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ORCIDAlexandros Hollender
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- affiliation: University of Oxford, UK
- affiliation (former): EPFL, Lausanne, Switzerland
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2020 – today
- 2024
[j14]Jérémi Do Dinh, Alexandros Hollender
:
Tight inapproximability of Nash equilibria in public goods games. Inf. Process. Lett. 186: 106486 (2024)- [j13]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Separations in Proof Complexity and TFNP. J. ACM 71(4): 26:1-26:45 (2024) - [j12]Argyrios Deligkas, John Fearnley, Alexandros Hollender, Themistoklis Melissourgos:
Pure-Circuit: Tight Inapproximability for PPAD. J. ACM 71(5): 31:1-31:48 (2024) - [j11]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Further Collapses in \(\boldsymbol{\mathsf{TFNP}}\). SIAM J. Comput. 53(3): 573-587 (2024) - [c24]John Fearnley, Paul W. Goldberg, Alexandros Hollender, Rahul Savani:
The Complexity of Computing KKT Solutions of Quadratic Programs. STOC 2024: 892-903 - [c23]Aris Filos-Ratsikas, Kristoffer Arnsfelt Hansen, Kasper Høgh, Alexandros Hollender:
PPAD-Membership for Problems with Exact Rational Solutions: A General Approach via Convex Optimization. STOC 2024: 1204-1215 - [i30]Aris Filos-Ratsikas, Yiannis Giannakopoulos, Alexandros Hollender, Charalampos Kokkalis:
On the Computation of Equilibria in Discrete First-Price Auctions. CoRR abs/2402.12068 (2024) - [i29]Jérémi Do Dinh, Alexandros Hollender:
Tight Inapproximability of Nash Equilibria in Public Goods Games. CoRR abs/2402.14198 (2024) - [i28]Alexandros Hollender, Gilbert Maystre, Sai Ganesh Nagarajan:
The Complexity of Two-Team Polymatrix Games with Independent Adversaries. CoRR abs/2409.07398 (2024) - 2023
- [j10]John Fearnley, Paul Goldberg, Alexandros Hollender, Rahul Savani:
The Complexity of Gradient Descent: CLS = PPAD ∩ PLS. J. ACM 70(1): 7:1-7:74 (2023) - [j9]Aris Filos-Ratsikas, Yiannis Giannakopoulos, Alexandros Hollender, Philip Lazos, Diogo Poças:
On the Complexity of Equilibrium Computation in First-Price Auctions. SIAM J. Comput. 52(1): 80-131 (2023) - [j8]Aris Filos-Ratsikas, Alexandros Hollender, Katerina Sotiraki, Manolis Zampetakis:
Consensus-Halving: Does It Ever Get Easier? SIAM J. Comput. 52(2): 412-451 (2023) - [c22]Argyrios Deligkas, John Fearnley, Alexandros Hollender, Themistoklis Melissourgos:
Tight Inapproximability for Graphical Games. AAAI 2023: 5600-5607 - [c21]Alexandros Hollender, Emmanouil Zampetakis:
The Computational Complexity of Finding Stationary Points in Non-Convex Optimization. COLT 2023: 5571-5572 - [c20]Alexandros Hollender, Aviad Rubinstein:
Envy-Free Cake-Cutting for Four Agents. FOCS 2023: 113-122 - [c19]Paul W. Goldberg, Kasper Høgh, Alexandros Hollender:
The Frontier of Intractability for EFX with Two Agents. SAGT 2023: 290-307 - [i27]Paul W. Goldberg, Kasper Høgh, Alexandros Hollender:
The Frontier of Intractability for EFX with Two Agents. CoRR abs/2301.10354 (2023) - [i26]Alexandros Hollender, Manolis Zampetakis:
The Computational Complexity of Finding Stationary Points in Non-Convex Optimization. CoRR abs/2310.09157 (2023) - [i25]Alexandros Hollender, Aviad Rubinstein:
Envy-Free Cake-Cutting for Four Agents. CoRR abs/2311.02075 (2023) - [i24]John Fearnley, Paul W. Goldberg, Alexandros Hollender, Rahul Savani:
The Complexity of Computing KKT Solutions of Quadratic Programs. CoRR abs/2311.13738 (2023) - [i23]Aris Filos-Ratsikas, Kristoffer Arnsfelt Hansen, Kasper Høgh, Alexandros Hollender:
PPAD-membership for Problems with Exact Rational Solutions: A General Approach via Convex Optimization. CoRR abs/2312.01237 (2023) - 2022
- [j7]Argyrios Deligkas, Aris Filos-Ratsikas, Alexandros Hollender:
Two's company, three's a crowd: Consensus-halving for a constant number of agents. Artif. Intell. 313: 103784 (2022) - [j6]Paul W. Goldberg, Alexandros Hollender, Ayumi Igarashi, Pasin Manurangsi, Warut Suksompong:
