first part is Grover's Search Algorithm with
modifications, generalizations, and applications. The second part is a discussion on the …

Classical and quantum computations with restricted memory

F Ablayev, M Ablayev, K Khadiev, A Vasiliev - … on the Occasion of His 60th …, 2018 - Springer
Abstract Automata and branching programs are known models of computation with restricted
memory. These models of computation were in focus of a large number of researchers …

Reordering method and hierarchies for quantum and classical ordered binary decision diagrams

K Khadiev, A Khadieva - International computer science symposium in …, 2017 - Springer
We consider Quantum OBDD model. It is restricted version of read-once Quantum Branching
Programs, with respect to “width” complexity. It is known that maximal complexity gap …

Quantum online algorithms with respect to space and advice complexity

K Khadiev, A Khadieva, I Mannapov - Lobachevskii Journal of …, 2018 - Springer
Online computation is a well-known area of computer science. We introduce quantum online
algorithms and investigate them with respect to a competitive ratio in two points of view …

Quantum online streaming algorithms with logarithmic memory

K Khadiev, A Khadieva - International Journal of Theoretical Physics, 2021 - Springer
We consider quantum and classical (deterministic or randomize) streaming online
algorithms with respect to competitive ratio. We show that there is a problem that can be …

On the quantum and classical complexity of solving subtraction games

D Kravchenko, K Khadiev, D Serov - … 2019, Novosibirsk, Russia, July 1–5 …, 2019 - Springer
We study algorithms for solving Subtraction games, which are sometimes referred as one-
heap Nim games. We describe a quantum algorithm which is applicable to any game on …

[PDF][PDF] Quantum request-answer game with buffer model for online algorithms. Application for The Most Frequent Keyword Problem.

K Khadiev - QuaInT+ doors, 2021 - ceur-ws.org
We consider online algorithms as a request-answer game. An adversary that generates
input requests, and an online algorithm answers. We consider a generalized version of the …

Lower bounds and hierarchies for quantum memoryless communication protocols and quantum ordered binary decision diagrams with repeated test

F Ablayev, A Ambainis, K Khadiev… - SOFSEM 2018: Theory and …, 2018 - Springer
We explore multi-round quantum memoryless communication protocols. These are restricted
version of multi-round quantum communication protocols. The “memoryless” term means …

Two-way and one-way quantum and classical automata with advice for online minimization problems

K Khadiev, A Khadieva, M Ziatdinov, I Mannapov… - Theoretical Computer …, 2022 - Elsevier
We consider online algorithms. Typically, the model is investigated with respect to the
competitive ratio. In this paper, we explore two-way automata and one-way automata as …

Two-way quantum and classical machines with small memory for online minimization problems

K Khadiev, A Khadieva - … on Micro-and Nano-Electronics 2018, 2019 - spiedigitallibrary.org
We consider online algorithms. Typically the model is investigated with respect to
competitive ratio. In this paper, we explore algorithms with small memory. We investigate two …