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  1. Chapter and Conference Paper

    Correction to: Parameterized Algorithms for Covering by Arithmetic Progressions

    Ivan Bliznets, Jesper Nederlof in SOFSEM 2024: Theory and Practice of Comput… (2024)

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    Chapter and Conference Paper

    Exact and Parameterized Algorithms for Choosability

    In the Choosability problem (or list chromatic number problem), for a given graph G, we need to find the smallest k such that G admits a list coloring for any list assignment where all lists contain at least k co...

    Ivan Bliznets, Jesper Nederlof in SOFSEM 2024: Theory and Practice of Computer Science (2024)

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    Chapter and Conference Paper

    Parameterized Algorithms for Covering by Arithmetic Progressions

    An arithmetic progression is a sequence of integers in which the difference between any two consecutive elements is the same. We investigate the parameterized complexity of two problems related to arithmetic prog...

    Ivan Bliznets, Jesper Nederlof in SOFSEM 2024: Theory and Practice of Comput… (2024)

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    Chapter and Conference Paper

    Tight Double Exponential Lower Bounds

    The majority of established algorithms have polynomial, exponential, or factorial runtime complexities. Examples of problems that admit tight double or even triple exponential bounds on computational complexit...

    Ivan Bliznets, Markus Hecher in Theory and Applications of Models of Computation (2024)

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    Chapter and Conference Paper

    Parameterized Complexity of Paired Domination

    The Paired Domination problem is one of the well-studied variants of the classical Dominating Set problem. In a graph G on n vertices, a dominating set D (set of vertices such that

    Nikita Andreev, Ivan Bliznets, Madhumita Kundu, Saket Saurabh in Combinatorial Algorithms (2024)

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    Article

    Solving Target Set Selection with Bounded Thresholds Faster than \(2^n\)

    In this paper we consider the Target Set Selection problem. The problem naturally arises in many fields like economy, sociology, medicine. In the Target Set Selection problem one is given a graph G with a functio...

    Ivan Bliznets, Danil Sagunov in Algorithmica (2023)

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    Chapter and Conference Paper

    Enumeration of Minimal Tropical Connected Sets

    A subset of vertices in a vertex-colored graph is called tropical if vertices of each color present in the subset. This paper is dedicated to the enumeration of all minimal tropical connected sets in various c...

    Ivan Bliznets, Danil Sagunov, Eugene Tagin in Algorithms and Complexity (2023)

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    Chapter and Conference Paper

    Fair Division with Minimal Withheld Information in Social Networks

    We present a study of a few graph based problems motivated by fair allocation of resources in a social network. The central role in the paper is played by the following problem: What is the largest number of i...

    Ivan Bliznets, Anton Bukov, Danil Sagunov in Computing and Combinatorics (2022)

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    Chapter and Conference Paper

    Two Generalizations of Proper Coloring: Hardness and Approximability

    We study two natural generalizations of q -Coloring. These problems can be seen as optimization problems and are mostly applied to graphs that are not properly colorable with q colors. One of them is known as Max...

    Ivan Bliznets, Danil Sagunov in Computing and Combinatorics (2022)

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    Chapter and Conference Paper

    Maximizing Happiness in Graphs of Bounded Clique-Width

    Clique-width is one of the most important parameters that describes structural complexity of a graph. Probably, only treewidth is more studied graph width parameter. In this paper we study how clique-width inf...

    Ivan Bliznets, Danil Sagunov in LATIN 2020: Theoretical Informatics (2020)

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    Chapter and Conference Paper

    Lower Bounds for the Happy Coloring Problems

    In this paper, we study the Maximum Happy Vertices and the Maximum ...

    Ivan Bliznets, Danil Sagunov in Computing and Combinatorics (2019)

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    Chapter and Conference Paper

    On Happy Colorings, Cuts, and Structural Parameterizations

    We study the Maximum Happy Vertices and Maximum Happy Edges problems. The former problem is a variant of clusterization, where some vertices have already been assigned to clusters

    Ivan Bliznets, Danil Sagunov in Graph-Theoretic Concepts in Computer Science (2019)

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    Chapter and Conference Paper

    Upper and Lower Bounds for Different Parameterizations of (n,3)-MAXSAT

    In this paper, we consider the (n,3)-MAXSAT problem. The problem is a special case of the Maximum Satisfiability problem with an additional requirement that in input formula each variable appears at most three...

    Tatiana Belova, Ivan Bliznets in Combinatorial Optimization and Applications (2018)

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    Article

    Parameterized Complexity of Superstring Problems

    In the Shortest Superstring problem we are given a set of strings \(S=\{s_1, \ldots , s_n\}\) ...

    Ivan Bliznets, Fedor V. Fomin, Petr A. Golovach, Nikolay Karpov in Algorithmica (2017)

  15. Article

    Open Access

    Largest Chordal and Interval Subgraphs Faster than \(2^n\)

    We prove that in a graph with n vertices, induced chordal and interval subgraphs with the maximum number of vertices can be found in time ...

    Ivan Bliznets, Fedor V. Fomin, Michał Pilipczuk, Yngve Villanger in Algorithmica (2016)

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    Chapter and Conference Paper

    Parameterized Complexity of Superstring Problems

    In the Shortest Superstring problem we are given a set of strings \(S=\{s_1, \ldots , s_n\}\) ...

    Ivan Bliznets, Fedor V. Fomin, Petr A. Golovach in Combinatorial Pattern Matching (2015)

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    Chapter and Conference Paper

    A Subexponential Parameterized Algorithm for Proper Interval Completion

    In the Proper Interval Completion problem we are given a graph G and an integer k, and the task is to turn G using at most k edge additions into a proper interval graph, i.e., a graph admitting an intersection mo...

    Ivan Bliznets, Fedor V. Fomin, Marcin Pilipczuk, Michał Pilipczuk in Algorithms - ESA 2014 (2014)

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    Chapter and Conference Paper

    Largest Chordal and Interval Subgraphs Faster Than 2 n

    We prove that in an n-vertex graph, induced chordal and interval subgraphs with the maximum number of vertices can be found in time $\mathcal{O}(2^{\l...

    Ivan Bliznets, Fedor V. Fomin, Michał Pilipczuk, Yngve Villanger in Algorithms – ESA 2013 (2013)

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    Chapter and Conference Paper

    A New Algorithm for Parameterized MAX-SAT

    We show how to check whether at least k clauses of an input formula in CNF can be satisfied in time O *(1.358 k ). This improves the bound O *(1.370 ...

    Ivan Bliznets, Alexander Golovnev in Parameterized and Exact Computation (2012)