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Super-Cubic Lower Bound for Generalized Karchmer-Wigderson Games
Ch. 66.
Ignatiev A., Mihajlin I., Smal A.
Publication based on the results of:
In book
Saarbrücken, Вадерн: Schloss-Dagstuhl - Leibniz Zentrum für Informatik, 2022.
V. V. Kochergin, A. V. Mikhailovich, Mathematical notes 2025 Vol. 117 No. 4 P. 579–594
The exact value of the complexity of the circuit implementation of an arbitrary Boolean function in a certain basis consisting of negation and all monotone Boolean functions is found. The complexity of a function is defined as the least number of basis elements sufficient to construct a circuit implementation of this function. ...
Added: February 28, 2026
Vereshchagin N., Дектярев М. В., Математический сборник 2025 Т. 216 № 6 С. 3–45
Полудуплексная коммуникационная сложность с противником определена в работе [Hoover, K., Impagliazzo, R., Mihajlin, I., Smal, A. V. Half-Duplex Communication Complexity, ISAAC 2018.] Полудуплексные коммуникационные протоколы обобщают классические протоколы, определенные Эндрю Яо в [Yao, A. C.-C. Some Complexity Questions Related to Distributive Computing (Preliminary Report), STOC 1979]. До сих пор было неизвестным, различаются ли коммуникационные сложности, определяемые этими моделями. В ...
Added: August 23, 2025
Kochergin V., Mikhailovich A., Математические заметки 2025 Т. 117 № 4 С. 523–542
The exact value of the complexity of the circuit implementation of an arbitrary Boolean function in a certain basis consisting of negation and all monotone Boolean functions is found. The complexity of a function is defined as the least number of basis elements sufficient to construct a circuit implementation of this function. ...
Added: April 8, 2025
Mikhailovich A., Kochergin V., М.: Физматлит, 2024.
Added: March 10, 2025
Kochergin V., Mikhailovich A., Mathematical notes 2023 Vol. 113 No. 5 P. 794–803
The problem of determining the nonmonotone complexity of the implementation ofk-valued logic functions by logic circuits in bases consisting of all monotone (with respect to thestandard order) functions and finitely many nonmonotone functions is investigated. In calculatingthe complexity measure under examination only those elements of the circuit which are assignednonmonotone basis functions are taken into ...
Added: November 19, 2023
Alexander Kozachinskiy, Vladimir Podolskii, Theory of Computing 2022 Vol. 18 No. 15 P. 1–33
We propose a generalization of the Karchmer--Wigderson communication games to the multiparty setting. Our generalization turns out to be tightly connected to circuits consisting of threshold gates. This allows us to obtain new explicit constructions of such circuits for several functions. In particular, we provide an explicit (polynomial-time computable) log-depth monotone formula for the Majority ...
Added: December 10, 2022
Kochergin V., Mikhailovich A., В кн.: Материалы XIV Международного семинара "Дискретная математика и ее приложения" имени академика О.Б.Лупанова (Москва, МГУ, 20-25 июня 2022 г.).: М.: Институт прикладной математики им. М.В. Келдыша РАН, 2022. С. 76–79.
Установлена нижняя оценка немонотонной сложности функций многозначной логики, отличающающаяся от известной верхней оценки не более чем на абсолютную константу ...
Added: October 29, 2022
Kochergin V., Чебышевский сборник 2022 Т. 23 № 2(83) С. 121–150
В работе предпринята попытка не только дать обзор результатов, полученных
О. М. Касим–Заде, крупнейшим специалистом по дискретной математике и математической кибернетике, но и осознать его научное наследие в таких направлениях как исследование мер схемной сложности булевых функций, связанных с функционированием схем,
проблематика неявной и параметрической выразимости в конечнозначных логиках, вопросы глубины и сложности булевых функций и функций ...
Added: October 29, 2022
V. V. Kochergin, Moscow University Mathematics Bulletin 2019 Vol. 74 No. 2 P. 43–48
The problem of the minimal number of multiplication operations sufficient for the joint computing of three monomials in three variables is considered.
For this problem, we propose a simple proof of the upper bound asymptotically equal to the lower bound.
The known proof of a similar bound contains more than 60 pages. ...
Added: December 6, 2021
Vyalyi M., Problems of Information Transmission 2021 Vol. 57 No. 2 P. 143–160
We consider a generalization of the Pólya–Kasteleyn approach to counting the number of perfect matchings in a graph based on computing the symbolic Pfaffian of a directed adjacency matrix of the graph. Complexity of algorithms based on this approach is related to the complexity of the sign function of a perfect matching in generalized decision ...