Consensus Halving for Sets of Items. Math. Oper. Res. 47(4): 3357-3379 (2022) - [c18]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Further Collapses in TFNP. CCC 2022: 33:1-33:15 - [c17]Argyrios Deligkas, John Fearnley, Alexandros Hollender, Themistoklis Melissourgos:
Pure-Circuit: Strong Inapproximability for PPAD. FOCS 2022: 159-170 - [c16]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Separations in Proof Complexity and TFNP. FOCS 2022: 1150-1161 - [c15]Argyrios Deligkas, John Fearnley, Alexandros Hollender, Themistoklis Melissourgos:
Constant inapproximability for PPA. STOC 2022: 1010-1023 - [i22]Argyrios Deligkas, John Fearnley, Alexandros Hollender, Themistoklis Melissourgos:
Constant Inapproximability for PPA. CoRR abs/2201.10011 (2022) - [i21]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Further Collapses in TFNP. CoRR abs/2202.07761 (2022) - [i20]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Separations in Proof Complexity and TFNP. CoRR abs/2205.02168 (2022) - [i19]Argyrios Deligkas, John Fearnley, Alexandros Hollender, Themistoklis Melissourgos:
Pure-Circuit: Strong Inapproximability for PPAD. CoRR abs/2209.15149 (2022) - [i18]Argyrios Deligkas, John Fearnley, Alexandros Hollender, Themistoklis Melissourgos:
Tight Inapproximability for Graphical Games. CoRR abs/2209.15151 (2022) - [i17]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Further Collapses in TFNP. Electron. Colloquium Comput. Complex. TR22 (2022) - [i16]Mika Göös, Alexandros Hollender, Siddhartha Jain, Gilbert Maystre, William Pires, Robert Robere, Ran Tao:
Separations in Proof Complexity and TFNP. Electron. Colloquium Comput. Complex. TR22 (2022) - 2021
- [b1]Alexandros Hollender:
Structural results for total search complexity classes with applications to game theory and optimisation. University of Oxford, UK, 2021 - [j5]Georgios Birmpas, Jiarui Gan, Alexandros Hollender, Francisco J. Marmolejo Cossío, Ninad Rajgopal, Alexandros A. Voudouris:
Optimally Deceiving a Learning Leader in Stackelberg Games. J. Artif. Intell. Res. 72: 507-531 (2021) - [j4]Paul W. Goldberg, Alexandros Hollender:
The Hairy Ball problem is PPAD-complete. J. Comput. Syst. Sci. 122: 34-62 (2021) - [j3]Georgios Amanatidis, Georgios Birmpas, Aris Filos-Ratsikas, Alexandros Hollender, Alexandros A. Voudouris:
Maximum Nash welfare and other stories about EFX. Theor. Comput. Sci. 863: 69-85 (2021) - [j2]Alexandros Hollender:
The classes PPA-k: Existence from arguments modulo k. Theor. Comput. Sci. 885: 15-29 (2021) - [c14]Aris Filos-Ratsikas, Kristoffer Arnsfelt Hansen, Kasper Høgh, Alexandros Hollender:
FIXP-membership via Convex Optimization: Games, Cakes, and Markets. FOCS 2021: 827-838 - [c13]Argyrios Deligkas, Aris Filos-Ratsikas, Alexandros Hollender:
Two's Company, Three's a Crowd: Consensus-Halving for a Constant Number of Agents. EC 2021: 347-368 - [c12]Aris Filos-Ratsikas, Yiannis Giannakopoulos, Alexandros Hollender, Philip Lazos, Diogo Poças:
On the Complexity of Equilibrium Computation in First-Price Auctions. EC 2021: 454-476 - [c11]Aris Filos-Ratsikas, Alexandros Hollender, Katerina Sotiraki, Manolis Zampetakis:
A Topological Characterization of Modulo-p Arguments and Implications for Necklace Splitting. SODA 2021: 2615-2634 - [c10]John Fearnley, Paul W. Goldberg, Alexandros Hollender, Rahul Savani:
The complexity of gradient descent: CLS = PPAD ∩ PLS. STOC 2021: 46-59 - [i15]Aris Filos-Ratsikas, Yiannis Giannakopoulos, Alexandros Hollender, Philip Lazos, Diogo Poças:
On the Complexity of Equilibrium Computation in First-Price Auctions. CoRR abs/2103.03238 (2021) - [i14]Aris Filos-Ratsikas, Kristoffer Arnsfelt Hansen, Kasper Høgh, Alexandros Hollender:
FIXP-membership via Convex Optimization: Games, Cakes, and Markets. CoRR abs/2111.06878 (2021) - 2020
- [j1]Paul W. Goldberg, Alexandros Hollender, Warut Suksompong:
Contiguous Cake Cutting: Hardness Results and Approximation Algorithms. J. Artif. Intell. Res. 69: 109-141 (2020) - [c9]Paul W. Goldberg, Alexandros Hollender, Warut Suksompong:
Contiguous Cake Cutting: Hardness Results and Approximation Algorithms. AAAI 2020: 1990-1997 - [c8]Georgios Amanatidis, Georgios Birmpas, Aris Filos-Ratsikas, Alexandros Hollender, Alexandros A. Voudouris:
Maximum Nash Welfare and Other Stories About EFX. IJCAI 2020: 24-30 - [c7]Georgios Birmpas, Jiarui Gan, Alexandros Hollender, Francisco J. Marmolejo Cossío, Ninad Rajgopal, Alexandros A. Voudouris:
Optimally Deceiving a Learning Leader in Stackelberg Games. NeurIPS 2020 - [c6]Aris Filos-Ratsikas, Alexandros Hollender, Katerina Sotiraki, Manolis Zampetakis:
Consensus-Halving: Does It Ever Get Easier? EC 2020: 381-399 - [c5]Paul W. Goldberg, Alexandros Hollender, Ayumi Igarashi, Pasin Manurangsi, Warut Suksompong:
Consensus Halving for Sets of Items. WINE 2020: 384-397 - [i13]Georgios Amanatidis, Georgios Birmpas, Aris Filos-Ratsikas, Alexandros Hollender, Alexandros A. Voudouris:
Maximum Nash Welfare and Other Stories About EFX. CoRR abs/2001.09838 (2020) - [i12]Aris Filos-Ratsikas, Alexandros Hollender, Katerina Sotiraki, Manolis Zampetakis:
Consensus-Halving: Does it Ever Get Easier? CoRR abs/2002.11437 (2020) - [i11]Aris Filos-Ratsikas, Alexandros Hollender, Katerina Sotiraki, Manolis Zampetakis:
A Topological Characterization of Modulo-p Arguments and Implications for Necklace Splitting. CoRR abs/2003.11974 (2020) - [i10]Georgios Birmpas, Jiarui Gan, Alexandros Hollender, Francisco J. Marmolejo Cossío, Ninad Rajgopal, Alexandros A. Voudouris:
Optimally Deceiving a Learning Leader in Stackelberg Games. CoRR abs/2006.06566 (2020) - [i9]Paul W. Goldberg, Alexandros Hollender, Ayumi Igarashi, Pasin Manurangsi, Warut Suksompong:
Consensus Halving for Sets of Items. CoRR abs/2007.06754 (2020) - [i8]Argyrios Deligkas, Aris Filos-Ratsikas, Alexandros Hollender:
Two's Company, Three's a Crowd: Consensus-Halving for a Constant Number of Agents. CoRR abs/2007.15125 (2020) - [i7]John Fearnley, Paul W. Goldberg, Alexandros Hollender, Rahul Savani:
The Complexity of Gradient Descent: CLS = PPAD ∩ PLS. CoRR abs/2011.01929 (2020)
2010 – 2019
- 2019
- [c4]Paul W. Goldberg, Alexandros Hollender:
The Hairy Ball Problem is PPAD-Complete. ICALP 2019: 65:1-65:14 - [c3]Alexandros Hollender:
The Classes PPA-k: Existence from Arguments Modulo k. WINE 2019: 214-227 - [i6]Paul W. Goldberg, Alexandros Hollender:
The Hairy Ball Problem is PPAD-Complete. CoRR abs/1902.07657 (2019) - [i5]Paul W. Goldberg, Alexandros Hollender, Warut Suksompong:
Contiguous Cake Cutting: Hardness Results and Approximation Algorithms. CoRR abs/1911.05416 (2019) - [i4]Alexandros Hollender:
The Classes PPA-k: Existence from Arguments Modulo k. CoRR abs/1912.03729 (2019) - 2018
- [c2]Axel Bacher, Olivier Bodini, Alexandros Hollender, Jérémie O. Lumbroso:
MergeShuffle: a very fast, parallel random permutation algorithm. GASCom 2018: 43-52 - [i3]Alexandros Hollender, Paul W. Goldberg:
The Complexity of Multi-source Variants of the End-of-Line Problem, and the Concise Mutilated Chessboard. Electron. Colloquium Comput. Complex. TR18 (2018) - 2015
- [i2]Axel Bacher, Olivier Bodini, Alexandros Hollender, Jérémie O. Lumbroso:
MergeShuffle: A Very Fast, Parallel Random Permutation Algorithm. CoRR abs/1508.03167 (2015) - 2014
- [c1]Alexander Schaub, Emmanuel Schneider, Alexandros Hollender, Vinicius Calasans, Laurent Jolie, Robin Touillon, Annelie Heuser, Sylvain Guilley, Olivier Rioul:
Attacking Suggest Boxes in Web Applications Over HTTPS Using Side-Channel Stochastic Algorithms. CRiSIS 2014: 116-130 - [i1]Alexander Schaub, Emmanuel Schneider, Alexandros Hollender, Vinicius Calasans, Laurent Jolie, Robin Touillon, Annelie Heuser, Sylvain Guilley, Olivier Rioul:
Attacking Suggest Boxes in Web Applications Over HTTPS Using Side-Channel Stochastic Algorithms. IACR Cryptol. ePrint Arch. 2014: 959 (2014)
Coauthor Index
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