Added: August 20, 2021
Podolskii V. V., Sherstov A., ACM Transactions on Computation Theory 2020 Vol. 12 No. 4 P. 26
A major goal in complexity theory is to understand the communication complexity of number-on-the-forehead problems f:({0, 1}^n)^k → {0, 1} with k > log n parties. We study the problems of inner product and set disjointness and determine their randomized communication complexity for every k ≥ log n, showing in both cases that Θ(1 + ⌈log n⌉/ log ⌈1 + k/ log n⌉) bits are necessary and ...
Added: December 23, 2020
Podolskii V. V., Kulikov A., Theory of Computing Systems 2019 Vol. 63 No. 5 P. 956–986
We study the following computational problem: for which values of k, the majority of n bits MAJn can be computed with a depth two formula whose each gate computes a majority function of at most k bits? The corresponding computational model is denoted by MAJk ∘ MAJk. We observe that the minimum value of k for which there exists a MAJk ∘ MAJk circuit that has ...
Added: November 9, 2019
V.V. Kochergin, A.V. Mikhailovich, Mathematical notes 2019 Vol. 105 No. 1 P. 28–35
We study the complexity of the realization of Boolean functions by circuits in infinite complete bases containing all monotone functions with zero weight (cost of use) and finitely many nonmonotone functions with unit weight. The complexity of the realization of Boolean functions in the case where the only nonmonotone element of the basis is negation ...
Added: April 22, 2019
V.V. Kochergin, A.V. Mikhailovich, Computational Mathematics and Modeling 2019 Vol. 30 No. 1 P. 13–25
We investigate the realization complexity of k-valued logic functions k ≥ 2 by combinational circuits in an infinite basis that includes the negation of the Lukasiewicz function, i.e., the function k−1−x, and all monotone functions. Complexity is understood as the total number of circuit elements. For an arbitrary function f, we establish lower and upper ...
Added: April 22, 2019
Klenin E., Kozachinskiy A., , in: 43rd International Symposium on Mathematical Foundations of Computer Science (MFCS 2018)Vol. 117.: Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, 2018. P. 1–15.
Added: August 28, 2018
Shitov Y., Discrete and Computational Geometry 2019 Vol. 61 No. 3 P. 653–660
A Euclidean distance matrix D(α) is defined by D_ij=(α_i−α_j)^2, where α=(α_1,…,α_n) is a real vector. We prove that D(α) cannot be written as a sum of [2sqrt(n)−2] nonnegative rank-one matrices, provided that the coordinates of α are algebraically independent. As a corollary, we provide an asymptotically optimal separation between the complexities of quantum and classical communication protocols computing a given matrix in expectation. ...
Added: March 15, 2018
Mikhailovich A.V., Kochergin V.V., Siberian Electronic Mathematical Reports 2017 Vol. 14 P. 1100–1107
The problem of the complexity of multi-valued logic functions realization by circuits in a special basis is investigated. This kind of basis consists of elements of two types. The first type of elements are monotone functions with zero weight. The second type of elements are non-monotone elements with unit weight. The non-empty set of elements ...
Added: September 28, 2017
Kochergin V., Mikhailovich A., Дискретный анализ и исследование операций 2018 Т. 25 № 1 С. 42–74
The complexity of realization of k-valued logic functions by circuits in a special infinite basis is invesigated. This basis consists of Post negation (i.e. function x+1(mod k)) and all monotone functions. The complexity of the circuit is the total number of elements of this circuit. The upper and the lower bounds of the complexity were ...
Added: September 28, 2017
Mikhailovich A., Kochergin V., XXI век: итоги прошлого и проблемы настоящего плюс 2017 № 4(38) С. 98–105
The problem of the effective realization of Boolean functions and multi-valued logic functions by circuits in some infinite bases is considered. The bases consist of all monotone functions and finite number of non-monotone functions. The measure of the realization efficiency is non-monotone complexity. That is the number of non-monotone elements in the circuit (we assume ...
Added: September 28, 2017
Mikhailovich A., Kochergin V., В кн.: Материалы 5-й Российской школы-семинара "Синтаксис и семантика логических систем".: Улан-Удэ: Издательство Бурятского госуниверситета, 2017. С. 48–52.
Problem of multi-valued function realization by logic circuits in special bases is investigated. These bases consist of all monotone functions with zero weight and finite number of non-monotone functions with unit weight. ...
Added: September 22, 2017
Михайлович А. В., Кочергин В. В., В кн.: Материалы XVIII международной конференции "Проблемы теоретической кибернетики" (Пенза, 19-23 июня 2017 г.).: М.: МАКС Пресс, 2017. С. 142–144.
The problem of multi-valued functions realization by circuits over special basis is inverstigated. The basis consis of Post negation and all monotone functions. ...
Added: September 21, 2017